# Error codes
<a name="error-codes"></a>

When a command fails, you receive an error from Amazon DocumentDB (with MongoDB compatibility) that contains a numeric error `code` and a descriptive message (`errmsg`). Use the following table to identify the error codes that Amazon DocumentDB 8.0 might return to your client application. Where an error code corresponds to a single condition, the description matches the message text returned by the server. Codes that cover multiple conditions have a general description.

**Important**  
Error codes might change between major versions of Amazon DocumentDB. We recommend that you don't build application logic that depends on a specific numeric error code remaining stable across versions.


| Error code | Description | 
| --- | --- | 
| 1 | Item not found | 
| 2 | A command argument, option, or field value is invalid or unsupported. | 
| 4 | A required field is missing or a configuration value is not correctly formatted. | 
| 5 | A view definition references itself, creating a cycle, or a filesystem error occurred. | 
| 9 | A command, field, hint, or resume token could not be parsed or has an invalid format. | 
| 10 | The target collection was not found or no collection was specified. | 
| 11 | A referenced user could not be found, or the target collection already exists. | 
| 13 | You are not authorized to run this command, or your authentication is invalid. | 
| 14 | A field or value has the wrong data type. | 
| 15 | A value overflowed its allowed range during evaluation. | 
| 16 | The write batch is empty, malformed, or exceeds the allowed operation count. | 
| 17 | Not all objects have the same type | 
| 18 | Authentication failed because the credentials are invalid or the user does not exist. | 
| 19 | Data processing primitive operation not found or primitive type not found | 
| 20 | The requested operation is not permitted in this context. | 
| 26 | The target namespace or collection does not exist. | 
| 27 | The requested index does not exist or no suitable index is available. | 
| 37 | A pipeline or aggregation stage argument is missing, empty, or invalid. | 
| 38 | Database name not found | 
| 39 | The operation was canceled because it exceeded maxTimeMS, ran too long, or exceeded available memory. | 
| 40 | An update conflicts with another field, or writes are throttled or disabled by garbage collection. | 
| 41 | JavaScript error | 
| 43 | The specified cursor no longer exists or has expired. | 
| 44 | Array index out of bounds | 
| 48 | A collection, view, or namespace with that name already exists. | 
| 51 | Illegal update operator | 
| 52 | A field name uses a reserved '$' prefix that is not valid for storage. | 
| 53 | The \_id field has an invalid or unsupported type, such as an array or regex. | 
| 54 | cannot infer query fields to set | 
| 55 | Transaction already committed | 
| 56 | A field name in the request is empty, which is not allowed. | 
| 57 | Transaction invalidated by other transaction | 
| 58 | Field value too long | 
| 59 | The requested command is unknown or not supported. | 
| 61 | Invalid collection | 
| 62 | Cannot make changes to collection | 
| 65 | batch op errors occurred | 
| 66 | An update attempted to modify the immutable \_id field. | 
| 67 | The index could not be created because of an invalid or unsupported specification. | 
| 68 | An index with conflicting properties already exists. | 
| 70 | field used with $snippet is not configured as snippet column | 
| 71 | Index already exists with different options | 
| 72 | One or more options specified for the command or index are invalid. | 
| 73 | The namespace, database, or collection name is invalid or not allowed for this operation. | 
| 74 | Collection does not have a text index defined. | 
| 75 | A text index is defined for this collection, but not for this field. | 
| 77 | Can't use snapshot with sort | 
| 78 | Document not found | 
| 80 | The query exceeds the maximum allowed size. | 
| 82 | Time frame has invalid formatting. Valid format: '1 m' or '3 y' '<number> h/d/w/s/m/y' | 
| 85 | An index with that name already exists but with different options. | 
| 86 | The requested index conflicts with an existing index that has the same name. | 
| 87 | $sort key ordering must be 1 (for ascending) or -1 (for descending) | 
| 92 | Not enough space for operation | 
| 93 | User already exists | 
| 94 | The target collection, cluster, or resource privilege is invalid or unavailable. | 
| 95 | Database does not exist | 
| 96 | 'writeConcern' parameter is invalid | 
| 97 | Password cannot be empty | 
| 99 | Undefined role or privilege | 
| 102 | Cannot add a role that is already built-in | 
| 103 | A valid role could not be extracted from the collection. | 
| 105 | The user is invalid or the authorization library could not be initialized. | 
| 107 | Database cannot be granted roles from other database | 
| 111 | \_id must be exactly specified when providing update document | 
| 112 | Write Conflict | 
| 113 | The specified role does not exist. | 
| 114 | Role already exists | 
| 115 | anyResource should be true when specified | 
| 116 | resources should have either db and collection set, cluster set or anyResource set | 
| 117 | The operation conflicts with another in-progress operation, such as an active transaction. | 
| 120 | 'showPrivileges' cannot be specified as we are showing all users | 
| 121 | Document failed validation | 
| 122 | Update error | 
| 124 | Error processing schema id | 
| 125 | The command failed, often because of an ambiguous reference or missing session. | 
| 126 | Database already exists | 
| 127 | Database name already exists in a difference case name | 
| 128 | Too many fields | 
| 129 | Waiting for drop database | 
| 130 | Bad parameter value | 
| 136 | The cursor position was lost, or a required change stream feature is not enabled. | 
| 139 | JS Interpreter failure | 
| 145 | Alias not defined in query | 
| 147 | not master | 
| 148 | Insufficient resources to run query | 
| 149 | Alias already defined in query | 
| 154 | An argument has an illegal value or an incorrect (non-numeric) type. | 
| 155 | NULL value encountered | 
| 156 | UNDEFINED value encountered | 
| 157 | NAN value encountered | 
| 158 | Collection already in use for another purpose | 
| 159 | A duration value overflowed or a network operation failed. | 
| 161 | The requested collation version is invalid or unavailable. | 
| 163 | A field or name is not valid for storage. | 
| 164 | A query operator was nested in a way that is not allowed. | 
| 165 | A view exceeds the maximum nesting depth of 20 or references itself in a cycle. | 
| 166 | The operation is not supported on a view, or too many positional elements were used. | 
| 167 | The requested operation or stage is not supported on a view. | 
| 168 | An expression or pipeline operator is unrecognized or has an invalid argument. | 
| 169 | BadValue $maxTimeMS has non-integral value | 
| 170 | BadValue $maxTimeMS is out of range | 
| 171 | An index cannot be built over multiple array fields. | 
| 173 | Skip value must be positive | 
| 174 | Expected log verbosity to be a number | 
| 181 | The key pattern matches multiple indexes; specify the index by name instead. | 
| 197 | The index specification contains an invalid or unsupported field. | 
| 207 | uuid must be a 16-byte binary field with UUID (4) subtype | 
| 224 | This query feature is not allowed in the current context. | 
| 225 | A newer transaction has started on the session, so this older one cannot proceed. | 
| 241 | A value could not be converted to the requested type in $convert. | 
| 250 | Invalid view | 
| 251 | The specified transaction number does not match any active transaction. | 
| 252 | Recursion limit reached | 
| 253 | Could not insert entry into view | 
| 254 | Could not delete entry from view | 
| 256 | Document filtered by $having clause | 
| 257 | The total size of all operations in the transaction exceeds the allowed limit. | 
| 263 | This operation cannot be run inside a multi-document transaction. | 
| 291 | unable to find index for $geoNear query | 
| 300 | Authentication failed because of a SASL handshake or session error. | 
| 301 | An authentication mechanism or requested operation is not supported. | 
| 302 | Authentication needs additional data to complete the SASL exchange. | 
| 303 | The requested stage, option, or role configuration is not supported. | 
| 304 | The requested aggregation stage is not supported. | 
| 305 | The aggregation projection operator is not supported. | 
| 306 | The specified aggregation group accumulator operator is not supported. | 
| 502 | Column already exists | 
| 505 | Insertion not allowed here | 
| 601 | Coordinates are out of bounds | 
| 602 | Index error | 
| 700 | Changes to this parameter is not allowed in live mode | 
| 701 | Invalid value for this parameter | 
| 703 | Illegal state transition for this parameter | 
| 999 | Bad transaction ID | 
| 4570 | $lookup parameter expecting string value | 
| 4572 | $lookup is missing required fields | 
| 10065 | A parameter that must be an object (such as vars or $rand) was given a non-object value. | 
| 10107 | not master | 
| 11000 | A duplicate key violates a unique index constraint. | 
| 11601 | The operation was interrupted. | 
| 11603 | Client request corrupted or illegal syntax | 
| 13103 | too many compound keys | 
| 13297 | A database with the same name already exists but differs only in letter case. | 
| 13388 | Unrecognized pipeline stage name: $collStats | 
| 13435 | not master and slaveOk=false | 
| 14031 | Not enough disk space | 
| 15888 | must pass name of collection to create | 
| 15947 | a group's fields must be specified in an object | 
| 15950 | Group aggregate field name cannot be an operator | 
| 15952 | unknown $group operator | 
| 15955 | Syntax error in group aggregation operator: the \_id field must be specified | 
| 15956 | The $skip argument is negative; it must be a non-negative number. | 
| 15957 | the limit must be specified as a number | 
| 15958 | The $limit value must be a positive number. | 
| 15959 | the match filter must be an expression in an object | 
| 15969 | Syntax error: the value of the $project operator must be a document. | 
| 15972 | Argument to $skip must be a number | 
| 15973 | the $sort key specification must be an object | 
| 15974 | $sort key ordering must be specified using a number | 
| 15975 | $sort key ordering must be 1 (for ascending) or -1 (for descending) | 
| 15976 | $sort stage must have at least one sort key | 
| 15981 | query field is not a string | 
| 15983 | An object representing an expression must have exactly one field. | 
| 15992 | disallowed field type NULL in object expression | 
| 15998 | Field path names may not be empty strings. | 
| 16006 | A value could not be converted to a Date because it is not a valid date type. | 
| 16007 | A value cannot be converted to a string because a string was expected. | 
| 16020 | An expression operator was called with the wrong number of arguments. | 
| 16034 | $substrBytes starting index must be a numeric type. | 
| 16035 | $substrBytes length argument must be a numeric type. | 
| 16395 | $where is not allowed inside of a $match aggregation expression | 
| 16400 | can't add an expression for a field because there is already an expression for that field or one of its sub-fields. | 
| 16401 | can't add an expression for a subfield because there is already an expression that applies to the whole field | 
| 16404 | $ expressions are not allowed in this context | 
| 16406 | Cannot exclude fields other than \_id | 
| 16410 | A $project field name or path illegally starts with or contains '$'. | 
| 16411 | Field names cannot contain null character(s) | 
| 16419 | field path must not contain embedded null characters | 
| 16424 | $near is not allowed inside of a $match aggregation expression | 
| 16426 | $nearSphere/$near is not allowed inside of a $match aggregation expression | 
| 16435 | Pipeline component must contain one element | 
| 16493 | Tried to create string longer than 16MB | 
| 16554 | $add only supports numeric or date types. | 
| 16605 | $geoNear requires a valid 'near' field and correctly typed geoNear options. | 
| 16606 | $geoNear requires a 'distanceField' option as a String | 
| 16607 | $geoNear requires the given option to be specified as a string. | 
| 16608 | Divide by zero | 
| 16610 | $mod was given a divisor of zero. | 
| 16611 | $mod only supports numeric types for both operands. | 
| 16612 | only one date allowed in an $add expression | 
| 16613 | The operation attempted to subtract a non-numeric, non-date value from a date. | 
| 16702 | $concat only supports string arguments. | 
| 16730 | textIndexVersion is out of range | 
| 16755 | can't index geometry with strict winding order | 
| 16800 | can't have 2 geo fields | 
| 16801 | 2d has to be first in index | 
| 16804 | location object expected, location array not in correct format | 
| 16810 | $mod requires an array of exactly two values as its parameter. | 
| 16837 | An update path cannot modify the same field more than once. | 
| 16868 | Invalid variable name | 
| 16869 | Invalid variable name | 
| 16870 | Invalid variable name | 
| 16872 | A field path is empty or '$' alone is used as a field path in $project. | 
| 16873 | Fieldpath does not start with $ | 
| 16874 | $let only supports an object as its argument | 
| 16875 | $let was given an unrecognized parameter. | 
| 16876 | Missing 'vars' parameter to $let | 
| 16877 | Missing 'in' parameter to $let | 
| 16878 | $map only supports an object as its argument | 
| 16879 | $map is given an unrecognized parameter. | 
| 16880 | $map is missing its required 'input' parameter. | 
| 16881 | Missing required field | 
| 16882 | Missing 'in' parameter to $map | 
| 16883 | The input to $map must be an array. | 
| 16898 | $minDistance must be non-negative | 
| 16899 | $maxDistance must be a number | 
| 16900 | $maxDistance must be non-negative | 
| 16945 | Exceeded memory limit for $group or $lookup. Pass allowDiskUse:true to opt in. | 
| 16949 | Invalid aggregation option; allowDiskUse must be a boolean value. | 
| 16990 | $out requires a string or object argument naming the output target. | 
| 16996 | insert for $out failed | 
| 16997 | $out failed because the target collection's indexes changed during processing. | 
| 17040 | $allElementsTrue's argument must be an array. | 
| 17041 | $anyElementTrue's argument must be an array. | 
| 17042 | Both operands of $setIsSubset must be arrays. | 
| 17043 | All operands of $setUnion must be arrays. | 
| 17044 | An operand of $setEquals is not an array. | 
| 17045 | $setEquals requires at least two arguments. | 
| 17046 | Both operands of $setIsSubset must be arrays. | 
| 17047 | All operands of $setIntersection must be arrays. | 
| 17048 | Both operands of $setDifference must be arrays. | 
| 17049 | Both operands of $setDifference must be arrays. | 
| 17053 | $redact's expression should not return anything aside from the variables $$KEEP, $$DESCEND, and $$PRUNE | 
| 17080 | Missing 'if' parameter to cond | 
| 17081 | Missing 'then' parameter to cond | 
| 17082 | Missing 'else' parameter to cond | 
| 17083 | Unrecognized parameter to $cond | 
| 17124 | The argument to $size must be an array. | 
| 17275 | Can't redefine ROOT | 
| 17276 | Variable not found | 
| 17280 | The index key value is too large to index. | 
| 17287 | $merge cannot modify the same target row more than once. | 
| 17293 | text index option 'textIndexVersion' must be a number | 
| 17302 | This argument value must be greater than or equal to zero. | 
| 17304 | $geoNear requires a valid 'near' point and geo query arguments. | 
| 17308 | $meta is given an unsupported argument. | 
| 17310 | Both operands of $setIsSubset must be arrays. | 
| 17313 | $match with $text is only allowed as the first pipeline stage. | 
| 17320 | createCollection cannot run on a namespace containing a reserved name. | 
| 17385 | Cannot $out to special collection | 
| 17390 | $group does not support inclusion-style expressions | 
| 17419 | The resulting document after update exceeds the maximum allowed size. | 
| 17420 | Document to upsert is larger than 16777216 | 
| 18533 | Format field must be a string | 
| 18534 | Unrecognized field to $dateToString | 
| 18535 | Date format string is invalid because of a trailing percent sign. | 
| 18536 | Invalid $dateToString time format | 
| 18537 | $dateToString cannot format a date component outside the range 0-9999. | 
| 18627 | Missing 'format' parameter to $dateToString | 
| 18628 | Missing 'date' parameter to $dateToString | 
| 18629 | incorrect argument type | 
| 25278 | $geoNear requires a 'distanceField' argument | 
| 26823 | An operation ID cannot be represented within the available bits. | 
| 28539 | The first argument to the distinct command must be a string | 
| 28646 | $Filter expects an object as a parameter | 
| 28647 | Unexpected field to $filter | 
| 28648 | $Filter requires an 'input' field | 
| 28649 | $Filter requires an 'as' field | 
| 28650 | $Filter requires a 'cond' field | 
| 28651 | Array input required | 
| 28656 | $substrBytes: Invalid range, starting index is a UTF-8 continuation byte. | 
| 28657 | $substrBytes: Invalid range, ending index is in the middle of a UTF-8 character. | 
| 28664 | $concatArrays only supports array inputs. | 
| 28667 | An expression such as $slice, $range, or $indexOfArray got the wrong number of arguments. | 
| 28680 | $abs is applied to a value, like the minimum long, that cannot be negated. | 
| 28689 | An operator argument must be an array but a different type was given. | 
| 28690 | Second argument to arrayElemAt must be numeric | 
| 28691 | Second argument to arrayElemAt must be represented by a 32 bit integer | 
| 28714 | $sqrt's argument must be greater than or equal to 0 | 
| 28724 | The first argument to $slice must be an array. | 
| 28725 | The second argument to $slice must be a numeric value. | 
| 28726 | The second argument to $slice must fit in a 32-bit integer. | 
| 28727 | The third argument to $slice must be a number. | 
| 28728 | The third argument to $slice must be a 32-bit integer. | 
| 28729 | $slice's third argument must be a positive 32-bit integer. | 
| 28745 | the $sample stage specification must be an object | 
| 28746 | size argument to $sample must be a number | 
| 28747 | size argument to $sample must not be negative | 
| 28748 | $sample received an unrecognized option. | 
| 28749 | $sample stage must specify a size | 
| 28756 | $log's argument must be numeric. | 
| 28757 | $log requires its base argument to be a numeric value. | 
| 28758 | The argument to $log must be a positive number. | 
| 28759 | $log's base must be a positive number not equal to 1. | 
| 28761 | $log10's argument must be a positive number. | 
| 28762 | $pow's base must be a numeric value. | 
| 28763 | $pow's exponent must be numeric. | 
| 28764 | $pow cannot take a base of 0 and a negative exponent | 
| 28765 | $ceil, $exp, $floor, $ln, or $log10 receives a non-numeric type. | 
| 28766 | $ln requires a positive number argument. | 
| 28812 | Fieldpath is empty | 
| 28818 | Fieldpath does not start with a '$' | 
| 31022 | This operator requires an 'input' parameter to be specified. | 
| 31023 | This operator requires a 'regex' parameter. | 
| 31024 | The operator is given an unknown argument. | 
| 31032 | A field name cannot contain an embedded null byte. | 
| 31034 | A value falls outside the allowed range of [-32768, 32767]. | 
| 31095 | 'isoWeekYear' must evaluate to an integer between 1 and 9999. | 
| 31138 | The $meta value used for sorting is not a valid metadata keyword. | 
| 31170 | An empty object was expected but a non-empty value was provided. | 
| 31249 | A projection path collides with another field in the projection. | 
| 31254 | An inclusion cannot be specified within an exclusion projection. | 
| 31393 | $bsonSize requires a document as input. | 
| 31394 | A positional projection operator cannot appear in the middle of a field path. | 
| 34413 | An invalid operator was used in a geo near query. | 
| 34435 | The argument to $reverseArray must be an array. | 
| 34443 | $range requires a numeric starting value. | 
| 34444 | $range requires a starting value representable as a 32-bit integer. | 
| 34445 | $range requires its ending value to be numeric. | 
| 34446 | $range ending value must fit in a 32-bit integer. | 
| 34447 | $range requires a numeric step value. | 
| 34448 | $range requires a step value representable as a 32-bit integer. | 
| 34449 | $range requires a non-zero step value | 
| 34450 | $substrCP's starting index must be a numeric type. | 
| 34451 | The $substrCP starting index cannot be represented as a 32-bit integer. | 
| 34452 | The length argument to $substrCP is not a numeric type. | 
| 34453 | $substrCP length cannot be represented as a 32-bit integer. | 
| 34454 | $substrCP: length must be a nonnegative integer. | 
| 34455 | $substrCP: the starting index must be nonnegative integer. | 
| 34460 | $zip only supports an object as its argument. | 
| 34461 | $zip inputs must be an array of expressions. | 
| 34462 | The 'defaults' option must be an array of expressions. | 
| 34463 | $zip's useLongestLength option must be a boolean. | 
| 34464 | $zip was given an unknown argument. | 
| 34465 | $zip requires at least one input array | 
| 34466 | cannot specify defaults unless useLongestLength is true | 
| 34467 | defaults and inputs must have the same length | 
| 34468 | $zip receives a non-array expression in its input. | 
| 34471 | $strLenCP requires a string argument. | 
| 34473 | $strLenBytes requires a string argument. | 
| 40060 | $switch requires an object as its argument. | 
| 40061 | $switch requires 'branches' to be an array. | 
| 40062 | $switch requires each branch to be an object. | 
| 40063 | $switch is given an unknown argument within a branch. | 
| 40064 | $switch requires each branch have a 'case' expression. | 
| 40065 | $switch requires each branch have a 'then' expression. | 
| 40066 | $switch could not find a matching branch for an input, and no default was specified. | 
| 40067 | The $switch expression contains an unknown argument. | 
| 40068 | $switch requires at least one branch | 
| 40075 | $reduce requires object | 
| 40076 | Unknown argument to $reduce | 
| 40077 | $reduce requires 'input' | 
| 40078 | $reduce requires 'initialValue' | 
| 40079 | $reduce requires 'in' | 
| 40080 | The input to $reduce must be an array. | 
| 40081 | The operator requires an array as its second argument. | 
| 40085 | $split requires its first argument to evaluate to a string. | 
| 40086 | $split's second argument must evaluate to a string. | 
| 40087 | $split requires a non-empty separator | 
| 40090 | $indexOfArray requires an array as a first argument | 
| 40091 | The first argument to $indexOfBytes is not a string. | 
| 40092 | $indexOfBytes requires a string as its second argument. | 
| 40093 | $indexOfCP requires a string as its first argument. | 
| 40094 | $indexOfCP requires a string as its second argument. | 
| 40096 | $indexOfArray requires integral starting and ending index values. | 
| 40097 | $indexOfArray requires nonnegative numeric start and end indexes. | 
| 40148 | the sortByCount field must be defined as a $-prefixed path or an expression inside an object | 
| 40149 | the sortByCount field must be specified as a string or as an object | 
| 40156 | the count field must be a non-empty string | 
| 40157 | the count field must be a non-empty string | 
| 40158 | the count field cannot be a $-prefixed path | 
| 40159 | the count field cannot contain a null byte | 
| 40160 | the count field cannot contain '.' | 
| 40169 | the $facet specification must be a non-empty object | 
| 40170 | arguments to $facet must be arrays | 
| 40171 | elements of arrays in $facet spec must be non-empty objects | 
| 40172 | sub-pipeline in $facet stage cannot be empty | 
| 40176 | Conflicting fieldnames given | 
| 40177 | $project and $addFields require at least one output field. | 
| 40178 | Cannot exclude fields except '\_id' in an inclusion projection | 
| 40179 | Cannot include fields or reset fields or add computed fields in an exclusion projection | 
| 40180 | $project does not allow an empty object as a field value. | 
| 40181 | Invalid $project :: caused by :: an expression specification must contain exactly one field. | 
| 40183 | A dotted field name cannot be used inside a sub-object. | 
| 40192 | The $bucket 'boundaries' field must have at least 2 values | 
| 40193 | All values in the the 'boundaries' option to $bucket must have the same type | 
| 40194 | The 'boundaries' option to $bucket must be sorted, but elements are not in ascending order | 
| 40195 | The $bucket 'default' field must be a constant expression | 
| 40196 | The $bucket 'output' field must be an object | 
| 40197 | Unrecognized option to $bucket | 
| 40198 | $bucket requires 'groupBy' and 'boundaries' to be specified | 
| 40199 | The $bucket 'default' field must be less than the lowest boundary or greater than or equal to the highest boundary. | 
| 40200 | The $bucket 'boundaries' field must be an array | 
| 40201 | Argument to $bucket stage must be an object | 
| 40202 | The $bucket 'groupBy' field must be defined as a $-prefixed path or an expression | 
| 40203 | The field must be an accumulator object | 
| 40204 | The field name cannot contain '.' | 
| 40205 | The field name cannot be an operator name | 
| 40206 | The accumulator is a unary operator | 
| 40218 | query requires text score metadata, but it is not available | 
| 40228 | $replaceRoot 'newRoot' expression must evaluate to an object. | 
| 40229 | $replaceRoot requires an object as its specification. | 
| 40230 | $replaceRoot only accepts the 'newRoot' option. | 
| 40234 | The $group field must be an accumulator object. | 
| 40235 | A field name cannot contain a '.' character. | 
| 40236 | Field names may not start with '$' | 
| 40237 | This accumulator is a unary operator and takes a single argument. | 
| 40239 | The $bucketAuto 'groupBy' field must be defined as a $-prefixed path or an expression object | 
| 40240 | The argument to $bucketAuto must be an object | 
| 40241 | The $bucketAuto 'buckets' field must be a numeric value | 
| 40242 | The $bucketAuto 'buckets' field must be representable as a 32-bit integer | 
| 40243 | The $bucketAuto 'buckets' field must be greater than 0 | 
| 40244 | The $bucketAuto 'output' field must be an object | 
| 40245 | Unrecognized option to $bucketAuto | 
| 40246 | $bucketAuto requires 'groupBy' and 'buckets' to be specified | 
| 40257 | Unknown rounding granularity | 
| 40258 | $bucketAuto can specify a 'granularity' with numeric boundaries only | 
| 40260 | $bucketAuto can specify a 'granularity' with non-negative numbers only, but found a negative number | 
| 40261 | The $bucketAuto 'granularity' field must be a string | 
| 40272 | The $addFields stage specification must be an object. | 
| 40319 | the $lookup stage specification must be an object | 
| 40320 | missing 'from' option to $lookup stage specification | 
| 40321 | 'from' option to $lookup must be a string | 
| 40322 | invalid $lookup namespace | 
| 40323 | A pipeline stage specification object must contain exactly one field. | 
| 40324 | The pipeline contains an unrecognized stage name. | 
| 40331 | This aggregation stage is not allowed inside a $facet pipeline. | 
| 40352 | $project field paths cannot be empty strings. | 
| 40353 | A field path must not end with a '.'. | 
| 40386 | $arrayToObject requires an array input. | 
| 40390 | $objectToArray requires a document as input. | 
| 40391 | $arrayToObject requires a consistent input format. Elements mustall be arrays or all be objects. Object was detected, now found: array | 
| 40392 | $arrayToObject requires objects with exactly the keys 'k' and 'v'. | 
| 40393 | $arrayToObject requires an object with keys 'k' and 'v'. Missing either or both keys | 
| 40394 | $arrayToObject requires objects with string 'k' keys and 'v' values. | 
| 40395 | $arrayToObject requires key-value pairs whose keys are strings. | 
| 40396 | $arrayToObject requires a consistent input format. Elements mustall be arrays or all be objects. Array was detected, now found: object | 
| 40397 | $arrayToObject requires an array of two-element arrays. | 
| 40398 | $arrayToObject is given an input of an unrecognized type or format. | 
| 40400 | $mergeObjects requires all inputs to be objects. | 
| 40414 | A required command field is missing or failed validation. | 
| 40415 | The command contains an unrecognized field. | 
| 40422 | A BSON array field name has an invalid value. | 
| 40485 | An unrecognized time zone identifier was supplied. | 
| 40489 | $dateFromParts does not allow mixing regular calendar fields with ISO week date fields | 
| 40515 | A $dateFromParts argument does not evaluate to an integer number. | 
| 40516 | $dateFromParts requires either 'year' or 'isoWeekYear' to be present | 
| 40517 | The 'timezone' option must evaluate to a string for date operators. | 
| 40518 | $dateFromParts or $dateToParts got an unrecognized or wrongly typed parameter. | 
| 40519 | $dateFromParts only supports an object as its argument. | 
| 40520 | $dateToParts was given an unrecognized parameter. | 
| 40522 | $dateToParts requires an object argument with a 'date' parameter. | 
| 40523 | $dateFromParts 'year' must be an integer in the range 1 to 9999. | 
| 40525 | $dateFromParts ISO week/day values are out of range or missing required fields. | 
| 40533 | The timezone argument must be a string. | 
| 40535 | An unrecognized option was supplied to the stage or expression. | 
| 40536 | The expression accepts exactly one argument when given an array. | 
| 40539 | The required 'date' argument to a date operator is missing. | 
| 40540 | $dateFromString only supports an object as an argument | 
| 40541 | $dateFromString received an unrecognized argument. | 
| 40542 | Missing 'dateString' parameter to $dateFromString | 
| 40543 | $dateFromString requires that 'dateString' be a string. | 
| 40545 | The date/time string is incomplete, with required elements missing. | 
| 40551 | you cannot pass in a date/time string with time zone information together with a timezone argument | 
| 40553 | $dateFromString cannot parse the given date string. | 
| 40554 | you cannot pass in a date/time string with GMT offset together with a timezone argument | 
| 40575 | $changeStream 'fullDocument' must be "default" or "updateLookup". | 
| 40600 | $out cannot be used within a $facet stage. | 
| 40601 | $out and $merge can only be the final stage in the pipeline. | 
| 40602 | A stage like $changeStream or $geoNear is not the first in the pipeline. | 
| 40603 | $geoNear was not the first stage in the pipeline after optimization. Is optimization disabled or inhibited? | 
| 40647 | The change stream resume token has a missing or wrong-typed \_data field. | 
| 40674 | Only one type of resume option is allowed, but multiple were found. | 
| 50001 | autoIndexId:false is not allowed for the specified collection. | 
| 50694 | This operator was given an unknown argument. | 
| 50695 | This operator requires an 'input' field. | 
| 50696 | The operator only supports an object as its argument. | 
| 50699 | This expression operator requires its input to be a string. | 
| 50700 | The 'chars' argument must be a string. | 
| 50736 | getMore cannot run in a session on a cursor not created in a session. | 
| 50737 | Running getMore on a session-created cursor requires an lsid to be supplied. | 
| 50752 | The $substrBytes starting index is negative. | 
| 50808 | $changeStream stage expects a document as its argument. | 
| 51024 | The collation 'strength' value must be 5 or less. | 
| 51047 | This operator or stage is not allowed within a $lookup sub-pipeline. | 
| 51075 | Cannot set options in both $regex and $options | 
| 51076 | Insufficient memory to build the vector index for the specified number of lists. | 
| 51078 | Could not find index name. | 
| 51079 | Latency Stats are not supported | 
| 51091 | A regular expression is invalid or badly formed. | 
| 51103 | The operator expects an object of named arguments but received another type. | 
| 51104 | The operator requires its 'input' argument to be a string. | 
| 51105 | An operator's 'regex' argument is not a string or regex type. | 
| 51106 | An operator requires its 'options' parameter to be a string. | 
| 51107 | $regex options cannot be specified in both the 'regex' and 'options' fields. | 
| 51108 | Regular expression options contain an invalid flag or embedded null byte. | 
| 51109 | A regular expression cannot contain an embedded null byte. | 
| 51110 | Regular expression options cannot contain an embedded null byte. | 
| 51111 | The regular expression supplied to this operator is invalid. | 
| 51151 | The size of buffer to store output exceeded the data type limit | 
| 51156 | A regular expression failed to execute in $regex during evaluation. | 
| 51270 | An empty sub-projection object is not a valid projection value. | 
| 51272 | Syntax error: $projection requires at least one output field. | 
| 51744 | The operator requires 'replacement' to be a string. | 
| 51745 | The operator requires its 'find' argument to be a string. | 
| 51746 | An operator's 'input' argument is not a string. | 
| 51747 | An operator requires a 'replacement' parameter. | 
| 51748 | This operator requires a 'find' parameter. | 
| 51749 | This operator requires an 'input' parameter. | 
| 51750 | An aggregation operator received an unknown argument. | 
| 100003 | Internal system error while processing the optimized query path | 
| 100005 | A configured limit, such as collections, custom roles, or privileges, has been exceeded. | 
| 100006 | The maximum number of allowed users has been exceeded. | 
| 3040501 | $rand does not currently accept arguments | 
| 3041701 | $getField received an unknown argument in $project. | 
| 3041702 | Invalid $project :: caused by :: $getField requires 'field' to be specified | 
| 3041703 | Invalid $project :: caused by :: $getField requires 'input' to be specified | 
| 3041704 | $getField requires the 'field' argument to evaluate to a string. | 
| 4161100 | $setField and $unsetField only support an object as their argument. | 
| 4161101 | $setField or $unsetField was given an unknown argument. | 
| 4161102 | $setField and $unsetField require a 'field' to be specified. | 
| 4161103 | Invalid $project :: caused by :: $setField requires 'value' to be specified | 
| 4161105 | $setField or $unsetField requires 'input' to evaluate to an object. | 
| 4161106 | $setField and $unsetField require 'field' to evaluate to a constant. | 
| 4161107 | $setField or $unsetField requires 'field' to evaluate to a string. | 
| 4161108 | $project disallows a field path reference here; use {$literal: ...} instead. | 
| 4161109 | $setField and $unsetField require an 'input' field to be specified. | 
| 4662500 | The command contains an unrecognized field. | 
| 4862100 | The fully qualified namespace exceeds the maximum allowed length. | 
| 5166301 | $dateDiff only supports an object as its argument | 
| 5166302 | $dateDiff was given an unrecognized argument. | 
| 5166303 | Missing 'startDate' parameter to $dateDiff | 
| 5166304 | Missing 'endDate' parameter to $dateDiff | 
| 5166305 | Missing 'unit' parameter to $dateDiff | 
| 5166307 | A $dateDiff argument is not a date. | 
| 5166308 | $dateDiff overflowed while computing the date difference. | 
| 5166400 | $dateAdd and $dateSubtract require their argument to be an object. | 
| 5166401 | $dateAdd or $dateSubtract got an unrecognized argument. | 
| 5166402 | $dateAdd or $dateSubtract require startDate, unit, and amount to be present. | 
| 5166403 | $dateAdd requires startDate to be convertible to a date | 
| 5166404 | $dateAdd expects string defining the time unit | 
| 5166405 | $dateAdd expects integer amount of time units | 
| 5166406 | dateAdd overflowed | 
| 5166503 | An unknown time unit value was provided. | 
| 5439002 | $dateTrunc overflowed while computing the truncated date. | 
| 5439006 | dateTrunc unsupported binSize value | 
| 5439007 | $dateTrunc only supports an object as its argument | 
| 5439008 | Unrecognized $dateTrunc argument; expected date, unit, binSize, timezone, startOfWeek. | 
| 5439009 | Missing 'date' parameter to $dateTrunc | 
| 5439010 | Missing 'unit' parameter to $dateTrunc | 
| 5439012 | $dateTrunc requires 'date' to be a date. | 
| 5439013 | $dateDiff and $dateTrunc require 'unit' to be a string. | 
| 5439014 | $dateDiff and $dateTrunc 'unit' value is not a recognized time unit. | 
| 5439015 | $dateDiff or $dateTrunc require 'startOfWeek' to be a string. | 
| 5439016 | $dateDiff or $dateTrunc 'startOfWeek' value is not a valid day of the week. | 
| 5439017 | $dateTrunc requires 'binSize' to be a 64-bit integer. | 
| 5439018 | $dateTrunc requires 'binSize' to be greater than 0. | 
| 5447000 | The $collStats stage must be a nested object. | 
| 5626500 | $geoNear, $near, and $nearSphere are not allowed in this context, as these operators require sorting geospatial data. If you do not need sort, consider using $geoWithin instead. | 
| 5654600 | $project does not allow a field path reference in this context. | 
| 5654601 | Invalid $project :: caused by :: $getField requires 'field' to evaluate to a constant, but got a non-constant argument | 
| 5654602 | $getField requires 'field' to evaluate to a string. | 
| 5733415 | can't $mod by zero | 
| 5860400 | $geoNear requires a 'near' argument | 
| 5887502 | All operands of $setEquals must be arrays. | 
| 5911200 | PlanExecutor error during aggregation :: caused by :: $mergeObjects only supports objects | 
| 5976500 | $dateAdd was given an invalid 'amount' parameter value. | 
| 6045000 | $dateSubtract was given an invalid 'amount' parameter value. | 
| 7158303 | $switch found no matching branch for the input and no default was specified. |