# ResourceNotFoundException
<a name="API_ResourceNotFoundException"></a>

The operation tried to access a keyspace, table, or type that doesn't exist. The resource might not be specified correctly, or its status might not be `ACTIVE`.

HTTP Status Code returned: 400

## Contents
<a name="API_ResourceNotFoundException_Contents"></a>

 ** message **   <a name="keyspaces-Type-ResourceNotFoundException-message"></a>
The specified resource was not found. Verify the resource identifier and ensure the resource exists and is in an ACTIVE state.  
Type: String  
Required: No

 ** resourceArn **   <a name="keyspaces-Type-ResourceNotFoundException-resourceArn"></a>
The unique identifier in the format of Amazon Resource Name (ARN) for the resource couldn't be found.  
Type: String  
Length Constraints: Minimum length of 20. Maximum length of 1000.  
Pattern: `arn:(aws[a-zA-Z0-9-]*):cassandra:.+.*`   
Required: No

## See Also
<a name="API_ResourceNotFoundException_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/keyspaces-2022-02-10/ResourceNotFoundException)