# ValidationWarning
<a name="API_ValidationWarning"></a>

The error codes and error messages that are returned for the parameters or parameter combinations that are not valid when a new launch template or new version of a launch template is created.

## Contents
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 ** ErrorSet.N **   
The error codes and error messages.  
Type: Array of [ValidationError](API_ValidationError.md) objects  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/ValidationWarning) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/ValidationWarning) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/ValidationWarning)