# RuntimeVersionConfig


The ARN of the runtime and any errors that occured.

## Contents


 ** Error **   <a name="lambda-Type-RuntimeVersionConfig-Error"></a>
Error response when Lambda is unable to retrieve the runtime version for a function.  
Type: [RuntimeVersionError](API_RuntimeVersionError.md) object  
Required: No

 ** RuntimeVersionArn **   <a name="lambda-Type-RuntimeVersionConfig-RuntimeVersionArn"></a>
The ARN of the runtime version you want the function to use.  
Type: String  
Length Constraints: Minimum length of 26. Maximum length of 2048.  
Pattern: `arn:(aws[a-zA-Z-]*):lambda:[a-z]{2}((-gov)|(-iso(b?)))?-[a-z]+-\d{1}::runtime:.+`   
Required: No

## See Also


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/lambda-2015-03-31/RuntimeVersionConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/lambda-2015-03-31/RuntimeVersionConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/RuntimeVersionConfig)