An error occurred (UnrecognizedClientException) when calling the CreateFunction operation: The security token included in the request is invalid.

Hi everyone,

I ran into the following error today while attempting to create a Lambda function using the CLI:

An error occurred (UnrecognizedClientException) when calling the CreateFunction operation: The security token included in the request is invalid.

The first thing to check is that your aws config is setup correctly. For me this is under c:userschris-pc.aws.

If that looks fine, double check that the associated user has the correct rights by viewing the IAM page in the server console: https://console.aws.amazon.com/iam/home

Finally, ensure that the user has programmatic access and that the keys match those in your config.

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