gettiing below error while deploying the function

botocore.exceptions.ClientError: An error occurred (InvalidParameterValueException) when calling the CreateFunction operation: The role defi
ned for the function cannot be assumed by Lambda.

deployment fails after this message
Starting new HTTPS connection (1): lambda.us-east-1.amazonaws.com
Creating your new Lambda function
Starting new HTTPS connection (1): sts.amazonaws.com
Starting new HTTPS connection (1): lambda.us-east-1.amazonaws.com