While building code pipeline encountered error

Question

When I create cloudformation stack for codepipeline, it fails and the error message is:

Phase context status code: COMMAND_EXECUTION_ERROR Message: Error while executing command: aws cloudformation deploy --stack-name myGlueStack --template-file ./cloudformation/glue-workflow-stack.yml --capabilities CAPABILITY_NAMED_IAM --no-fail-on-empty-changeset --region $AWS_REGION. Reason: exit status 255

Any reason for this issue?