Getting module not found error in project_creation

When I try to use the project creation template which is on github, even after changing the values in config.yaml I am getting following error.

location: /deployments/projectcreation000/manifests/manifest-1534790908361 message: 'Manifest expansion encountered the following errors: Error compiling Python code: No module named apis Resource: project.py Resource: config'

you can find the repo link here : https://github.com/GoogleCloudPlatform/deploymentmanager-samples/tree/master/examples/v2/project_creation

Please help as I need it for production workflow. I have tried "sudo pip install apis" in Cloud Shell but it does not help, even after successful installation of apis module.