py-executor pod does NOT run

APP_PORT environment variable is not set, using default.
BASIC_AUTH environment variable is not set, using default.
Traceback (most recent call last):
  File "server.py", line 28, in <module>
    import proto.CommandExecutor_pb2_grpc as CommandExecutor_pb2_grpc
  File "/opt/app/onap/python/proto/CommandExecutor_pb2_grpc.py", line 4, in <module>
    import CommandExecutor_pb2 as CommandExecutor__pb2
ModuleNotFoundError: No module named 'CommandExecutor_pb2'