This is the command that I am using. I have followed the steps in https://developers.google.com/appengine/docs/python/tools/uploadingdata. When I use the same command for the same application that I have hosted on the web, the command works and I can see the data in the datastore. But the same command is not working for my local copy of the application. The error I am getting is:
HTTPError: HTTP Error 404: Not Found
[ERROR ] Authentication Failed: Incorrect credentials or unsupported authentication type (e.g. OpenId).
But I am not really using any credentials to host it locally. Please help.
./appcfg.py upload_data --application=say_hello --config_file=bulkloader.yaml --filename=output.csv --kind=Dashboard --url=http:hostname:8080/_ah/remote_api