Can anyone tell me why this is happening:
$ dev_appserver.py nmg_server
INFO 2017-07-08 17:15:37,369 application_configuration.py:461] No version specified. Generated version id: 20170708t171537
WARNING 2017-07-08 17:15:37,369 application_configuration.py:166] The Managed VMs runtime is deprecated, please consider migrating your application to use the Flexible runtime. See https://cloud.google.com/appengine/docs/flexible/python/migrating for more details.
INFO 2017-07-08 17:15:37,472 devappserver2.py:116] Skipping SDK update check.
INFO 2017-07-08 17:15:37,513 api_server.py:312] Starting API server at: http://localhost:54096
INFO 2017-07-08 17:15:37,517 api_server.py:938] Applying all pending transactions and saving the datastore
INFO 2017-07-08 17:15:37,517 api_server.py:941] Saving search indexes
Traceback (most recent call last):
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 103, in <module>
_run_file(__file__, globals())
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 97, in _run_file
execfile(_PATHS.script_file(script_name), globals_)
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 381, in <module>
main()
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 369, in main
dev_server.start(options)
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 196, in start
options.api_host, apiserver.port, wsgi_request_info_, options.grpc_apis)
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/dispatcher.py", line 223, in start
_module.start()
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 1647, in start
self._add_instance()
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 1799, in _add_instance
expect_ready_request=True)
File "/Users/dgaedcke/gcloud_tools/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/go_runtime.py", line 189, in new_instance
self._go_application.maybe_build()):
TypeError: maybe_build() takes exactly 2 arguments (1 given)
I'm trying to run my server for testing on localhost and it keeps exiting with this error