CODEWITHSUNDEEP
pythongoogle-app-enginegoogle-cloud-platformgoogle-cloud-endpointsgoogle-cloud-endpoints-v2
Sagar Kanabar
Sagar Kanabar

Reputation: 464

Google cloud endpoint: migrating v1 to v2 getting error in discovery call

We are migrating google cloud endpoint v1 to v2 using following google document.

https://cloud.google.com/endpoints/docs/frameworks/python/migrating

After deployment of migrated version getting below error.

"RuntimeError: A tasklet should not yield a plain value"

Here is full traceback.

Traceback (most recent call last):
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 267, in Handle
    result = handler(dict(self._environ), self._StartResponse)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/ext/ndb/tasklets.py", line 1108, in add_context_wrapper
    return synctaskletfunc(*args, **kwds)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/ext/ndb/tasklets.py", line 1087, in synctasklet_wrapper
    return taskletfunc(*args, **kwds).get_result()
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/ext/ndb/tasklets.py", line 383, in get_result
    self.check_success()
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/ext/ndb/tasklets.py", line 378, in check_success
    self.wait()
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/ext/ndb/tasklets.py", line 362, in wait
    if not ev.run1():
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/ext/ndb/eventloop.py", line 268, in run1
    delay = self.run0()
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/ext/ndb/eventloop.py", line 230, in run0
    callback(*args, **kwds)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/7894e0c59273b2b7/python27/python27_lib/versions/1/google/appengine/ext/ndb/tasklets.py", line 509, in _help_tasklet_along
    '%.200s yielded %.200r' % (info, value))
RuntimeError: A tasklet should not yield a plain value: initial generator __call__(endpoints_dispatcher.py:128) yielded '{\n  "auth": {\n    "oauth2": {\n      "scopes": {}\n    }\n  },\n  "basePath": "<APINAME>",\n  "baseUrl": "https://<<PROJECTNAME>>.appspot.com/<APINAME>",\n  "batchPath": "batch"

I already tried few things like, i know some of the tries are not logical but though tried.

Is any one face similar issue pls help me.

Upvotes: 3

Views: 208

Answers (1)

Rose Davidson
Rose Davidson

Reputation: 652

This is caused by the ndb library being incompatible with the WSGI specification. You should report this to the support team for that library.

Upvotes: 4

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