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using "topic.exists()" raises "TypeError: Channel's second argument must be a ChannelCredentials"

See original GitHub issue

Environment details

OS: Ubuntu 16.04
Node.js version: 9.3.0
npm version: 5.5.1
@google-cloud/pubsub version: 0.16.1

Steps to reproduce

Setup PubSub emulator and set PUBSUB_EMULATOR_HOST
run topic.exists()

This issue does not happen with PubSub version 0.15.0, when upgrading to 0.16.* and calling topic.exists() the following error occur:

[0] (node:48) UnhandledPromiseRejectionWarning: TypeError: Channel's second argument must be a ChannelCredentials
[0]     at ServiceClient.Client (/usr/src/app/node_modules/google-gax/node_modules/grpc/src/client.js:472:19)
[0]     at new ServiceClient (/usr/src/app/node_modules/google-gax/node_modules/grpc/src/client.js:884:12)
[0]     at /usr/src/app/node_modules/google-gax/lib/grpc.js:245:12
[0]     at &lt;anonymous&gt;
[0]     at process._tickCallback (internal/process/next_tick.js:160:7)
[0]     at Function.Module.runMain (module.js:703:11)
[0]     at startup (bootstrap_node.js:194:16)
[0]     at bootstrap_node.js:618:3
[0] (node:48) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
[0] (node:48) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Thanks!

Issue Analytics

State:
Created 6 years ago
Comments:12 (3 by maintainers)

Top GitHub Comments

2reactions

stephenpluspluscommented, Jan 9, 2018

This sounds like a problem with multiple versions of gRPC loading. I believe I’ve found the issue, and will be sending a PR soon.

2reactions

fardogcommented, Jan 6, 2018

I’m seeing this issue as well; an npm cache clean --force did not change the behavior, nor did whacking the package-lock.json and regenerating it from an npm install unfortunately.

{ '<redacted>': '1.2.0',
  npm: '5.5.1',
  ares: '1.10.1-DEV',
  cldr: '31.0.1',
  http_parser: '2.7.0',
  icu: '59.1',
  modules: '57',
  nghttp2: '1.25.0',
  node: '8.9.1',
  openssl: '1.0.2m',
  tz: '2017b',
  unicode: '9.0',
  uv: '1.15.0',
  v8: '6.1.534.47',
  zlib: '1.2.11' }

Let me know if i can provide any additional information.

Edit: the installation of pubsub was into a project that hasn’t previously had any google cloud libraries intalled in it; it was installed with an npm install @google-cloud/pubsub which got me version 0.16.1; for the sake of getting things rolling, I tried an older version by specifying 0.15.0 and that version is working fine against the emulator.

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