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Document async gRPC issue and solution for Unity #40

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Document async gRPC issue and solution for Unity
xichenhe Aug 26, 2025
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Format code block in Troubleshooting.rst
xichenhe Aug 26, 2025
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Expand Up @@ -130,3 +130,9 @@ Likely Workarounds Until the Release on PyPI:
For further information, refer to the related discussion on GitHub: `Issue #118 <https://github.com/mcfletch/pyopengl/issues/118#issuecomment-2342054510>`_.



Issue:
*******
When running async gRPC on the Unity client, the console reports ```(Status(StatusCode = "Cancelled", Detail = "No grpc-status found on response."))``` even though the Python server is working correctly.

**Solution:** This is usually caused by conflicting gRPC libraries—PhysioLabXR’s bundled gRPC plugin and additional gRPC packages installed via NuGet for Unity. Uninstall the NuGet-installed gRPC packages and keep only the PhysioLabXR plugin: go to ```Unity -> NuGet -> Manage NuGet Packages -> Installed``` and remove all gRPC-related packages. Restart Unity and try again.