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Add troubleshooting documentation for WPF (#14780)

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James Newton-King 2019-10-04 09:17:26 +13:00 committed by GitHub
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aspnetcore/grpc/troubleshoot.md
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@ -146,4 +146,20 @@ A gRPC client app making gRPC calls only needs the concrete client generated:
</ItemGroup>
```
[!INCLUDE[](~/includes/gRPCazure.md)]
## WPF projects unable to generated gRPC C# assets from *\*.proto* files
WPF projects have a [known issue](https://github.com/dotnet/wpf/issues/810) that prevents gRPC code generation from working correctly. Any gRPC types generated in a WPF project by referencing `Grpc.Tools` and *.proto* files will create compilation errors when used:
> error CS0246: The type or namespace name 'MyGrpcServices' could not be found (are you missing a using directive or an assembly reference?)
You can workaround this issue by:
1. Create a new .NET Core class library project.
2. In the new project, add references to enable [C# code generation from *\*.proto* files](xref:grpc/basics#generated-c-assets):
* Add a package reference to [Grpc.Tools](https://www.nuget.org/packages/Grpc.Tools/) package.
* Add *\*.proto* files to the `<Protobuf>` item group.
3. In the WPF application, add a reference to the new project.
The WPF application can use the gRPC generated types from the new class library project.
[!INCLUDE[](~/includes/gRPCazure.md)]