<ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
<ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
<ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
<ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
<ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
<ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
- Open MonoDevelop and start a new project/solution.
- Add NuGet package `Grpc` as a dependency (Project -> Add NuGet packages).
That will also pull all the transitive dependencies (including the gRPC native library that
gRPC C# is using internally).
- NOTE: Currently, there are no debian packages for the latest version Protocol Buffers compiler (_protoc_)
and the gRPC _protoc_ plugin. You can install them using [gRPC Linuxbrew instructions][].
- NOTE: gRPC C# doesn't have a good story yet for shipping precompiled Linux version of Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin. You can install them using [gRPC Linuxbrew instructions][].
**Mac OS X**
- WARNING: As of now gRPC C# only works on 64bit version of Mono (because we don't compile
the native extension for C# in 32bit mode yet). That means your development experience
with Xamarin Studio on MacOS will not be great, as you won't be able to run your
code directly from Xamarin Studio (which requires 32bit version of Mono).
- Install [homebrew][]. Run the following command to install gRPC C# native dependencies.
```sh
$ curl -fsSL https://goo.gl/getgrpc | bash -
```
This will download and run the [gRPC install script][], then install the latest version of gRPC C core and native C# extension.
It also installs Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin for C#.
- Install 64-bit version of mono with command `brew install mono`.
- Open Xamarin Studio and start a new project/solution.
- Add NuGet package `Grpc` as a dependency (Project -> Add NuGet packages).
That will also pull all the transitive dependencies (including the gRPC native library that
gRPC C# is using internally).
- *You will be able to build your project in Xamarin Studio, but to run or test it,
you will need to run it under 64-bit version of Mono.*
- NOTE: gRPC C# doesn't have a good story yet for shipping precompiled Mac OS X version of Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin. You can install them using [gRPC Homebrew instructions][].
BUILD FROM SOURCE
-----------------
@ -94,7 +56,7 @@ If you are a user of gRPC C#, go to Usage section above.
**Windows**
- The grpc_csharp_ext native library needs to be built so you can build the gRPC C# solution. You can
either build the native solution in `vsprojects/grpc.sln` from Visual Studio manually, or you can use
either build the native solution in `vsprojects/grpc_csharp_ext.sln` from Visual Studio manually, or you can use
a convenience batch script that builds everything for you.
```
@ -102,30 +64,28 @@ If you are a user of gRPC C#, go to Usage section above.
> buildall.bat
```
- Open Grpc.sln using Visual Studio. NuGet dependencies will be restored
upon build (you need to have NuGet add-in installed).
- Open Grpc.sln using Visual Studio.
**Linux**
- The grpc_csharp_ext native library needs to be built so you can build the gRPC C# solution:
```sh
$ sudo apt-get install mono-devel
$ sudo apt-get install nunit nunit-console
# from the gRPC repository root
$ make CONFIG=dbg grpc_csharp_ext
```
You can use older versions of MonoDevelop, but then you might need to restore
NuGet dependencies manually (by `nuget restore`), because older versions of MonoDevelop
don't support NuGet add-in.
- Use MonoDevelop to open the solution Grpc.sln
**Mac OS X**
- Compile and install the gRPC C# extension library (that will be used via
P/Invoke from C#).
- The grpc_csharp_ext native library needs to be built so you can build the gRPC C# solution.
### Problem: Unable to load DLL 'grpc_csharp_ext.dll'
Internally, gRPC C# uses a native library written in C (gRPC C core) and invokes its functionality via P/Invoke. `grpc_csharp_ext` library is a native extension library that facilitates this by wrapping some C core API into a form that's more digestible for P/Invoke. If you get the above error, it means that the native dependencies could not be located by the C# runtime (or they are incompatible with the current runtime, so they could not be loaded). The solution to this is environment specific.
- If you are developing on Windows in Visual Studio, the `grpc_csharp_ext.dll` that is shipped by gRPC nuget packages should be automatically copied to your build destination folder once you build. By adjusting project properties in your VS project file, you can influence which exact configuration of `grpc_csharp_ext.dll` will be used (based on VS version, bitness, debug/release configuration).
- If you are running your application that is using gRPC on Windows machine that doesn't have Visual Studio installed, you might need to install [Visual C++ 2013 redistributable](https://www.microsoft.com/en-us/download/details.aspx?id=40784) that contains some system .dll libraries that `grpc_csharp_ext.dll` depends on (see #905 for more details).
- On Linux (or Docker), you need to first install gRPC C core and `libgrpc_csharp_ext.so` shared libraries.
See [How to Use](#how-to-use) section for details how to install it.
Installation on a machine where your application is going to be deployed is no different.
- On Mac, you need to first install gRPC C core and `libgrpc_csharp_ext.dylib` shared libraries using Homebrew. See above for installation instruction.
Installation on a machine where your application is going to be deployed is no different.
Internally, gRPC C# uses a native library written in C (gRPC C core) and invokes its functionality via P/Invoke. `grpc_csharp_ext` library is a native extension library that facilitates this by wrapping some C core API into a form that's more digestible for P/Invoke.
- Possible cause for the problem is that the `grpc_csharp_ext` library is installed, but it has different bitness (32/64bit) than your C# runtime (in case you are using mono) or C# application.
Prior to version 0.13, installing `grpc_csharp_ext` was required to make gRPC work on Linux and MacOS. Starting with version 0.13, we have improved the packaging story significantly and precompiled versions of the native library for all supported platforms are now shipped with the NuGet package. Just installing the `Grpc` NuGet package should be the only step needed to use gRPC C#, regardless of your platform (Windows, Linux or Mac) and the bitness (32 or 64bit).
Julien Boeuf
9 years ago