C#•7mo ago

CMake to generate C# project and compile it

Hi All, I am using CMake for C# project. I am compiling with target framework as netstandard2.0. Following is the issue I am encountering when compiling the project using CMake. Severity Code Description Project File Line Suppression State Details Error NU1202 Package abc.xyz 23.2.347.1 is not compatible with net40 (.NETFramework,Version=v4.0). Package abc.xyz 23.2.347.1 supports: net48 (.NETFramework,Version=v4.8)
What could be the reason for this when I am targetting for .netstandard2.0? This nuget package abc.xyz is also supported on the .netstandard2.0, then what is exactly the problem ?

18 Replies

tera•7mo ago

what package

sameerpjoshiOP•7mo ago

This package for now renamed to "abc.xyz" has both support of .netframework 4.8 and .netstandard2.0

tera•7mo ago

unnecessary hiding detail only makes harder for someone to help

sameerpjoshiOP•7mo ago

The package is internal to our company, so it cant be shared. Its a nuget package internally used in company. The issue is occurring for many other packages as well which support .netstandard2.0 . It seems some issue with csproj file generated that its going to find some other non required version like net40 for the package targets. Not sure where its getting this net40 from

SleepWellPupper•7mo ago

Wha are you using CMake and not MSBuild?

canton7•7mo ago

Does the error happen when you compile normally with VS / dotnet / msbuild? Or is it something cmake-specific?

sameerpjoshiOP•7mo ago

I have a mix of C++ and C# projects in my solution which I wanted to build cross platform Linux and Windows. This is the reason to use CMake. If I use msbuild directly , it works fine. I have used WSL for C++ compilation as well for Linux using MSBuild. However, not been able to make it work with CMake. CMake could give me a single way to have the files listed and projects created automatically during runtime and able to build it cross platform. CMake also triggers msbuild while building and when its at the first step of determining projects to restore, we get this error. It seems the msbuild that gets triggered through CMake is using the Csproj file for finding the dependencies. Not sure why its looking for .NET4.0 version of those dependencies when the target framework specified is .Netstandard2.0.

canton7•7mo ago

Right, so the issue is something to do with cmake, not msbuild. You haven't shared any of the details of how you've configured cmake, so it's impossible for us to help

sameerpjoshiOP•7mo ago

cmake_minimum_required(VERSION 3.10)
project(MyProject CSharp)
# Add your C# source files
file(GLOB_RECURSE CS_FILES "*.cs")
add_library(MyProject SHARED ${CS_FILES})
set_target_properties(MyProject PROPERTIES
    DOTNET_TARGET_FRAMEWORK "netstandard2.0"
)

set_property(TARGET MyProject
    PROPERTY VS_PACKAGE_REFERENCES "inContact.DataRepositories_23.2.*;Microsoft.Windows.Compatibility_2.0.1;inContact.NaturalCallingInterfaces_23.2.*;Newtonsoft.Json_13.0.1;System.Configuration.ConfigurationManager_4.7.0;System.Threading.Channels_7.0.0"
)

cmake_minimum_required(VERSION 3.10)
project(MyProject CSharp)
# Add your C# source files
file(GLOB_RECURSE CS_FILES "*.cs")
add_library(MyProject SHARED ${CS_FILES})
set_target_properties(MyProject PROPERTIES
    DOTNET_TARGET_FRAMEWORK "netstandard2.0"
)

set_property(TARGET MyProject
    PROPERTY VS_PACKAGE_REFERENCES "inContact.DataRepositories_23.2.*;Microsoft.Windows.Compatibility_2.0.1;inContact.NaturalCallingInterfaces_23.2.*;Newtonsoft.Json_13.0.1;System.Configuration.ConfigurationManager_4.7.0;System.Threading.Channels_7.0.0"
)

This is the CMakeLists.txt file

sameerpjoshiOP•7mo ago

message.txt

sameerpjoshiOP•7mo ago

I have attached the CMakeLists.txt and CMakeSettings.json file

canton7•7mo ago

Why are you trying to set the package references from cmake?

sameerpjoshiOP•7mo ago

How do I set the nuget package references otherwise when I want to build the C# project using CMake?

canton7•7mo ago

Can you see the generated csproj?

sameerpjoshiOP•7mo ago

yes I see the generated csproj successfully but the build is failing because of the above errors I mentioned

canton7•7mo ago

Can you post the generated csproj?

sameerpjoshiOP•7mo ago

The csproj generated has following entry. Not sure how and where this entry is getting added from <Compile Include="C:\Users\xxxx\source\repos\abcde\xyzc\src\MRC\MRCDNC\out\build\x64-Debug\obj\x64\Debug.NETFramework,Version=v4.0.AssemblyAttributes.cs"> <Link>out\build\x64-Debug\obj\x64\Debug.NETFramework,Version=v4.0.AssemblyAttributes.cs</Link> </Compile>

canton7•7mo ago

Right, I think that shows that this is firmly in the realms of CMake -- nothing to do with any of the .NET tooling. You should probably ask CMake, e.g. on https://discourse.cmake.org

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