问题
My .Netcore 2.0 project can target net471.
But when I upgraded to .NET 2.1, I can't retarget net471 or net472
Can I retarget in the latest version of .the NET core?
Severity Code Description Project File Line Suppression State
Error NU1202 Package Microsoft.AspNetCore.App 2.1.0 is not compatible with net471 (.NETFramework,Version=v4.7.1). Package Microsoft.AspNetCore.App 2.1.0 supports: netcoreapp2.1 (.NETCoreApp,Version=v2.1)
and
Severity Code Description Project File Line Suppression State
Error NU1202 Package Microsoft.AspNetCore.App 2.1.0 is not compatible with net472 (.NETFramework,Version=v4.7.2). Package Microsoft.AspNetCore.App 2.1.0 supports: netcoreapp2.1 (.NETCoreApp,Version=v2.1)
回答1:
It looks like Microsoft.AspNetCore.App and Microsoft.AspNetCore.All packages only work with the netcoreapp2.0 or netcoreapp2.1 version.
Wanting to target .NET Framework i.e. net471, net472, you have to remove these packages and manually add the references.
In my case, I removed Microsoft.AspNetCore.App and added references as below.
<PackageReference Include="Microsoft.AspNetCore" Version="2.1.1" />
<PackageReference Include="Microsoft.AspNetCore.Hosting.WindowsServices" Version="2.1.1" />
<PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.1.1" />
<PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.1.1" />
<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.1.1" />
<PackageReference Include="Microsoft.Extensions.Logging.EventLog" Version="2.1.1" />
<PackageReference Include="Microsoft.Extensions.Options" Version="2.1.1" />
来源：https://stackoverflow.com/questions/50920635/re-target-net-core-to-net471-net-472