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When targeting to multiple SDKs, winforms project build failed with error: CSC : error CS8630: Invalid 'nullable' value: 'Enable' for C# 7.3. Please use language version '8.0' or greater.
See original GitHub issue-
.NET Core Version: .NET SDK 6.0.100
-
More info:
- When targeting to multiple SDKs with
net5.0-windows;net48, this issue also repro. - When targeting to multiple SDKs with
netcoreapp3.1;net48, this issue doesn’t repro.
- Have you experienced this same bug with .NET Framework?: No
Actual behavior:
The WinForms project build failed with error: CSC : error CS8630: Invalid ‘nullable’ value: ‘Enable’ for C# 7.3. Please use language version ‘8.0’ or greater.
Expected behavior: The WinForms project could be built successfully
Minimal repro:
- Create a WinForms .NET core project
- Edit .csproj file and change the SDK in <TargetFramework> node
from
<TargetFramework>net6.0-windows</TargetFramework>to<TargetFrameworks>net6.0-windows;net48</TargetFrameworks> - Reload this project
- Build this project
Issue Analytics
- State:
- Created 2 years ago
- Comments:12 (6 by maintainers)
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@Amy-Li03 please refer to https://docs.microsoft.com/dotnet/core/compatibility/sdk/6.0/csharp-template-code
😓