问题
I have a scenario where we are using a legacy .Net Framework dll in .Net core 3.1 class library. Internally .Net Framework dll is using System.Windows.Forms.dll which .Net core is not able to resolve.
I am getting below error message during runtime
Could not load file or assembly 'System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. The system cannot find the file specified.
In a ideal world there is no point in adding System.Windows.Forms.dll to a class library but is there any way to add System.Windows.Forms and its dependencies in .Net core class library.
Note: I have tried manually adding System.Windows.Forms.dll but it did not work out.
回答1:
I got the resolution, we can achieve this by framework reference.
<FrameworkReference Include="Microsoft.WindowsDesktop.App" />
For more details please refer https://natemcmaster.com/blog/2019/01/09/netcore-primitives-3/
来源：https://stackoverflow.com/questions/59890543/unable-to-resolve-system-windows-forms-dll-in-net-core-3-1