I can't launch my C# project.

Unhandled exception. System.IO.FileLoadException: Could not load file or assembly 'MySql.Data, Version=8.0.29.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d'. The located assembly's manifest definition does not match the assembly reference. (0x80131040) File name: 'MySql.Data, Version=8.0.29.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' at MySQL_namespace.SQLWork.Initialize(String server_name, String _port, String database_name, String user, String pass) ...

It used to work before long time ago. Now, after I had issues with MySQL connection I have updated MySQL connector nuget. After that I also rebuilt it using .Net 5.0. Can't launch it now as it returns above error.

CodePudding user response：

Did you make sure to copy it to the output directory?

CodePudding user response：

You can try as follows:

1. After deleting the original nuget.
2. Clean the project.
3. Reinstall the new nuget.
4. Rebuild the project.