User:Prod/Test

If the 'file or assembly' starts with Microsoft or System (like "FileNotFoundException: Could not load file or assembly 'System.[...]' or one of its dependencies") OR you get something like "The library '[...].dll' required to execute the application is not found in 'C:\Program Files\dotnet`" (often this is hostpolicy.dll), something is wrong with the core frameworks used by the game. Common fixes:

• Reset the content files.
• If that doesn't work, uninstall Stardew Valley (and fully delete your game folder) and then reinstall it.
• Check to make sure you don't accidentally have two copies of the game.

(Stardew now comes packaged with the dependencies needed to run, so you shouldn't need to install them yourself.) You may also see an error like this if you installed SMAPI manually (by renaming the .bat to a .zip and moving files yourself). Try reinstalling SMAPI using the installer if that is the case.