Conflicting files that I can't delete

The error message: Conflicting assets with the same target path 'css/site#[.{fingerprint}]?.css' Trying to make a little asp.net mvc app, and getting the above issue. Was using wsl for windows, so using ubuntu, but deleted the folder from there, as "dotnet ef migrations add DbInitialMigration" wasn't working due to the dotnet version. Now editing the code on windows machine and trying to run "dotnet ef migrations add DbInitialMigration" but getting a conflict issue to the old ubuntu directory