whole project lost?

yo guys,

So I saved all my scenes, saved the project and then I wanted to make a backup. So I dragged the whole project map to my USB. I remembered I had to fix something, so I reopened Unity after the project map was also set on my USB. Then everything turned pink, it said in the console ‘rebuilding library’. But in the project map all the stuff is still there?

Please help

go into your project folder and move the libraries folder out or delete it unity will be forced to reimport all of your assets hopefully fixing your problem