"The associated script can not be loaded"

Pretty much what the title says. I loaded up my project yesterday to work on it and noticed I had an odd error with a reference that should be working fine. Upon further exploration, Unity will load none of my scripts and all I get is an error like the one in the photo I attached. They all load fine in Visual Studio and show as being error free. I've tried re-importing them, deleting .meta files, and almost every other fix I could find but nothing has worked. I believe this to be problem with Unity itself rather than anything I've done, as the project was working just fine the last time I loaded it up before this.

Thanks in advance for any help.

 

Make sure the file name of the script matches the name of the class: "PlayerMovement.cs".

 

It does, all of them do in fact.