Yes, for dummies 
I had the same error but in different situation, I was working locally on my PC, not in network. Opening the uproject file directly worked, but when I launched Local Windows Debugger in Visual Studio then the error occured.
I managed to fix my problem the “hard way”
I removed the .sln and .vsconfig files and removed the directories: .vs, Binaries, DerivedDataCache, Intermediate and Saved.
Then I generated Visual Studio files again and it works now
Yes I know, this was brute force but I got the job done 