Visual Studio 2013 error MS8020 Build tools v140 cannot be found

Question

I had previously been using VS2013 express without issue, but suddenly it began crashing whenever I tried edit the code while it ran existing code fine.

I tried unin

Answer 1

@bku_drytt's solution didn't do it for me.

I solved it by additionally changing every occurence of 14.0 to 12.0 and v140 to v120 manually in the .vcxproj files.

Then it compiled!

Answer 2

That's the platform toolset for VS2015. You uninstalled it, therefore it is no longer available.

To change your Platform Toolset:

1. Right click your project, go to Properties.
2. Under Configuration Properties, go to General.
3. Change your Platform Toolset to one of the available ones.