I also have this issue and renaming MSBuild folder didn’t help.
Tried upgrading 3 of my projects 2 have the error “Visual Studio 2015 Update 3 required”
I deleted the intermediate folder for one of the projects and regen VS files, regen runs fine but then when opening .sln file get the error can’t find UE.vcxproj and MyProject.vcxproj files. Checked and the intermediate folder now only has a “Build” folder, “ProjectFiles” folder hasn’t even been created
Was on 4.16.3 before with all 3 projects.
Tried a new 4.17 c++ project got error when trying do the initial compile (before even opening VS)
“Running C:/Program Files/Epic Games/UE_4.17/Engine/Binaries/DotNET/UnrealBuildTool.exe Test Development Win64 -project=“C:/Users/fishy/Documents/Unreal Projects/Test/Test.uproject” -editorrecompile -progress -NoHotReloadFromIDE”
“ERROR: Multiple configurations specified on command line (first Test, then Development)”
after that error if I try to open with VS and compile i get the first error of wrong VS version…
Would love a solution as can’t do anything on 4.17 at the moment?