I am building the UE4 flex branch.
Setup.bat ran just fine.
When running Generate .bat I get an error cannot find path to Visual Studio 2012 and check Hkey. I am using 2013 as 2012 is no longer available for download. The requirements seemed to state that 2013 would be ok.
If you open a command window, and type “cmd.exe,” does it properly run that command?
If not, then your PATH variable has been corrupted. You can type “path” in a command line window to see what it’s set at.
You can then edit it in the Environment Variables system setting. Remember that the PATH is the composite of the for-everyone, and per-user, PATH values, so you have to check both places.