Problems with building from source

Hey guys, I was working on source-build engine 4.9. So i wanted to update. i downloaded 4.10 source code, removed vs2013, installed vs2015. I ran setup.bat and its goes fine. Then i ran generateprojectfiles.bat and it just doing nothing. Whole day my pc is running this tool, and i only see 'Setting up Unreal Engine 4 project files". What the heck, how to fix it?

GenerateProjectFiles.bat step should be very fast (a minute) whereas Setup.bat downloads lots of stuff and can take a while. Haven’t tried using vs2015 though – is there a reason to prefer it over vs2013?