[Unreal 4.12.5] Unable to Launch Game

Whenever I try to launch my game via the launch command, I get an error after about 90 seconds with a message:

“PackagingResults: Error: Error Launch failed! Unknown error.”

Attached is the full log. I’ve tried to do this on a completely blank, totally new project with literally no starter content and nothing added to it. I’m at a loss for why this is happening and would love some help, I took a break from UE4 due to crash issues a while ago and would love to come back and pick it up again.link text

Hello,

This is the error I see in your log: LogPlayLevel: WindowsPlatform.get_Compiler: WARNING: Visual C++ 2015 toolchain does not appear to be correctly installed. Please verify that “Common Tools for Visual C++ 2015” was selected when installing Visual Studio 2015.

Take a look at this blog post: https://blogs.msdn.microsoft.com/vcblog/2015/07/24/setup-changes-in-visual-studio-2015-affecting-c-developers/

You’ll need to ensure that you have VS 2015 installed, and enable the C++ content in the installer manually.

If after doing this you are still experiencing packaging errors, please respond to this thread with the updated output log.

Have a great day

I installed C++, but it still wasn’t working. I did some research and saw the log was complaining about UE4Game.pdb . I installed the Editor Symbols option and everything worked fine afterwards. Problem solved!