Generating MSVS Project files for the Engine

I’m a very new user to this product, but I am a pro software developer.

I’m following instructions at…

Trying to build the UE4 Engine.

On Win7 x64
I have…

  1. Verified version 4.1 installed correctly and the Launcher works.
  2. Installed VS Express 2013 and have it running.

The instructions call for GenerateProjectFiles.bat to be ran.

I only have a \Unreal Engine\4.1\Engine\Build\BatchFiles\RocketGenerateProjectFiles.bat

and when I run it I get the following error, looks to me like it wants the project file ? I thought it was suposed to create that project file ?

Setting up Rocket project files…
UnrealBuildTool Exception: System.IO.FileNotFoundException: Could not find file
‘C:\devel\Unreal Engine\4.1\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTo
File name: ‘C:\devel\Unreal Engine\4.1\Engine\Source\Programs\UnrealBuildTool\Un
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)


Please advise.

Thank you for your help,

Ok, I checked the GitHub repo. It looks like I’m missing allot of files from the repository.
However, When I “Verify install” in the Launcher It seems ok.

So… The Launcher software is a subset of the files listed on the repo ?

Looks like the following is required.

  1. Clone the github repo.
  2. Run the launcher downloading the engine.
  3. “verify install”

I will try these steps and see if this is correct.

In order to build UE4 from source, you do not need the launcher, as the launcher downloads the binary version of the engine without source code access.

Follow the following steps:
1.) Go here
2.) download,, and
3.) Extract everything to a new directory, e.g. C:\UE4\4.1.1.
4.) Go to the root folder and run “GenerateProjectFiles.bat” as administrator.
5.) After the project files have been generated, open “UE4.sln” with Visual Studio.
6.) Build the engine using “Development Editor”, “Win64”.



I will do that, I see my mistake now.

Thank you so very much for your support !


No problem, glad I was able to help. :wink: