Error when installing Unreal Engine 4

Question

When Install UE4 in Laptop RAM 8GB CPU i7-3720QM Graphic Nvidia Quadro K1000M

Enter in terminal:

sudo make UE4Editor UE4Game UnrealPak CrashReportClient ShaderCompileWorker UnrealLightmass

Output:

bash "/home/nguyenkhacthanh/Desktop/UnrealEngine-release/Engine/Build/BatchFiles/Linux/Build.sh" UE4Editor Linux Development  
Building UE4Editor...
Using clang version '3.8.0' (string), 3 (major), 8 (minor), 0 (patch)
Creating makefile for UE4Editor (no existing makefile)
Performing full C++ include scan (no include cache file)
Building UnrealHeaderTool...
Using clang version '3.8.0' (string), 3 (major), 8 (minor), 0 (patch)
Creating makefile for UnrealHeaderTool (no existing makefile)
Using bundled libc++ standard C++ library.
Target is up to date
Parsing headers for UE4Editor
  Running UnrealHeaderTool UE4Editor "/home/nguyenkhacthanh/Desktop/UnrealEngine-release/Engine/Intermediate/Build/Linux/B4D820EA/UE4Editor/Development/UE4Editor.uhtmanifest" -LogCmds="loginit warning, logexit warning, logdatabase error" -Unattended -WarningsAsErrors
Refusing to run with the root privileges.
Error: UnrealHeaderTool failed for target 'UE4Editor' (platform: Linux, module info: /home/nguyenkhacthanh/Desktop/UnrealEngine-release/Engine/Intermediate/Build/Linux/B4D820EA/UE4Editor/Development/UE4Editor.uhtmanifest, exit code: Canceled (1)).
Makefile:183: recipe for target 'UE4Editor' failed
make: *** [UE4Editor] Error 1

Answer 1

You don't need root privileges to make Unreal Engine 4.

At first you have to type following in your terminal:

./Setup.sh

Then:

./GenerateProjectFiles.sh

And then type without options or arguments:

make

After building type

make ARGS=-clean

to clean any build target automatically.

Answer 2

In my case UnrealEngine directory was owned by root, so make failed because of permissions, and sudo make refused to run as above. The solution was to change the owner to myself, as in:

sudo chown -R $USER <UE directory>

then run make.