Android packaging error (ndk-build.cmd)


I have followed the full tutorial in UE documentation ( Setting Up Unreal Engine Projects for Android Development | Unreal Engine 5.1 Documentation ) and I keep getting an error when packaging for Android. UE 4.6.1

Here is the error :
LogPlayLevel:Display: ====2015-02-15 19:10:39====PREPARING NATIVE CODE=================================================================
LogPlayLevel:Display: UEDeployAndroid.RunCommandLineProgramAndThrowOnError: Preparing native code for debugging…
LogPlayLevel:Display: BuildCommand.Execute: ERROR: BUILD FAILED
LogPlayLevel:Display: Program.Main: ERROR: AutomationTool terminated with exception:
LogPlayLevel:Display: Program.Main: ERROR: Exception in UnrealBuildTool: ERROR: C:\NVPACK\android-ndk-r9c/ndk-build.cmd failed with args APP_ABI="armeabi-v7a " NDK_DEBUG=1

I have tried running the Android SDK Manager and installing SDK Tools, but no success.

I am trying to package the default First Person project.

Thank you

I finally found the solution.

I have Windows 8, and I had to run UE4Editor executable “As administrator”. The export is now working.

Run UE4 Editor as administration then exporting for android not working