I just migrated my engine source code from one PC to other one then I built the android development at the end it stopped at following step for a day.
Android development building stuff have so many problems such like sometimes it disappeared and the migration real not friendly for developer.
I wasted over one week to work out how to build successful an android development source code but it still have the problem in engine source code migration .
can ur guys fix there couples of issues in the future?
1>------ Skipped Build: Project: GitDependencies, Configuration: Development Any CPU ------
1>Project not selected to build for this solution configuration 
2>------ Skipped Build: Project: SlateViewer, Configuration: Android_Development_Program Win32 ------
2>Project not selected to build for this solution configuration 
3>------ Skipped Build: Project: SymbolDebugger, Configuration: Android_Development_Program Win32 ------
3>Project not selected to build for this solution configuration 
4>------ Skipped Build: Project: TestPAL, Configuration: Android_Development_Program Win32 ------
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5>------ Skipped Build: Project: UnrealCEFSubProcess, Configuration: Android_Development_Program Win32 ------
5>Project not selected to build for this solution configuration 
6>------ Skipped Build: Project: UnrealCodeAnalyzer, Configuration: Android_Development_Program Win32 ------
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7>------ Skipped Build: Project: UnrealFileServer, Configuration: Android_Development_Program Win32 ------
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8>------ Skipped Build: Project: UnrealFrontend, Configuration: Android_Development_Program Win32 ------
8>Project not selected to build for this solution configuration 
9>------ Skipped Build: Project: UnrealHeaderTool, Configuration: Android_Development_Program Win32 ------
9>Project not selected to build for this solution configuration 
10>------ Skipped Build: Project: UnrealLightmass, Configuration: Android_Development_Program Win32 ------
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11>------ Skipped Build: Project: CrashReportClient, Configuration: Android_Development_Program Win32 ------
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12>------ Skipped Build: Project: UnrealSync, Configuration: Android_Development_Program Win32 ------
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13>------ Skipped Build: Project: UnrealVersionSelector, Configuration: Android_Development_Program Win32 ------
13>Project not selected to build for this solution configuration 
14>------ Skipped Build: Project: BootstrapPackagedGame, Configuration: Android_Development_Program Win32 ------
14>Project not selected to build for this solution configuration 
15>------ Build started: Project: UE4, Configuration: Android_Development_Game Win32 ------
16>------ Skipped Build: Project: BlankProgram, Configuration: Android_Development_Program Win32 ------
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17>------ Skipped Build: Project: BuildPatchTool, Configuration: Android_Development_Program Win32 ------
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18>------ Skipped Build: Project: MinidumpDiagnostics, Configuration: Android_Development_Program Win32 ------
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19>------ Skipped Build: Project: CrossCompilerTool, Configuration: Android_Development_Program Win32 ------
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20>------ Skipped Build: Project: UnrealLaunchDaemon, Configuration: Android_Development_Program Win32 ------
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21>------ Skipped Build: Project: DsymExporter, Configuration: Android_Development_Program Win32 ------
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22>------ Skipped Build: Project: UE4EditorServices, Configuration: Android_Development_Program Win32 ------
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23>------ Skipped Build: Project: UnrealAtoS, Configuration: Android_Development_Program Win32 ------
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24>------ Skipped Build: Project: UnrealPak, Configuration: Android_Development_Program Win32 ------
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26>------ Skipped Build: Project: ShaderCompileWorker, Configuration: Android_Development_Program Win32 ------
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15>  Target is up to date.
15>  NDK version: 21, GccVersion: 4.9
15>  Receipt Filename: E:\Program Files (x86)\EpicEngines\UnrealEngine-4.10.1-release\Engine\Build\Receipts\UE4Game-Android-Development.target.xml
15>  AndroidPlugin: Plugins\Runtime\GearVR\Source\GearVR\GearVR_APL.xml
15>
15>  APL: ..\Plugins/Runtime/GearVR/Source/GearVR/GearVR_APL.xml
15>
15>  ====2016/1/6 17:55:35====PREPARING TO MAKE APK=================================================================
15>
15>  ==== Writing to shim file E:\Program Files (x86)\EpicEngines\UnrealEngine-4.10.1-release\Engine\Build\Android\src\com\epicgames\ue4\DownloadShim.java ====
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15>  ==== Shim data file up to date so not writing. ====
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15>  ==== Writing to template target file E:\Program Files (x86)\EpicEngines\UnrealEngine-4.10.1-release\Engine\Build\Android\src\com\YourCompany\UE4Game\AlarmReceiver.java ====
15>
15>  ==== Template target file up to date so not writing. ====
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15>  ==== Writing to template target file E:\Program Files (x86)\EpicEngines\UnrealEngine-4.10.1-release\Engine\Build\Android\src\com\YourCompany\UE4Game\DownloaderActivity.java ====
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15>  ==== Template target file up to date so not writing. ====
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15>  ==== Writing to template target file E:\Program Files (x86)\EpicEngines\UnrealEngine-4.10.1-release\Engine\Build\Android\src\com\YourCompany\UE4Game\OBBDownloaderService.java ====
15>
15>  ==== Template target file up to date so not writing. ====
15>  Cleaning up files based on template dir E:\Program Files (x86)\EpicEngines\UnrealEngine-4.10.1-release\Engine\Build\Android\src\com\YourCompany\UE4Game