Launching on an Android Device - Build Failed

Development Platform & Builds Mobile
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1

Device: Samsung Galaxy S6 Edge
OS : Android 7.0
Unreal Engine: v 4.24.1

Step 5 of https://docs.unrealengine.com/en-US/…ted/index.html


LogPlayLevel: Warning: WARNING: SafeCopyFile Exception was Exception in mscorlib: Could not find a part of the path 'C:\Users\kevin\Documents\Unreal Projects\Repository\04_UnrealArmWrestling\UnrealArmWrestling\Saved\StagedBuilds\Android_ASTC\Engine\Plugins\Online\Android\OnlineSubsystemGooglePlay\Content\Localization\OnlineSubsystemGooglePlay\OnlineSubsystem
GooglePlay.locmeta'.

LogPlayLevel:          Stacktrace:    at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
LogPlayLevel:             at System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite, Boolean checkHost)
LogPlayLevel:             at AutomationTool.InternalUtils.SafeCopyFile(String SourceName, String TargetName, Boolean bQuiet, List`1 IniKeyBlacklist, List`1 IniSectionBlacklist) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\AutomationTool\AutomationUtils\Utils.cs:line 372
LogPlayLevel: Failed to copy C:\Program Files\Epic Games\UE_4.24\Engine\Plugins\Online\Android\OnlineSubsystemGooglePlay\Content\Localization\OnlineSubsystemGooglePlay\OnlineSubsystemGooglePlay.locmeta to C:\Users\kevin\Documents\Unreal Projects\Repository\04_UnrealArmWrestling\UnrealArmWrestling\Saved\StagedBuilds\Android_ASTC\Engine\Plugins\Online\Android\
OnlineSubsystemGooglePlay\Content\Localization\OnlineSubsystemGooglePlay\OnlineSubsystemGooglePlay.locmeta, deleting, waiting 10s and retrying.

LogPlayLevel: Error: ERROR: Failed to copy C:\Program Files\Epic Games\UE_4.24\Engine\Plugins\Online\Android\OnlineSubsystemGooglePlay\Content\Localization\OnlineSubsystemGooglePlay\OnlineSubsystemGooglePlay.locmeta to C:\Users\kevin\Documents\Unreal Projects\Repository\04_UnrealArmWrestling\UnrealArmWrestling\Saved\StagedBuilds\Android_ASTC\Engine\Plugins\O
nline\Android\OnlineSubsystemGooglePlay\Content\Localization\OnlineSubsystemGooglePlay\OnlineSubsystemGooglePlay.locmeta

LogPlayLevel:        (see C:\Users\kevin\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.24\Log.txt for full exception trace)
LogPlayLevel: AutomationTool exiting with ExitCode=1 (Error_Unknown)
LogPlayLevel: Completed Launch On Stage: Deploy Task, Time: 92.537093
LogPlayLevel: BUILD FAILED
PackagingResults: Error: Launch failed! Unknown Error

Any ideas?

Thanks in advance.

2

Solve this?

3

Did you try to delete your cache and these example builds? Sometimes a clean project without any older build versions / Cache data makes a big difference

On XIAOMI Devices, we have a option called “Install via USB”, maybe you have also to activate something like this on your phone, but first of all delete your cache etc
EDIT: Make a BACKUP before deleting something