errror paking adndroid by ue4 4.21

hi
i packing game in ue4 4.20 and not pack for android
i remaking game in the 4.21
but not packing and error after 4 horse
and error
please help me

error LogPlayLevel: Completed Launch On Stage: Cooking in the editor, Time: 9561.568365 LogPlayLevel: Running AutomationTool… LogPlayLevel: Parsing command line: -ScriptsForProject=“C:/Users/Zare/Desktop/runner786 4.21/runner786.uproject” BuildCookRun -project=“C:/Users/Zare/Desktop/runner786 4.21/runner786.uproject” -noP4 -clientconfig=Development -serverconfig=Development -nocompile -nocompileeditor -installed -ue4exe=UE4Editor-Cmd.exe -utf8output -platform=Android_ASTC -targetpl atform=Android -cookflavor=ASTC -ini:Game:[/Script/UnrealEd.ProjectPackagingSettings]:BlueprintNativizationMethod=Disabled -map=/Game/runner110/map/base-leve1 -skipcook -CookInEditor -iterativecooking -compressed -iterativedeploy -stage -deploy -cmdline="/Game/runner110/map/base-leve1 -Messaging" -device=Android_ASTC@****************** -addcmdline="-SessionId= ***************************************************-SessionOwner=‘Zare’ -SessionName=‘Launch On Device’ " -run LogPlayLevel: Setting up ProjectParams for C:\Users\Zare\Desktop\runner786 4.21\runner786.uproject LogPlayLevel: ** STAGE COMMAND STARTED ** LogPlayLevel: Error: ERROR: Stage Failed. Missing receipt ‘C:\Users\Zare\Desktop\runner786 4.21\Binaries\Android\runner786.target’. Check that this target has been built. LogPlayLevel: (see C:\Users\Zare\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Epic+Games+UE_4.21\Log.txt for full exception trace) LogPlayLevel: AutomationTool exiting with ExitCode=103 (Error_MissingExecutable) LogPlayLevel: Completed Launch On Stage: Build Task, Time: 4.764109 LogPlayLevel: Completed Launch On Stage: Deploy Task, Time: 0.000139 LogPlayLevel: BUILD FAILED PackagingResults: Error: Launch failed! Missing UE4Game binary. You may have to build the UE4 project with your IDE. Alternatively, build using UnrealBuildTool with the commandline: UE4Game

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