Packaging project for android fail

i did one package with success and now i cant package my project for android anymore due a build failed :x

i get this error in the output log:

MainFrameActions: Packaging (Android
(All)): UnrealBuildTool: BUILD FAILED
MainFrameActions: Packaging (Android
(All)): UnrealBuildTool:
C:\NVPACK\android-sdk-windows\tools\ant\build.xml:716:
The following error occurred while
executing this line: MainFrameActions:
Packaging (Android (All)):
UnrealBuildTool:
C:\NVPACK\android-sdk-windows\tools\ant\build.xml:730:
Compile failed; see the compiler error
output for details. MainFrameActions:
Packaging (Android (All)):
UnrealBuildTool: MainFrameActions:
Packaging (Android (All)):
UnrealBuildTool: Total time: 11
seconds MainFrameActions: Packaging
(Android (All)): UnrealBuildTool:
UnrealBuildTool Exception: ERROR:
cmd.exe failed with args /c
“C:\NVPACK\apache-ant-1.8.2/bin/ant.bat”
debug MainFrameActions: Packaging
(Android (All)): CommandUtils.Run:
Run: Took 74,0682364s to run
UnrealBuildTool.exe, ExitCode=5
MainFrameActions: Packaging (Android
(All)): ErrorReporter.Error: ERROR:
AutomationTool error: Command failed
(Result:5): E:\ue4\Unreal
Engine\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe
Hooker Android Shipping
E:\UnrealProject\Hooker\Hooker.uproject
-noxge -rocket -NoHotReloadFromIDE -ignorejun MainFrameActions: Packaging (Android (All)): k. See logfile for
details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (Android
(All)): BuildCommand.Execute: ERROR:
BUILD FAILED MainFrameActions:
Packaging (Android (All)):
Program.Main: ERROR: AutomationTool
terminated with exception:
MainFrameActions: Packaging (Android
(All)): Program.Main: ERROR: Exception
in AutomationTool: Command failed
(Result:5): E:\ue4\Unreal
Engine\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe
Hooker Android Shipping
E:\UnrealProject\Hooker\Hooker.uproject
-noxge -rocket -NoHotReloadFromIDE -ignorejun MainFrameActions: Packaging (Android (All)): k. See logfile for
details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (Android
(All)): Stacktrace: à
AutomationTool.CommandUtils.RunAndLog(String
App, String CommandLine, String
Logfile, Int32 MaxSuccessCode, String
Input, ERunOptions Options,
Dictionary2 EnvVars) MainFrameActions: Packaging (Android (All)): à AutomationTool.CommandUtils.RunUBT(CommandEnvironment Env, String UBTExecutable, String CommandLine, String LogName, Dictionary2 EnvVars)
MainFrameActions: Packaging (Android
(All)): à
AutomationTool.UE4Build.BuildWithUBT(String
ProjectName, String TargetName,
UnrealTargetPlatform TargetPlatform,
String Config, String UprojectPath,
Boolean ForceMonolithic, Boolean
ForceNonUnity, Boolean ForceDebugInfo,
Boolean ForceFlushMac, Boolean
DisableXGE, String InAddArgs, Boolean
ForceUnity, Dictionary2 EnvVars) MainFrameActions: Packaging (Android (All)): à AutomationTool.UE4Build.Build(BuildAgenda Agenda, Nullable1
InDeleteBuildProducts, Boolean
InUpdateVersionFiles, Boolean
InForceNoXGE, Boolean InForceNonUnity,
Boolean InForceUnity, Dictionary2 PlatformEnvVars) MainFrameActions: Packaging (Android (All)): à Project.Build(BuildCommand Command, ProjectParams Params, Int32 WorkingCL) MainFrameActions: Packaging (Android (All)): à BuildCookRun.DoBuildCookRun(ProjectParams Params) MainFrameActions: Packaging (Android (All)): à BuildCommand.Execute() MainFrameActions: Packaging (Android (All)): à AutomationTool.Automation.Execute(List1
CommandsToExecute,
CaselessDictionary`1 Commands)
MainFrameActions: Packaging (Android
(All)): à
AutomationTool.Automation.Process(String
CommandLine) MainFrameActions:
Packaging (Android (All)): à
AutomationTool.Program.MainProc(Object
Param) MainFrameActions: Packaging
(Android (All)): à
AutomationTool.InternalUtils.RunSingleInstance(MainProc
Main, Object Param) MainFrameActions:
Packaging (Android (All)): à
AutomationTool.Program.Main()
MainFrameActions: Packaging (Android
(All)): Program.Main: ERROR: Command
failed (Result:5): E:\ue4\Unreal
Engine\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe
Hooker Android Shipping
E:\UnrealProject\Hooker\Hooker.uproject
-noxge -rocket -NoHotReloadFromIDE -ignorejunk. See logfile for details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (Android
(All)): ProcessManager.KillAll: Trying
to kill 0 spawned processes.
MainFrameActions: Packaging (Android
(All)): Program.Main: AutomationTool
exiting with ExitCode=5
MainFrameActions: Packaging (Android
(All)): Domain_ProcessExit
MainFrameActions: Packaging (Android
(All)): ProcessManager.KillAll: Trying
to kill 0 spawned processes.
MainFrameActions: Packaging (Android
(All)): copying UAT log files…
MainFrameActions: Packaging (Android
(All)): RunUAT.bat ERROR:
AutomationTool was unable to run
successfully. MainFrameActions:
Packaging (Android (All)): BUILD
FAILED