APK Packaging failed

Hello, i have problem, my packaging of apk file is crashing. There is log.

MainFrameActions: Packaging (Android (All)): ====28.3.2015 10:03:55====PERFORMING FINAL APK PACKAGE OPERATION================================================
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 UnrealBuildTool: ERROR: DistributionSigning settings are not all set. Check the DistributionSettings section in the Andriod tab of Project Settings
MainFrameActions: Packaging (Android (All)): Stacktrace:    at UnrealBuildTool.Android.UEDeployAndroid.PrepareToSignApk(String BuildPath)
MainFrameActions: Packaging (Android (All)):    at UnrealBuildTool.Android.UEDeployAndroid.MakeApk(String ProjectName, String ProjectDirectory, String OutputPath, String EngineDirectory, Boolean bForDistribution, String CookFlavor, Boolean bMakeSeparateApks, Boolean bIncrementalPackage, Boolean bDisallowPackagingDataInApk)
MainFrameActions: Packaging (Android (All)):    at UnrealBuildTool.Android.UEDeployAndroid.PrepForUATPackageOrDeploy(String ProjectName, String ProjectDirectory, String ExecutablePath, String EngineDirectory, Boolean bForDistribution, String CookFlavor, Boolean bIsDataDeploy)
MainFrameActions: Packaging (Android (All)):    at AndroidPlatform.Package(ProjectParams Params, DeploymentContext SC, Int32 WorkingCL)
MainFrameActions: Packaging (Android (All)):    at Project.Package(ProjectParams Params, Int32 WorkingCL)
MainFrameActions: Packaging (Android (All)):    at BuildCookRun.DoBuildCookRun(ProjectParams Params)
MainFrameActions: Packaging (Android (All)):    at BuildCommand.Execute()
MainFrameActions: Packaging (Android (All)):    at AutomationTool.Automation.Execute(List`1 CommandsToExecute, CaselessDictionary`1 Commands)
MainFrameActions: Packaging (Android (All)):    at AutomationTool.Automation.Process(String[] CommandLine)
MainFrameActions: Packaging (Android (All)):    at AutomationTool.Program.MainProc(Object Param)
MainFrameActions: Packaging (Android (All)):    at AutomationTool.InternalUtils.RunSingleInstance(MainProc Main, Object Param)
MainFrameActions: Packaging (Android (All)):    at AutomationTool.Program.Main()
MainFrameActions: Packaging (Android (All)): Program.Main: ERROR: ERROR: DistributionSigning settings are not all set. Check the DistributionSettings section in the Andriod tab of Project Settings
MainFrameActions: Packaging (Android (All)): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (Android (All)): Program.Main: AutomationTool exiting with ExitCode=1
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

Try the fix that’s in this post, seems to be several people having packing issues