Can't find android phone

Ok now it works but when i lunch any project i get an error
ERROR: dump failed because assets could not be loaded

BuildCommand.Execute: ERROR: BUILD FAILED

Program.Main: ERROR: AutomationTool terminated with exception:

Program.Main: ERROR: Exception in Android.Automation: Failed to get package name from C:/Users/****/Desktop/UnrealEngine-4.0\Engine\Binaries/Android\UE4Game-armv7.apk

Stacktrace: in AndroidPlatform.GetFinalObbName(String ApkName) in c:\Users*****\Desktop\UnrealEngine-4.0\Engine\Source\Programs\AutomationTool\Android\AndroidPlatform.Automation.cs:riga 61

in AndroidPlatform.GetDeviceObbName(String ApkName) in c:\Users*****\Desktop\UnrealEngine-4.0\Engine\Source\Programs\AutomationTool\Android\AndroidPlatform.Automation.cs:riga 86

in AndroidPlatform.Deploy(ProjectParams Params, DeploymentContext SC) in c:\Users*****\Desktop\UnrealEngine-4.0\Engine\Source\Programs\AutomationTool\Android\AndroidPlatform.Automation.cs:riga 186

in Project.Deploy(ProjectParams Params)

in BuildCookRun.DoBuildCookRun(ProjectParams Params)

in BuildCommand.Execute()

in AutomationTool.Automation.Execute(List1 CommandsToExecute, CaselessDictionary1 Commands)

in AutomationTool.Automation.Process(String[] CommandLine)

in AutomationTool.Program.MainProc(Object Param)

in AutomationTool.InternalUtils.RunSingleInstance(MainProc Main, Object Param)

in AutomationTool.Program.Main()

Program.Main: ERROR: Failed to get package name from C:/Users/*****/Desktop/UnrealEngine-4.0\Engine\Binaries/Android\UE4Game-armv7.apk

copying UAT log files…

RunUAT.bat ERROR: AutomationTool was unable to run successfully.

BUILD FAILED