Automationtool in packaking

I have read about this problem in answerhub etc. But everytimes when i try package it failed. Log two last line, no more errors:
MainFrameActions: Packaging (Windows (32-bit)): RunUAT.bat ERROR: AutomationTool was unable to run successfully.
MainFrameActions: Packaging (Windows (32-bit)): BUILD FAILED

I have changed settings in UE4.sln file like it was in answerhub. I have watched many tutorials ets, project has no errors, but still. Is Unreal so poor about packaking, it should be easy job, but no.