log UE 4.15 problem UBT

    1>------ Build started: Project: MyProject, Configuration: Development_Editor x64 ------
    1>  Compiling game modules for hot reload
    1>  Performing 3 actions (4 in parallel)
    1>  MyProjectCharacter.cpp
    1>  [2/3] Link UE4Editor-MyProject-5124.dll
    1>  [3/3] Link UE4Editor-MyProject-3542.lib
    1>     Creating library J:\Workspace\MyProject\Intermediate\Build\Win64\UE4Editor\Development\UE4Editor-MyProject-5124.lib and object J:\Workspace\MyProject\Intermediate\Build\Win64\UE4Editor\Development\UE4Editor-MyProject-5124.exp
    1>     Creating library J:\Workspace\MyProject\Intermediate\Build\Win64\UE4Editor\Development\UE4Editor-MyProject-5124.suppressed.lib and object J:\Workspace\MyProject\Intermediate\Build\Win64\UE4Editor\Development\UE4Editor-MyProject-5124.suppressed.exp
    1>ERROR : UBT error : Failed to produce item: J:\Workspace\MyProject\Intermediate\Build\Win64\UE4Editor\Development\UE4Editor-MyProject-3542.lib
    1>  Total build time: 2,55 seconds (Local executor: 0,00 seconds)
    1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.MakeFile.Targets(37,5): error MSB3075: The command ""E:\Program Files (x86)\Epic Games\UE_4.15\Engine\Build\BatchFiles\Build.bat" MyProjectEditor Win64 Development "J:\Workspace\MyProject\MyProject.uproject" -waitmutex" exited with code 5. Please verify that you have sufficient rights to run this command.
    ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========