Hey Ahmed,
After looking over the amount of you did provide, this is where I see the issue:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2015.12.08-13.34.24:373][ 0]LogInit:Display: LogObj:Error: LoadConfig (/Script/UnrealEd.Default__ProjectPackagingSettings): import failed for StagingDirectory in: (Path=
You may need to check what you have set for the staging directory. You can find that option in the editor by going to Edit > Project Settings > Packaging.
Please provide the full as a .txt file if you happen to make changes and run into another error.
Looking forward to hearing back from you, thanks!