Android Package build failed-Unknown error

Hello, I have a problem here. Whenever I package the game for Android (tried every format) it gives me Build failed error.
I am attaching the log file, any help will be appreciated.

link text

  1. Close UE4 Editor.
  2. Go to Project Folder
  3. Rename Source folder to _Source
  4. Open Project and build it
  1. Close UE4 Editor.
  2. Go to Project Folder
  3. Rename Source folder to _Source
  4. Open Project and build it

Sorry for late reply, but there is no “Source” Folder. I have made the project on Blueprints