Skip to main content


This page lists some common errors that can be fixed easily.

Build Error

When packaging a project with Operating System Simulator plugin installed, you will encounter the following error and the build fails.

Packaging error screenshot

Solution is easy. Open DefaultGame.ini (from Config folder), add the below entry and restart the editor.


Additional Terminal commands not found


Below steps are no longer required if you are using 3.1.1 or above. Additional terminal commands are now automatically included in packaged game.

The following guide only applies to 3.0 and 3.1.0.

If you are side-loading additional terminal commands, they might not be loaded in a packaged game even though they work in Unreal Editor. To fix this, make sure you add the paths of your terminal commands to Project Settings -> Packaging -> Additional Asset Directories to Cook

Packaging cook screenshot