Disable assembly definition files

Disable assembly definition files

A few users had a “Assembly has reference to non-existent assembly ‘Unity.Postprocessing.Runtime’ error reported with the correct package installed.

This seems to be a unity compiler issue.  This guide will tell you how to remove the assembly definition files and get around the issue.

There is 3 simple steps to do this.

  • Go to the player settings and enable “unsafe code” this is needed for some internal Job memory copy functions.
  • Find the 2 files as shown below and delete them



When deleted Unity should recompile and the error should go away.