Cannot initialize non-default texture with negative or zero width.

I get the error Cannot initialize non-default texture with negative or zero width when I am building my project, although I have not added other things from the last build. The other message shown is UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&).

I can’t seem to figure out what is causing this error, because even when I try to build one scene at a time it is always shown. Any help would be gladly appreciated

same problem