Problem with: System.MissingMethodException: Method not found

I met a exception which says:

System.MissingMethodException: Method not found: ‘UnityEditor.PackageManager.Client.List’.
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[ ],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[ ] parameters, System.Globalization.CultureInfo culture) [0x000d0] in /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222
UnityEditor.EditorAssemblies:ProcessInitializeOnLoadAttributes()

What may cause such a problem? How to fix it? btw, I copied some asset from one of my 2018.1 project and I think it might be a explanation?

2 Likes

Hi @ZDM1998 ,

This seems to be a bug in our system. Could you kindly fill a bug report please? (Unity QA: Building quality with passion).

Regards,

Pascal

i have it tooo it wont build and that is what happens when u try to build it fuudge

Could you also report a bug on this for us please?

that does not really mean anything i get it all the time when building my game and it builds fine! its just an error unity throws becuse idk why