2018.2 Where is Window > Package Manager?

Questions & Answers
1

I installed 2018.2 and ran a project that worked in 2018.1 that was using UnityEngine.GUIStyle and GUILayout. I immediately got a great deal of errors, with a common theme: “Enable the built in package ‘IMGUI’ in the Package Manager window to fix this error.”

This is the first time I looked up the package manager, and found numerous references to it, saying its built in, and can be found in the top menu, Window > Package Manager. (For instance here & here) But my installation is missing this. I do not know if it is part of some obscure setting I need to activate, if I’m missing some obvious step or what is going on. Any help would be appreciated.

120650-2018-07-12-4-59-43.png
120650-2018-07-12-4-59-43.png748×420 63.3 KB

[UPDATE]
It does work on a blank project. but I have a project that Uses EditorGUILayout, and it does not work there. Its as if a build error in my scripts killed it. But that build error only happened when upgrading to 2018.2, and the only fix I’m finding for it, is to use the package manager, but the package manager wont start because there is a build error. :frowning:

VS reported this bug: CS0012 The type ‘GUILayoutOption’ is defined in an assembly that is not referenced. You must add a reference to assembly ‘UnityEngine.IMGUIModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null’. Assembly-CSharp

  • I’ll post this GUILayout bug separately. But does anyone know how to Enable the built in package ‘IMGUI’ without the package manager?
2

Turns out the Manifest.json file was empty. I just copied over a manifest file from a new project and it worked. Not positive why it was blank, but the fix was easy once I looked in the right spot.

3

My project doesn’t have a Packages directory. Is there any other solution?

4

For me it was the absense of the ‘Package Manager UI’ in the Packages/manifest.json file:
“com.unity.package-manager-ui”: “2.0.13”

I manually added the dependency and the Package Manager appeared.