Assettimestamp Errors

Symptoms:

Did you just open the project and get assettimestamp errors, or errors with Extension not registered (VR) or InitializeUnityExtensions that look like these screenshots? There's an easy fix to these.

Click to view larger.

Click to view larger.

The Fix:

Simply close Unity, open the project folder and delete the Library folder. Then reopen the project in Unity. Unity will recreate the library and the errors will be resolved.

Click to view larger.

Select the Game scene, open it, and Play.

Click to view larger.

Still getting errors?

When you open the Game scene, do you see a blank screen or get errors about UI buttons? Make sure you've already installed the necessary plug-ins (read Installation Instructions here

Also, check this link for more details: https://issuetracker.unity3d.com/issues/unityengine-dot-ui-dot-dll-is-in-timestamps-but-is-not-known-in-guidmapper-dot-dot-dot-1