All scripts missing?!

This morning i opened my project and i got these 4 errors :

  • Timestamps (856) and assets (853) maps out of sync.
  • Asset ‘Assets/Prefabs/Resources/Rock.PNG’ is in timestamps but is not known in guidmapper…
  • Asset ‘C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/GUISystem/UnityEngine.UI.dll’ is in timestamps but is not known in guidmapper…
  • Asset ‘C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/GUISystem/Editor/UnityEditor.UI.dll’ is in timestamps but is not known in guidmapper…

And all of my scripts, gameobjects (etc…) are missing !

Any idea to fix it ? :frowning:

Ps: I am using Unity 5

I had this error two days ago. Before doing anything made a backup of your project.
Right click on any asset and select reimport all.
You might also want to delete cache and temp folder in your unity project folder.
Some references might still miss, like canvas and EventSystem, you can create those new or simple paste components.