All compiler errors have to be fixed

I have 0 console errors, reinstalled Unity 4.3 and it still gives me that error when I try to play any project (even angry bots)

Is there any solution? thanks

Right click on a script, select “Reimport”. This will show you all compiler errors that need to be fixed.

It gives this marks----“D:\My Documents\New Unity Project\Assets\wheel.js(22,22): Error BCE0077: It is not possible to invoke an expression of type ‘UnityEngine.Quaternion’. (BCE0077) (Assembly-UnityScript)”. What dose that mean?is there anyone who can help solve it?

Besides,there are some warnings like this------“Warning: The reference ‘System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’ is not valid for the target framework of the project. (Assembly-UnityScript)”,“Warning: The reference ‘System.Xml.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’ is not valid for the target framework of the project. (Assembly-UnityScript)”.So confused!!

Problem has been solved!