Unity 4.2 editor crashes on startup splash screen.

Questions & Answers
1

enter code hereHi,

I’ve been using Unity 4.2 since it came out and all has been fine. This week though I cannot launch Unity and get an immediate crash on start up (right as it shows the Unity splash image). A window appears and says ''Unity Editor has stopped working" - check online for solution / close program.

Below is the error log from that window:

Problem signature:
  Problem Event Name:	APPCRASH
  Application Name:	Unity.exe
  Application Version:	4.2.1.11687
  Application Timestamp:	521c68de
  Fault Module Name:	Unity.exe
  Fault Module Version:	4.2.1.11687
  Fault Module Timestamp:	521c68de
  Exception Code:	c0000005
  Exception Offset:	00a42d4e
  OS Version:	6.1.7601.2.1.0.768.3
  Locale ID:	1033
  Additional Information 1:	0a9e
  Additional Information 2:	0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:	0a9e

Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

I don’t know what to do to fix this and it’s very important I find solution asap!!

I’ve already tried the ‘-force-d3d11’ “fix” and that does nothing for me.

Also, if I install Unity 3.5 it works, so it’s something messed up involving 4.2

Any ideas??? :frowning:

3

So I finally got it fixed! Unity tech support had me do the following, which got me back up and running. Hope this helps others who may have the same misfortune as I. Cheers’

TO FIX:

You may need to clear your existing Licensing files. These can cause the Editor to hang upon Reactivation.

Give the steps below a try, and let me know how you get on! The files may be hidden.

1.Uninstall Unity

2.Delete this file (folder):

  • WinXP/Vista: C:/Documents and Settings/All Users/Application Data/Pace Anti-Piracy/License Files
  • Win7: C:/ProgramData/PACE Anti-Piracy/License Files
  • Mac: HD/Library/Application Support/PACE Anti-Piracy/License Files

and

  • Windows: C:ProgramData/Unity

  • Mac: Library/Application Support/Unity

  1. Restart
  2. Download Unity again from our website, since your original install might be corrupt.
    http://unity3d.com/unity/download
  3. Reinstall and test
2

I had a similar thing with the first instal, simply reinstalling/repairing fixed my problem.