Unity crash at startup...

Archived Forums Questions & Answers
1

As soon as I start up Unity (4.3), there’s a splash screen for about 2.5 seconds, then a Not Responding message… This has been a very frustrating issue, and I already took these steps to try and tackle it:

  • DEP/Data Execution Prevention settings
  • Uninstall/Reinstall
  • Downgraded to an older version
  • Complete removal then fresh installation
  • Hold Alt at startup to open the project window, which, in turn, does nothing and does not work…

If anyone may know a solution that does not include the attempted ones up top, please tell me as soon as possible.

Thanks in advance!

I have this same issue, any updates on how to solve it? It started when I was updating from the Asset Server then I had a Fatal Error then ever since then I wasn't able to open Unity 4.3.1 or 4.2.1. Unity 3.5 opens fine.

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Regristry key is missing because when i deleted a regristry key it would not start it could have been a program blocking the key? tell me if this helps cause i doubt it does!

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I have this issue after having a merge conflict in a scene (and then fixing it). Nothing there yet that should cause Unity to crash.

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4 Answers

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3

In Windows:

Start > Run > regedit

In Registry Editor:

HKEY_CURRENT_USER / SOFTWARE / UNITY TECHNOLOGIES

Delete the entire Unity Technologies folder, then start Unity.

Nope, sorry, it doesn't seem to solve the problem... :'( QQ But thanks again Clunk47, you seem to help me out a lot :D

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Yeah I deleted both folders and did what you told me, with no luck :/

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What version of Windows are you running, do you have system restore points, or do you have a recovery partition or disk that came w/ your PC? I usually just reinstall windows if I run into too many problems.

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Also, have you tried installing Unity in a different location? Like instead of Program Files(x86) or Program Files, try C:/Unity/Editor/ If you have another drive or partition, try installing to one of them e.g. D:/Unity/Editor/

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I have tried both, and no, sadly I don't have a restore point or a backup, I am one of those who crosses his fingers and hopes that things don't get too bad :P But yeah, all versions of unity don't work, and installing at a different location makes no difference...

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2

how that happen? did you made any changes to the last project you worked on?
after you upgrade to 4.3?

try to move the last project you worked on away from the project folder.
unity should start clean.

I tried moving all the projects, renaming them, even deleted them after backing up on an external HDD. Any solutions? :'(

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OK... time to check your computer! bad sectors, virus etc... this is very odd situation!

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4

This has been an extremely common issue for me and teammates I’ve worked with - especially when the project is using version control. I’ve noticed it generally happens after files have been renamed or moved, after meta files have been omitted from a submit, or after work is done offline and later reconciled with the version control software.

For me and the artists I support, it has worked consistently to delete the AssetDatabase file in the Project/Library. Unity will regenerate it when you open the project again.

Perhaps it’s a problem with where the Unity library database thinks assets will be, and where they actually are (or aren’t). Deleting this file will not result in lost work, as it is just a reference database. The only unfortunate part about the whole thing is the time it takes to reimport; for larger projects, be prepared to take a coffee break.

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find the solution check it here