License Issue Detected!

Unity Engine
1

All I’m trying to do is load up the free version of unity, not unity pro. I don’t even have unity pro. However, I get this message:

“There was a problem validating the license because the Operating System identification seems to have changed.”

It asks me if I would like to re-activate, but whenever I do it just hangs and doesn’t do anything.

Again, I just want to use the free version, how can I do this?

Also, I’ve already uninstalled and reinstalled twice. I haven’t used Unity in a while before today.

1 Like
2

I don’t know if this will help but check #3 on the Known Issues page.

7 Likes
3

Oh wow, that did work. I guess I just assumed that was for a different problem.

Thanks!

4

Wunderbar!

5

The Known Issues page no longer exists. :frowning: Anyone remember how to fix this issue?

6

They moved the page. The url is here: http://forum.unity3d.com/threads/known-issues-in-unity.255282/
I’ll update the link in the other post

7

This fix did not work for me as there is no .ulf file located in the C:\ProgramFiles\Unity file. Anyone got another idea as to how to fix the license issue?

8

Are you sure? You checked out C:\ProgramData\Unity There should be one, If not try opening unity, and then try delete the ulf file

1 Like
9

There’s also not a .ulf file there for me, only the folders “Editor” and “MonoDevelop”. i Tried opening unity and it still didn’t appear. Also i have hidden itens set to show in case that could be a problem.

10

Same problem, there isn’t a .ulf file in C:\ProgramData\Unity

11

I bet some of you (as I, at first) looked in the ProgramFILES, not ProgramDATA directory.
Thanks, guavaman!

3 Likes
12

This is exactly what I did wrong, don’t forget that the ProgramData folder is hidden. You’ll need to change some explorer settings to get hidden files to show up.

1 Like
13

Thanks a lot man, that solved my problem

15

Problem solved! Thanks!!!

16

It also solved the problem to me

17

Solved for me too. Thanks for the tip!

18

…I was just about to post here with that solution!

If you ever run into that sort of problem, deleting that file works 99% of the time after a quick re-install. If you still run into any problems, then drop us a ticket in free support so we can help.

1 Like
19

just remove file Unity_lic.ulf . From Mac it stored in Library/Application support /Unity folder

20

All I’m trying to do is load up the free version of unity, not unity pro. I don’t even have unity pro. However, I get this message:

“There was a problem validating the license because the Operating System identification seems to have changed.”

It asks me if I would like to re-activate, but whenever I do it just hangs and doesn’t do anything.

Again, I just want to use the free version, how can I do this?

Also, I’ve already uninstalled and reinstalled twice. I haven’t used Unity in a while before today

21

Thank You ! it worked.