Installation & Licensing

Installation & Licensing

Posts: 5
Registered: ‎01-30-2011
Message 61 of 70 (4,349 Views)

Re: Maya 2011 Mac OSX "error 20" solved by changing language to Englis

02-22-2011 02:40 AM in reply to: david.lau

Do you fix this problem in future?

Posts: 3
Registered: ‎12-14-2010
Message 62 of 70 (4,317 Views)

Re: Maya 2011 Mac OSX "error 20"

02-24-2011 05:55 AM in reply to: david.lau


i did try to change the language and set it to english but i still have the same problem!!!! please tell me what should i do?

Product Support
Posts: 1,489
Registered: ‎06-18-2008
Message 63 of 70 (4,313 Views)

Re: Maya 2011 Mac OSX "error 20" solved by changing language to Englis

02-24-2011 06:08 AM in reply to: rednez

Go to Page 6 of this post.  Basically, you need to delete the Maya folder in the Applications and a couple of other extra folders.  Then re-install the software....

David Lau
Posts: 5
Registered: ‎01-30-2011
Message 64 of 70 (4,299 Views)

Re: Maya 2011 Mac OSX "error 20" solved by changing language to Englis

02-24-2011 07:09 AM in reply to: rednez

Please go to page 6 for this topic and read my post number 59 with answer to your post. In my answer I wrote you that your solution did not work.

I quote my post number 59
"I try to do step-by-step as you advise me.
1. My system is MacOS 10.6.6, language of OS is Russian.
2. I deleted /Library/Application Support/Autodesk/Adlm/
            /Library/Preferences/FLEXnet Publisher/FLEXnet/
Also I deleted al of Maya files.
3. I installed Maya 2011 as trial using 000-00000000.
4. I try to run Maya as Trial but get "error 20" again!
 If I change my system language to English, Maya run good. But If I change system language to Russian then Maya not run again and "error 20" is appearing."
After this you wrote answer me (post number  60) "This is a known issue.   You need to run it in English as a workaround.". By this answer you agreed that problem exists and did not fixed yet.
Than I answered you (post number 61)  "Do you fix this problem in future?".  And you answered me (post number 63) that I have to read your post number 58 again.
So, I confused. Please help me and explain what I undestand incorrectly?


Posts: 4
Registered: ‎04-01-2011
Message 65 of 70 (4,144 Views)

Maya 2011 Mac OSX "error 20" problem NOT solved

04-03-2011 12:30 PM in reply to: david.lau



I'm at my wits end! I think I've spent over 8 hours reading the forums and trying different things. I'm on Mac OS X and my  language is set to English, but this solution of deleting the two folders and then re-installing Maya as a trial did not work for me. I am still getting the "error 20" message when I run the application.


One thing that might help is if you could explain how to completely uninstall Maya. I'm wondering if there's a file or directory someplace that I'm not deleting before I do a re-install. I have just been deleting the Autodesk folder in Applications. Do I need to delete anything else before trying to re-install? I've included the text from two of the log files below, in case that helps.


Any help you can provide would be much appreciated!





nicolesmac:tmp nicoley$ more MayaLicense.log

:====== BEGIN MAYA LICENSE DIAGNOSTICS Sun Apr  3 15:00:32 2011 ======
623848 ::: 2
623801 ::: m2010.015 mac32, built Mar 19 2010 03:58:45
623802 ::: links in AdLM but not Flint
623833 ::: 'adlm'
623858 ::: 'en_US'
623824 ::: MAYA_LICENSE_METHOD 'standalone'
623823 ::: MAYA_LICENSE 'unlimited'
623826 ::: MAYA_ALT_EN
623830 ::: MAYA_LOCATION '/Applications/Autodesk/maya2011/'
623866 ::: '/Applications/Autodesk/maya2011/'
623846 ::: AdLM (D034) mac32
623807 ::: standalone MU 657C1 2011.0.0.F
623109 --- MU 657C1 2011.0.0.F 20
623837 ::: 0
623834 ::: 0
623838 :::
623805 :::
====== END MAYA LICENSE DIAGNOSTICS Sun Apr  3 15:00:32 2011 ======


nicolesmac:tmp nicoley$ more Adlm.log
654     2011/04/03      15:00:21        Reason=Fatal error
654     2011/04/03      15:00:21        ComputerName= NicolesMac

654     2011/04/03      15:00:21        OS= Mac OS X 10.6.7 (10J869)

654     2011/04/03      15:00:21        File=AdlmIntSATSLicense.cpp,Line=364
654     2011/04/03      15:00:21        VendorID=2 [ADLMACT]
654     2011/04/03      15:00:21        VendorError=101 [The license cannot be accessed/loaded/opened]


New Member
Posts: 1
Registered: ‎05-17-2011
Message 66 of 70 (3,942 Views)

Re: Maya 2011 Mac OSX "error 20"

05-17-2011 11:11 AM in reply to: Learil

My Maya 2011 license stopped working suddenly and I got the same error 20. Tried to uninstall and reinstall as a trial several times and still got the error. I'm using English so that wasn't the issue. Even tried installing Maya 2012 and still had the problem.


This solved the problem for me:


1. Open the file ~/Library/Preferences/Autodesk/maya/2011-x64/Maya.env

2. Add these lines to the file:


MAYA_LOCATION = /Applications/Autodesk/maya2011/
MAYA_LICENSE = Unlimited

3. Save it and start Maya. 



Hope that helps!

New Member
Posts: 1
Registered: ‎12-15-2011
Message 67 of 70 (2,831 Views)


12-26-2011 06:51 AM in reply to: Learil

Hello Guys!!! I have a problem with sturting Maya on Mac! it says:


Licensing Problem:

A license related problem has occured

[ -12]


Can someone help me please? I checked up many sites and forums but I couldn't find any solution...please help me!!!!!

Active Member
Posts: 7
Registered: ‎01-23-2012
Message 68 of 70 (2,663 Views)

Re: Maya 2011 Mac OSX "error 20"

01-30-2012 07:55 PM in reply to: Learil

Hi  everyone,


I FINALLY FOUND A SOLUTION to fixing the error "License was not obtained
Tried Maya 2011 (657C1 2011.0.0.F), error 20" and I thought I would share. 


I have been trying to solve this for two weeks straight, looking through all the forums, and going back and forth with Autodesk, all to no avail. Finally, I found a solution. Here it is. 


You need delete the file Maya.env which can be found below. This file is corrupt and is preventing you from booting up Maya. Even after you have uninstalled the software, it will still remain there, that is why uninstalling and reinstalling didn't work. You have delete this Maya.env file and when you start up maya again, it will generat a new Maya.env and then it should work. 


home user folder (not the hard drive) > Library > Preferences > Autodesk > maya > 2012 -x64 > Maya.env


If you need any help, feel free to email me directly at because I went to highs and lows to find a solution and I would want the same done for me. I hope this message finds you if you are looking for a solution.



New Member
Posts: 1
Registered: ‎03-01-2012
Message 69 of 70 (2,474 Views)

Re: Maya 2011 Mac OSX "error 20"

03-01-2012 03:17 AM in reply to: hashim.mundol

Hey guys,


Thanks to all of your advise problem solved.


I did as hashim.mundol wrote in post # 26. and  johnnythaitran in # 68

New Member
Posts: 1
Registered: ‎09-20-2013
Message 70 of 70 (954 Views)

Re: Maya 2011 Mac OSX "error 20"

09-21-2013 12:00 AM in reply to: Learil

This same problem crept up all of the sudden after I had a hard drive die on me. I had just done a batch render that took a couple of days and noticed an error on one of the render layers, so I opened Maya to fix and it gave me this error. I've reinstalled the software, downloaded the latest service pack, I've deleted things from the library etc but no luck. I'm on a Mac, osx 10.8.5. Any help would be appreciated.

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