Lİcense file not found

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Alisan Ok
Alisan Ok on 21 Apr 2021
Answered: Shadaab Siddiqie on 28 Apr 2021
when I want to update my license I recieve this error
Update failed because the application could not find a valid license file associated with license number #40790358; the license may have been deactivated on this machine previously.
Contact your system administrator if you need help.

Answers (1)

Shadaab Siddiqie
Shadaab Siddiqie on 28 Apr 2021
From my understanding you want to know more about the error you are getting. An options file (generally called mlm.opt) allows the license administrator(s) to administer licenses for product users. The following are examples of what can be accomplished by an options file:
  • Specify certain users or groups of users for certain products
  • Keep unwanted users from using your licenses
  • Reserve licenses for certain users
For a Network Named User (NNU) licenses, if any licensed product is not specifically assigned to a user, the product will be unusable by any user. Generally, this is represented by an "UNSUPPORTED" message in the license manager log file.
To use an options file you must first define the options file in your license manager license file. To do so edit the line that starts with the word DAEMON. For an example of the DAEMON line:
DAEMON MLM "C:\Program Files\MATLAB\R2021a\etc\win64\mlm.exe"
To use the options file, specify it at the end of the line using the "options=" flag. For example:
DAEMON MLM "C:\Program Files\MATLAB\R2021a\etc\win64\mlm.exe" options="C:\Program Files\MATLAB\R2021a\etc\win64\mlm.opt"
Once you have specified the path to your options file, the file will be read the next time you restart the network license manager.

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