Installation Guide for pc

License File Could Not Be Updated
You can receive this error message when you are using the installer to update 
your licenses. (This installer option is available on the More Options... dialog 
box.) 
There are two reasons why you received this message:
• The license file (
license.dat
) in the 
$MATLAB\bin\win32
directory is invalid. 
• You have multiple valid license files in the specified directory (e.g., 
demo.lic
and 
license.dat
).
Failure Overwriting an Existing Toolbox
Stop any versions of MATLAB or a toolbox that may be running before 
attempting to run the installation procedure.

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License Manager Error Messages
4-5
License Manager Error Messages
After a successful installation, you may encounter problems starting MATLAB. 
Many of these problems have their root in the license manager used by the 
MathWorks products, FLEXlm. This section provides information about some 
of the more common license manager errors, listed in this table by error 
number.
License Manager Error
“License Manager Error -2: Invalid License File Syntax” on page 4-6
“License Manager Error -3: Cannot Connect to a License Server” on 
page 4-7
“License Manager Error -5: License Checkout Failed. No Such Feature 
Exists.” on page 4-7
“License Manager Error -8: Invalid (Inconsistent) License Key” on page 4-8
“License Manager Error -9: Invalid Host. License Checkout Failed.” on 
page 4-8
“License Manager Error -10: Feature Has Expired” on page 4-9
“License Manager Error -11: License Checkout Failed. Invalid Date Format 
in License File.” on page 4-9
“License Manager Error -12: License Checkout Failed. Invalid Return Data 
from License Server.” on page 4-9
“License Manager Error -13: No SERVER Line in License File” on 
page 4-10
“License Manager Error -14: Cannot Find SERVER Hostname in Network 
Database” on page 4-10
“License Manager Error -15: Cannot Connect to License Server” on 
page 4-11
“License Manager Error -16” on page 4-11

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