MATLAB: Do I receive an error when attempting to start MATLAB 7.6 (R2008a)

MATLAB

When starting MATLAB on my Windows machine I get a standard Windows crash notification.

ERROR: MATLAB has encountered a problem and needs to close

If I view the details, the crash indicates an issue with Module msvcr80.dll or msvcr71.dll.

Best Answer

This bug has been fixed in Release 2009a (R2009a). For previous product releases, read below for any possible workarounds:

This issue was a bug in license file generation. This issue may occur if you activate MATLAB 7.6 (R2008a) with an R2008b license file. MATLAB 7.6 (R2008a) has an issue in the licensing code where an R2008b license file may cause MATLAB to crash.

If you are experienceing this issue, there are a few workarounds:

1. Reactivate MATLAB automatically using the Internet:

If your machine has Internet connection and you have activation permissions, you can reactivate the license automatically. To do so:

- Navigate to your $MATLABROOT\licenses folder (where $MATLABROOT is your MATLAB installation folder)

- Delete (or move to another folder) any file that starts with the word license (ex: license_mycomputer_R2008a.lic)

- Go to the Start menu to MATLAB > R2008a > Activate MATLAB R2008a

- Choose to activate automatically using the Internet

- Log into your MathWorks account and complete the activation.

MATLAB should now launch normally.

2. Reactivate MATLAB manually:

Following a similar procedure to option 1, you can obtain a new R2008a license file from the License Center and update MATLAB with that license file. To do so:

- Go back to the License Center and reactivate the same Host ID, choosing the R2008a as the release to activate.

- Download the new R2008a license file (license.dat) to your machine .

- Navigate to your $MATLABROOT\licenses folder (where $MATLABROOT is your MATLAB installation folder).

- Delete (or move to another folder) any file that starts with the word license (ex: license_mycomputer_R2008a.lic).

- Save the new license.dat file in your $MATLABROOT\licenses folder.

MATLAB should now launch normally.

3. Point MATLAB directly to your licenses folder:

Using this workaround involves modifying the shortcut you use to start MATLAB to point directly at the licenses folder. To do so:

- Right click on your shortcut to MATLAB

- Right Click and select Properties

- Locate the Target field. Generally this should be set to:

"$MATLABROOT\R2008a\bin\matlab.exe"

(where $MATLABROOT is the installation folder for MATLAB on your machine)

- To point to the licenses folder, you will need to append a space, -c, another space, and the path to the licenses folder ($MATLABROOT\licenses). For example:

"C:\Program Files\MATLAB\R2008a\bin\matlab.exe" -c "C:\Program Files\MATLAB\R2008a\licenses"

- Press OK to save the changes.

MATLAB should now launch normally.

If you continue to experience an issue starting MATLAB, contact the Installation and Licensing team here:

https://www.mathworks.com/support/contact_us.html

Related Solutions

MATLAB: Do I receive License Manager Error -21

This error occurs when attempting to launch MATLAB with a license file that was generated for an older release. See the information below in order to resolve this issue:

Network based licenses:

This error can occur when the version of MATLAB is newer than the version of the license file (license.dat) on the network license manager machine. To resolve this issue, update the license.dat file and/or license manager on the license manager machine to the latest release that you are licensed for. Contact your license administrator to make the updates.

The license.dat file on the server machine is located in:

 $MATLABROOT/etc ($MATLAB\flexlm for releases prior to R2010b on Windows)

(where $MATLAB is the MATLAB installation directory)

NOTE: Once you have made changes to your license file, be sure to restart the license manager for these changes to take effect. For more information on how to restart the license manager, see the Related Solution linked below.

Also, if you are using MATLAB R2007b or earlier, make sure the license.dat file on the MATLAB client is in the following format:

 SERVER <hostname> <HostID> <port>
 USE_SERVER

<hostname> is the hostname of the license server

<HostID> is the HostID of the license server

<port> is the number for license manager daemon (lmgrd)

The license.dat file on the client machine is located in:

Windows

---------

 $MATLABROOT\bin\win32 (for 32-bit MATLAB)
 $MATLABROOT\bin\win64 (for 64-bit MATLAB)

Linux/Unix/Mac

------------------

 $MATLABROOT/etc

(where $MATLABROOT is the MATLAB installation directory)

Standalone based licenses:

If you are receiving this error on Stand Alone installation of MATLAB and have attempted to install from downloaded file, then this error may occur if you have multiple versions of MATLAB downloaded into the same folder. The workaround for this issue is to uninstall and reinstall using fresh downloads.

MATLAB Student Version:

You may receive this error if you have multiple serial numbers for multiple releases, and you use the wrong serial number to activate. To resolve this issue, you will need to reactivate. See the Related Solution for the instructions on how to reactivate the Student Version.

MATLAB: Do I receive an error 956 when trying to activate

This error occurs when trying to activate a network license in the activation client. For a network license, only the license server machine is activated. The client installations are not activated.

To avoid this error, exit the activation client and save a copy of your license server's license.dat file into the $MATLABROOT\licenses folder (where $MATLABROOT is the directory where MATLAB is installed).

For more information about activating a network license, see the related solution "How can I obtain my Concurrent or Network Named User license file for R2008a and higher?"

For more information about installing on a client machine, see the related solution: 1-3UVPJX - "How do I install a MATLAB client for a network license?"

Best Answer

Related Solutions

MATLAB: Do I receive License Manager Error -21

MATLAB: Do I receive an error 956 when trying to activate

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