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Why does the Add-On Explorer or Manager not load in R2015b?

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When opening MATLAB Add-ons Explorer or Manager I receive a loading icon indefinitely and the Add-ons Explorer or Manager never loads.

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 5 Mar 2019
Edited: MathWorks Support Team on 5 Mar 2019
There is a bug within MATLAB R2015b that affects the MATLAB Add-ons Explorer and Manager. When either the network license manager or WLAN System Toolbox are installed in the same location as MATLAB it causes the Add-ons Explorer and Manager to load indefinitely.
In order to resolve this issue you can install the patch from:
or perform one of the two steps below:
- Uninstall the network license manager or WLAN System toolbox off the computer running MATLAB and install it on a different computer.
Or, if the network license manager must be on the same machine.
- Uninstall Network License Manager and install to a new location (that is not MATLABROOT).
This is fixed as of R2016a.

  2 Comments

bijan Sakhdari
bijan Sakhdari on 3 May 2018
I get the same error in MATLAB 2018a. This did not resolve my problem
Kyle Perry
Kyle Perry on 4 May 2018
Hello Bijan,
If you are getting this error in R2018a, please contact the Installation support team so we can help resolve the issue.
https://www.mathworks.com/support/contact_us.html

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More Answers (1)

Jay Vaidya
Jay Vaidya on 4 Sep 2020
Please try to run the following in the MATLAB Command Window:
>> opengl software
And then try opening the Add on explorer again. It worked for me.
If that works, you can save the preference so that MATLAB always opens with Software OpenGL by running:
>> opengl('save','software')

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