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R2020a Update 4 does not work

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Frans Bijkerk
Frans Bijkerk on 20 Aug 2020
Answered: Star Strider on 4 Sep 2020
Hello, I have installed R2020a, and after that I have downloaded the update4 package, followed the instructions for the commandline (offline) update, performed the command in a dos-window and waited untill the update task disapeared in the task-manager.
After starting R2020a again, the red update-sign in the top-right of the matlab window was gone, indicating that there were no updates.
However, when selecting "Manage Add Ons" I get the message:
Dot indexing is not supported for variables of this type.
Error in matlab.internal.addons.AddOnsWindow/bringToFront (line 68)
obj.webwindow.bringToFront();
Error in matlab.internal.addons.Manager/show (line 51)
obj.addOnsWindowInstance.bringToFront();
Error in matlab.internal.addons.launchers.showManager (line 70)
matlab.internal.addons.Manager.getInstance.show(navigationData);
the ver command also shows no update:
>> ver
-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.8.0.1323502 (R2020a)
MATLAB License Number: 503718
Operating System: Microsoft Windows 10 Pro Version 10.0 (Build 18363)
Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
MATLAB Version 9.8 (R2020a)
Simulink Version 10.1 (R2020a)
Control System Toolbox Version 10.8 (R2020a)
Data Acquisition Toolbox Version 4.1 (R2020a)
Image Processing Toolbox Version 11.1 (R2020a)
MATLAB Coder Version 5.0 (R2020a)
MATLAB Compiler Version 8.0 (R2020a)
MATLAB Compiler SDK Version 6.8 (R2020a)
Parallel Computing Toolbox Version 7.2 (R2020a)
Signal Processing Toolbox Version 8.4 (R2020a)
Simscape Version 4.8 (R2020a)
Simscape Electrical Version 7.3 (R2020a)
Simulink Check Version 4.5 (R2020a)
Simulink Coder Version 9.3 (R2020a)
Simulink Coverage Version 5.0 (R2020a)
Stateflow Version 10.2 (R2020a)
>>
can you help me with this?
Best regards,
Frans Bijkerk

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Walter Roberson
Walter Roberson on 21 Aug 2020
In my experience, updates sometimes get listed on the bell before they are available to me.
On occasion, Mathworks has temporarily withdrawn an update after making it available. I do not know if that happened in this case.
Fangjun Jiang
Fangjun Jiang on 21 Aug 2020
@Star Strider, It must be some minor mistake on the Mathworks site. You saw that link and tried installing it. I tried a few times without success. Now that "Update 5" link is gone. I should have taken a snapshot.
Walter Roberson
Walter Roberson on 22 Aug 2020
I saw the Update 5 possibility myself, but it was not available when I went to activate it, and now it is no longer listed. I expect that Mathworks withdrew it due to some problems.

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Answers (2)

Fangjun Jiang
Fangjun Jiang on 20 Aug 2020
Edited: Fangjun Jiang on 20 Aug 2020
Your update is not installed. Should look like this:
>> ver matlab
-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.8.0.1417392 (R2020a) Update 4
Click Help-> Check for Updates. Update 5 is available now. Maybe install it from there.

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Bruno Luong
Bruno Luong on 25 Aug 2020
FYI R2020a Update 5 is pushed today.
Star Strider
Star Strider on 25 Aug 2020
So it is!
Thanks!
Md Noor Islam
Md Noor Islam on 4 Sep 2020
I have updated the MATLAB
ver
-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.8.0.1451342 (R2020a) Update 5
But get the same error when press Add-Ons. Does anyone find any solution?

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Star Strider
Star Strider on 4 Sep 2020
Do not use Add-Ons.
In R2020a, use: Help —> Check for Updates

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