In Online MATLAB Simscape models will not run and give error

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Igor
Igor 2025-8-13
回答： Arushi 2025-8-20
Hi,
In Online MATLAB (https://matlab.mathworks.com/) I am trying to run a Simscape example model, and I get an error when running:
Method 'update' is not defined for class 'SSC.SimscapeCC' or is removed from MATLAB's search path.
But when looking at Add-Ons, it shows Simscape installed.
Best regards
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Igor
Igor 2025-8-14
The answer is actually "no", but when I look at the add-ons, it says Simscape is installed.
Torsten
Torsten 2025-8-14
编辑：Torsten 2025-8-14
You need a valid licence to use "Simscape" - it's not enough that it is installed.
The licence associated with your Email-address does not seem to cover "Simscape". Otherwise you should be able to use "Simscape" under MATLAB Online.
Without a licence or a free trial, it's only possible to use Simscape Onramp:
https://matlabacademy.mathworks.com/de/details/simscape-onramp/simscape

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回答（1 个）

Arushi
Arushi 2025-8-20
Hi Igor,
Sometimes testing of specific features can be turned off. You can try enabling them with a toggle using the license function. For example, for Simscape you can do:
license('test','simscape','enable')
license('test','simscape')
if the second command returns 1, the feature is enabled. For more details, have look at the documentation here:
https://www.mathworks.com/help/matlab/ref/license.html
If it still returns 0, then it might be that the toolbox is not installed in your MATLAB Online session. In that case, you can try installing it from the Add-On Explorer:
  • Go to the Home tab > Add-Ons > Get Add-Ons
  • Search for the toolbox you need
  • Click on it and install
I hope this helps, thanks!

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