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Simulink - 'MaskPortRotation' is read-only?

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Tommi Meriläinen
Tommi Meriläinen on 24 Jan 2023
Answered: Jonathan Agg on 22 Feb 2023
I try create a mask for a subsystem including input and output ports but saving gives an error "SubSystem block (mask) parameter 'MaskPortRotate' is read-only? What does it mean and how to proceed? What should I do to be able to save the mask?
  2 Comments
Jonathan Agg
Jonathan Agg on 20 Feb 2023
Hi Tommi,
Which release do you see this error in?
Jonathan

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Answers (2)

Fangjun Jiang
Fangjun Jiang on 25 Jan 2023
If it is read-only, then leave it alone. Don't try to set it.
  2 Comments
Tommi Meriläinen
Tommi Meriläinen on 30 Jan 2023
Thanks, but I cannot save the mask I created because of the error. What should I do to be able to save the mask?
Fangjun Jiang
Fangjun Jiang on 30 Jan 2023
Edited: Fangjun Jiang on 30 Jan 2023
Can you provide a simplified example model to show the problem?
Or at your Mask Editor dialog, click the "Icon" tab, set "Port Rotation" to "Default".

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Jonathan Agg
Jonathan Agg on 22 Feb 2023
If it occurs again, as a workaround, can you copy the contents of your subsystem into a new subsystem, make a mask on that subsystem, and then replace the original subsystem with the new one? In 22a, the development team are aware of an issue with making masks on subsystems with flexible port placement (subsystems where you have dragged one of the ports around the subsystem boundary to move them), which has been resolved in later releases.

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