Build error in Simulink

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Alexander Tuma
Alexander Tuma 2024-2-29
评论： Alexander Tuma 2024-4-12
I have just a S-Function Builder in my model which compiles successfully, but when i try to build the whole model i get the error
Changing property 'MakeCommand' is not allowed
The only "solution" is to make a new blank model and copy the S-Function Builder Block to the new model. This works for some time until it starts to throw the above error.
I would be very grateful for any help.
  2 个评论
akshatsood
akshatsood 2024-3-5
Hi @Alexander Tuma,
Could you please share your model so that I can reproduce the issue on my end.
Thanks
Alexander Tuma
Alexander Tuma 2024-3-15
Hi @akshatsood,
sorry for my late reply. I attached the simulink file.
I don't know if you would need all linked source and header files for the S-Function Builder. If so, i would try to make a minimal example since i have a really big number of source files for my S-Function Builder.
Thanks

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回答（1 个）

Satwik
Satwik 2024-3-28
Hi @Alexander Tuma!
To resolve the issue you are encountering, you might find this MATLAB answer helpful, which outlines steps to address a very similar issue : https://www.mathworks.com/matlabcentral/answers/841420-i-get-the-error-changing-property-unconnectedlinemsg-is-not-allowed-when-using-a-block-from-the
Should this not resolve your issue, please feel free to share your source and header files along with the model, so that I can try to reproduce the issue on my end.
  1 个评论
Alexander Tuma
Alexander Tuma 2024-4-12
Hi @Satwik,
thank you for your replay. Unfortunatelly it does not resolve my problem.
Nevertheless, I came across a workaround. The problem is that when I run the S-Function Builder and then go to Settings/Code Generation, in the grayed out "Make command" field there are additional commands next to make_tct (those used in the S-Function Builder). And Simulink does not allow additional commands there. These additional commands disappear if I briefly switch to another system target file and then back to my actual one. This has the disadvantage that I have to re-enter all non-standard settings.

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