why this error "Unable to check out the Simulink Coder license which is required to generate code"?

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sneha bharadwaj on 6 Feb 2017

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https://au.mathworks.com/matlabcentral/answers/323541-why-this-error-unable-to-check-out-the-simulink-coder-license-which-is-required-to-generate-code

Edited: Stefanie Schwarz on 11 Oct 2021

I am using s function blocks in my simulink model. I could generate c code from simulink coder before some days but now for the same model i am gettin an error "Unable to check out the Simulink Coder license which is required to generate code"

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Answer 1

cr on 6 Feb 2017

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https://au.mathworks.com/matlabcentral/answers/323541-why-this-error-unable-to-check-out-the-simulink-coder-license-which-is-required-to-generate-code#answer_253488

Edited: cr on 7 Feb 2017

The error pops up when user tries to use a function in an installed toolbox/product but corresponding licence couldn't be found. If you have successfully used the product earlier on the same machine, the licence has probably expired now. In case it is a shared licence Matlab is unable to connect to LM server for checking out a licence or there are too many users checking out the product at the time of licence checkout failure.