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simulink_hdl_coder says unable to check out license, even though the tool has that license checked-out

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Douglas Fritz
Douglas Fritz on 29 May 2020
Commented: Stefan Griebel on 19 Aug 2021
We have a user who is trying to use Matlab (concurrent licenses all on maintenance) under Linux, with Simulink and Simulink_HDL_Coder. The user is able to successfully obtain all three licenses. But when they try to generate the HDL code, the tool gives an error, “Unable to check out a license for HDL Coder”. This is in spite of the fact that we can see the user has the license checked-out.
Please help us resolve this issue.
Thanks

Answers (2)

Kiran Kintali
Kiran Kintali on 1 Nov 2020
We are not aware of such license checkout issue.
Please reach out to support@mathworks.com if you continue to face issues and for licensing help.
  2 Comments
Stefan Griebel
Stefan Griebel on 19 Aug 2021
Another user had the matlab_coder license checked out and stuck even though he exited Matlab. Generating HDL requires both matlab_coder and simulink_hdl_coder. I had to have our IT dept do a hard-restart of the Matlab license server, which fixed the problem.

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