Why do I get warnings about "File 'codedescriptor.dmr' not found." for each of my referenced models during a top model build?

I have a model containing referenced models. When I try to build the top model for code generation, I get the following warnings:

*** Model reference build : REFERENCED MODEL

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Warning: File 'codedescriptor.dmr' not found.

Warning: File 'codedescriptor.dmr' not found.

Warning: File 'codedescriptor.dmr' not found.

Warning: File 'codedescriptor.dmr' not found.

Why am I getting these warnings and how can I avoid them?

Answer 1

[MathWorks Support Team]

These warnings appear if an unrelated 'codedescriptor.dmr' file is found on the search path during the model build stage. 

These warnings can usually be ignored. Alternatively, you can also avoid them by deleting the unnecessary 'codedescriptor.dmr' files or by making sure they are not on the search path. This issue has been resolved in R2023a, and so updating your release is also an alternative.