Coder fails due to missing file that should be read while running

My code has a section that reads a mat file, if it exists, and loads parameters from it. The file should be loaded only if it exists, otherwise just use default values, and no matter if it's matlab code running or the generated one (matlab code works properly).

While trying to generate c code it fails if this file is missing. This file should not be a part of the code generation. Could you help me understand the problem? I'm using version 2015a.

Thanks

Answer 1

[Robert]

You could wrap that part in if isdeployed

[Michael A]

Thanks, but why would it help? The file can be missing or exists no matter if it's running matlab code or the generated code. I'll edit my question so it will be clear.