Generic error by MATLAB Coder

I am trying to use the MATLAB Coder app to compile a MATLAB function into C code, but I get the following generic error:

ERROR: "Generation of trial code failed"

When I press the view errors button, nothing is showed.

When I use the "codegen" command for just code generation (without any sort of compiling), I get the following error:

??? CODEGEN requires a MATLAB Coder license.

I have a floating network license. How do I resolve this? 

Answer 1

[MathWorks Support Team]

In R2017a and prior, the issue can occur because of the unavailability of a license. However, the MATLAB Coder app is supposed to warn you about the unavailability of the license. This lack of warning is a known bug and has been fixed for R2017b. For now, you can use the following command as a workaround to ascertain that you have the MATLAB Coder license available before proceeding to the Coder app:

>> license('checkout','MATLAB_Coder')

If you observe the generic error in newer releases, use the "codegen" command instead of MATLAB Coder app to get to the bottom of the issue:

codegen - MATLAB Coder