Why do I receive the error "Unable to determine function name..." when I try to compile a function from a toolbox using MATLAB Compiler?

I am trying to use MATLAB Compiler to create a compiled application from a MATLAB program that calls the function LSQCURVEFIT from the Optimization Toolbox. When I try to compile, I receive the following error:

ERROR: Unable to determine function name or input/output argument count for function  in MATLAB file "C:\MATLAB\R2009a\toolbox\optim\optim\lsqcurvefit.m".  Please use MLINT to determine if this file contains errors. ??? Error using ==> mccError executing mcc, return status = 1 (0x1).

Answer 1

[MathWorks Support Team]

This error is most likely caused by a licensing issue (most probably because all concurrent licenses are already in use). Please check in MATLAB whether a license is available for the toolbox.

For example, while using LSQCURVEFIT which belongs to the Optimization Toolbox, use either:

license checkout Optimization_Toolbox

or:

which -all lsqcurvefit