MATLAB: Matlab Coder Error: Cannot Process Options

matlab coder

I am getting a cyptic error when compiling very simple test code. I am running Matlab on a mac.
>> coder -args { 0 } HW -report  
Cannot process options.
function ans = HW(x)
ans = x*2;
end
Running mex -setup returns
>> mex -setup
      Options files control which compiler to use, the compiler and link command
      options, and the runtime libraries to link against.
      Using the 'mex -setup' command selects an options file that is
      placed in /Users/Joseph/.matlab/R2012a and used by default for 'mex'. An options 
      file in the current working directory or specified on the command line 
      overrides the default options file in /Users/Joseph/.matlab/R2012a.
      To override the default options file, use the 'mex -f' command
      (see 'mex -help' for more information).
The options files available for mex are:
    1: /Applications/MATLAB_R2012a.app/bin/mexopts.sh : 
        Template Options file for building gcc MEX-files
    0: Exit with no changes
Enter the number of the compiler (0-1):

Best Answer

You need to run the "codegen" command, not the "coder" command:
     >> codegen -args {0} HW -report
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