... then because there's no "unused variable 'errorCode'" warning, I forget to go back and robustify the code Well, you can always assign the error code to '_'

... then because there's no "unused variable 'errorCode'" warning, I forget to go back and robustify the code Well, you can always assign the error code to '_', and then just grep for those later. Or you can take the 10 seconds and just add the code to return the error as sambeau suggests.