Could you please try your double click trick again but this time using file names without blanks (space character) and other special characters in it, please?
What's your current version of OS X and hugin? Could you please also try other file formats like JPG or TIFF? And is there a reason why you provoke hick ups by renaming files?
I see a remark in your error message that says:
Unable to open file ''
Could you please try your double click trick again but this time using file names without blanks (space character) and other special characters in it, please?
See http:// wiki.panotools. org/Hugin_ FAQ#Special_ Characters_ in_Paths
What's your current version of OS X and hugin? Could you please also try other file formats like JPG or TIFF? And is there a reason why you provoke hick ups by renaming files?