If optipng and imagemagick aren't installed, then an obscure error message is given

[jwir3]

I'm using Mac OSX El Capitan. If neither ImageMagick nor OptiPNG are installed, and one of these checkboxes is selected when attempting to export, a subprocess python exception is given. This is pretty obscure, and took me a while to figure out what was wrong.

In the ideal case, an installation script for this plugin should be available which would automatically install whichever the user selected. In lieu of this, though, it would be better if the error message was a little clearer.

[ciani]

Hi there,

This continue happen on Windows version, if you mark optipng or imagemagic and they are not installed, the extension shows the following error:

Traceback (most recent call last): File "android_export.py", line 185, in if options.optimize and not checkForPath("optipng"): File "android_export.py", line 35, in checkForPath ], stdout=DEVNULL, stderr=subprocess.STDOUT) File "C:\Program Files\Inkscape\python\Lib\subprocess.py", line 480, in call return Popen(*popenargs, **kwargs).wait() File "C:\Program Files\Inkscape\python\Lib\subprocess.py", line 633, in init errread, errwrite) File "C:\Program Files\Inkscape\python\Lib\subprocess.py", line 842, in _execute_child startupinfo) WindowsError: [Error 2] El sistema no puede encontrar el archivo especificado

Thanks for your extension