Hi,
for checking the correctness of paths the normal browser developers should be a good help. And for xml syntax error checking also the browser itself can be used - just drop the xml into the browser.
For debugging krpano actions, use the
trace() action and the krpano log and optionally also the console log from the browser itself (by enabling the
consolelog setting).
Offline usage if possible of course, but that's independent of krpano - depending on the browser and its local access restrictions, it might be necessary to use a localhost server for serving the files (that localhost server could be also app-internal).
Best regards,
Klaus