X-1.0rc3 Can't use IDE anymore

[Paul Bellamy]

MAC OSX 10.6.8 64 bit

This is a major bummer... I can't launch the IDE anymore. It was working fine for days and then just stopped. Now, when I try to launch it, I get the following error:

"Cannot Launch Java Application

Uncaught exception in main method: java.lang.NullPointerException"

No idea why this might be happening... it came out of nowhere. I've reinstalled both Java and Sikuli, with no luck.

[Paul Bellamy (pbellamy)]

I can still launch scripts from the command line, but IDE doesn't work.

[Paul Bellamy (pbellamy)]

I was able to resolve the problem by uninstalling Sikuli, installing an older version (rc2), launching it, then closing and reinstalling rc3.

[RaiMan (raimund-hocke)]

Your solution suggests that it is a problem based on the new feature "restart last session".

see faq 1766: On Mac one could always try to reset Sikuli by deleting

org.sikuli.ide.plist in ~/Library/Preferences

[Paul Bellamy (pbellamy)]

I was able to reproduce this... I believe I caused it when I manually deleted an unused png from a .sikuli package... which Sikuli then tried to open when it attempted to restart the last session. Deleting unused images wasn't a problem in RC2, but now it appears to cause this issue.

Is there a better way to remove unused image files? Sometimes Sikuli seems to delete them automatically, other times they sit around indefinitely, taking up space.

[Paul Bellamy (pbellamy)]

FYI, deleting org.sikuli.ide.plist does indeed resolve the issue as you suggest.

[RaiMan (raimund-hocke)]

--- delete unused images
normally, images that are not referenced in the script are deleted, when you save a script. If you realize, this is not done, try to change something (e.g. add a comment) and save it again.