Hi,
I was installing the DragMath addon and downloaded the file:
dragmathintegration_v0.7.8.1_final.zip
I've intalled it and get the following error:
java.lang.NoClassDefFoundError: Display/DrgmFileFilter
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: Display.DrgmFileFilter
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
... 8 more
Caused by: java.io.IOException: open HTTP connection failed:http://www.homebushbo-h.schools.nsw.edu.au/moodle/lib/DragMath/applet/Display/DrgmFileFilter.class
at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 12 more
Exception: java.lang.NoClassDefFoundError: Display/DrgmFileFilter
Judging by this I reckoned it was a problem with the file :
DrgmFileFilter.jar
So I checked it out and this file does not appear to exist. I looked in the zip file, I downloaded the zip file and it is not there.
Can anyone shed some light on this?
Thanks in advance.
- Ryan
I am concerned that Dragmath did not get installed correctly. Can you tell me exactly what you did when installing?
We just installed Moodle_DragMath_v0.7.8.2_Integration.
It works fine on with IE8 and Firefox on windows but we are getting the same error with Firefox on the Mac.
Exception: java.lang.NoClassDefFoundError: Display/DrgmFileFilter
Thanks for info. Could you zip and post the entire contents of the java console for the developers? I will try to get fix posted ASAP, but you can delete and reinstall 0.7.8.1 in the interim.
John,
I just finished testing DragMath on a Mac and it seemed to initialize just fine, but then appeared to have problems with the drag and drop.
So.... [please clear your cache, check your version of java and let me know what you see.
I just finished testing DragMath on a Mac and it seemed to initialize just fine, but then appeared to have problems with the drag and drop.
So.... [please clear your cache, check your version of java and let me know what you see.
Hi Marc
Yes, as we discussed, it must have been a caching issue.
Our installation of Dragmath(v0.7.8.2) is working fine now on the mac(both Firefox and Safari).
No problems on windows(IE and Firefox) either.
Thanks!