Comments on: Bleeding Edge reprap software.

By: Giles

Giles — Mon, 22 Feb 2010 13:36:09 +0000

I understand that most people probably use Eclipse IDE to compile this source. I just wanted a neat way of doing it wihtout needing the IDE. As I understand, by adding the attributes to the build-user.xml file the said manifest file is automatically generated by ant. My solution works, but no doubt there are many ways to achieve the same thing.

By: Paulo Faria

Paulo Faria — Sun, 21 Feb 2010 23:12:52 +0000

You normally use http://en.wikipedia.org/wiki/Manifest_file to declare classpath in jars.

Your ide should do that automatically if you use it.

I don't remember how to do it from the command line. IF you need to do it manually the look here http://en.wikipedia.org/wiki/Classpath_%28Java%29#Setting_the_path_in_a_Manifest_file

By: Giles

Giles — Sat, 20 Feb 2010 12:18:19 +0000

Just remembered that the reason I wanted to post this was because I kept getting runtime errors, it turns out that when you run java with the -jar commandline option it ignores CLASSPATH environment variable aswell as ignoring the -classpath command line argument, so the only way to get it to work was to include the class path in the manifest of reprap.jar

The error I kept getting was:

Exception in thread "RepRap" java.lang.NoClassDefFoundError: javax/vecmath/Color3f
at org.reprap.Preferences.(Unknown Source)
at org.reprap.machines.MachineFactory.create(Unknown Source)
at org.reprap.Main.(Unknown Source)
at org.reprap.Main$10.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:226)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:602)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)
Caused by: java.lang.ClassNotFoundException: javax.vecmath.Color3f
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:264)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:332)
... 12 more

Hopefully google will pick this up, and if anyone has the same problem then this post will be of use.

By: BodgeIt

BodgeIt — Sat, 20 Feb 2010 03:18:40 +0000

Just catching up on your posts its looking good..

I need to decide on which OS to use next Windas or Ubuntu.. Just download Ubuntu 9.1

Oh and I got 4 of those Thermistors you found at Farnell thank they look good.. nice long leads too