[Dwight]

trying to open my first .jspx file with “myeclipse visual JSF designer” gets “error opening the editor” and details shows java.lang.NoClassDefFoundError: org/jboss/tools/vpe/editor/IVEditor

and the error log also had this:
!MESSAGE Unable to create editor ID com.genuitec.eclipse.jsf.designer.defaulteditor: The editor class could not be instantiated. This usually indicates that the editor’s class name was mistyped in plugin.xml.

(When i created the file, using “New JSP page” wizard, as “ICEFaces JSPX page template”, it apparently opened it using the JBoss Tools JSP Editor. When the layout didn’t match the tutorial, i found a note about using Open with… jsf designer, and got this error.

I installed 6.5.1GA using ArchivedDiscoverySite zip file, on top of an existing Eclipse 3.3 install that already had loads of plugins, including jboss & seam, ruby, mylyn, etc.

my install details:
** System properties:
OS=WindowsXP
OS version=5.1
Java version=1.6.0_07

*** MyEclipse details:
MyEclipse Enterprise Workbench
Version: 6.5.1 GA
Build id: 6.5.1-GA-20080715

*** Eclipse details:
Eclipse Platform
Version: 3.3.2
Build id: M20080221-1800

Eclipse Platform
Version: 3.3.3.r33x_r20080129-_19UEl7Ezk_gXF1kouft
Build id: M20080221-1800

Eclipse Java Development Tools
Version: 3.3.2.r33x_r20080129-7o7jE7_EDhYDiyVEnjb1pFd7ZGD7
Build id: M20080221-1800

Eclipse Plug-in Development Environment
Version: 3.3.3.r33x_r20080129-7N7M5DQVIA_6oJsEFkEL
Build id: M20080221-1800

Eclipse Graphical Editing Framework
Version: 3.3.2.v20080129
Build id: 20080221-1602

Eclipse RCP
Version: 3.3.3.r33x_r20080129-8y8eE9UEUWI6qujeED0xT7bc
Build id: M20080221-1800

Eclipse startup command=-os
win32
-ws
win32
-arch
x86
-showsplash
C:\Programs\eclipse\plugins\org.eclipse.platform_3.3.3.r33x_r20080129\splash.bmp
-launcher
C:\Programs\eclipse\eclipse.exe
-name
Eclipse
–launcher.library
C:\Programs\eclipse\plugins\org.eclipse.equinox.launcher.win32.win32.x86_1.0.3.R33x_v20080118\eclipse_1023.dll
-startup
C:\Programs\eclipse\plugins\org.eclipse.equinox.launcher_1.0.1.R33x_v20080118.jar
-clean
-vm
C:\Program Files\Java\jre1.6.0_07\bin\client\jvm.dll

[Loyal Water]

This is definitely some kind of an installation issue. Im not sure if MyEclipse is conflicting with a pre-installed plugin. Can you switch to a new workspace, create a new project, add a jspx file to it and check if it opens up without issues. In case the problem persists, you might have to go in for a clean install of Eclipse and MyEclipse to a brand new location.

[Dwight]

I tried the new workspace & new project, still got the same error. I even tried setting some Eclipse options i found to not startup a bunch of JBoss and other plugins listed, but to no avail.
I have now re-installed Eclipse & MyEclipse in a new location, new workspace, new project, and it works fine.

[Loyal Water]

Sorry for the hiccup. Glad its working fine now.

[Author]

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