Re: piece of $#!t eclipse can't find the main class

Brandon McCombs <>
Thu, 28 Dec 2006 15:32:41 -0500
Oliver Wong wrote:

"Brandon McCombs" <> wrote in message

At one point tonight Eclipse was working fine. After specifying a separate
output folder for class files (and losing all the files in that folder w/o
Eclipse giving me a chance to do anything with them; I hope i never meet
any of the eclipse developers because they may not live long if I do) I
can't get eclipse to build my application now. I always get the lovely

java.lang.NoClassDefFoundError: org/rekkanoryo/ldapmgr/gui/LDAPMgr
Exception in thread "main"

I don't know why this is happening since that is the class that is found
when I tell eclipse to search for a main class (right click on, goto Run As, then Run to get Run dialog. I've specified the
following in the MANIFEST.MF file which is part of my project:

Manifest-Version: 1.0
Main-Class: org/rekkanoryo/ldapmgr/gui/LDAPMgr
Class-Path: lib/ldap.jar lib/ldapjdk.jar

I don't know where else I have to tell it the path to the main class other
than where I already have.

Any ideas on how I can teach eclipse to work again?

    Did you try cleaning and rebuilding the project? Quitting and restarting
Eclipse? Is your code in CVS or other source code repository?

    - Oliver

I ended up switching the output folder back to the same folder as the
source, and then putting it back to having a separate output folder. I
changed nothing else and after doing that it decided to build again w/o
complaining about the main class. FYI, I didn't restart eclipse and I'm
using subversion. I didn't try cleaning the project.

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