[Jorge Vicens]

Whenever I open a second instance of MyEclipse to work on a different workspace, my ant builds stop running.

I get the following error when I run a build.xml…

Java Virtual Machine Launcher:
Could not find the main class. Program will exit.

Does anyone have an idea of how to get around this most annoying problem?

Thanks.

[Ton Huisman]

Most likely your system is out of resources. Please disclose specs (systemhardware) and settings (MY memory parameters) so we can compare.
I’ve only been able to ‘recover’ from this message by closing all instances of MyEclipse, and restarting them one by one. Most I could open on a 3 GB machine was 3, and 4 on a Vista x64 with 4 GB of ram (and VMWare & most other apps turned off) running 32 bit instances of ME with the default memory parameters.

HTH
Ton

[Loyal Water]

What version of MyEclipse are you working with? Can you go to MyEclipse > Installation Summary > Installation Details and paste the details here for us.

[Jorge Vicens]

*** Date:
Monday, July 27, 2009 3:34:21 PM EDT

** System properties:
OS=WindowsXP
OS version=5.1.0
Java version=1.5.0_11

*** MyEclipse details:
MyEclipse Enterprise Workbench
Version: 7.1
Build id: 7.1-20090306

*** Eclipse details:
MyEclipse Enterprise Workbench

Version: 7.1
Build id: 7.1-20090306

Eclipse startup command=-os
win32
-ws
win32
-arch
x86
-showsplash
-launcher
C:\Genuitec\MyEclipse 7.1\myeclipse.exe
-name
Myeclipse
–launcher.library
C:\Genuitec\MyEclipse 7.1\../Common\plugins\org.eclipse.equinox.launcher.win32.win32.x86_1.0.101.R34x_v20080731\eclipse_1115.dll
-startup
C:\Genuitec\MyEclipse 7.1\../Common\plugins\org.eclipse.equinox.launcher_1.0.101.R34x_v20080819.jar
-clean
-configuration
C:\Genuitec\MyEclipse 7.1\configuration
-vm
C:\java\jre1.5.0_11\bin\client\jvm.dll

I downgraded from 7.5 to see if the problem would go away, but it does not.

[Loyal Water]

propMaster,
Can you answer Ton’s question for me. This issue seems like a straight eclipse issue to me.

[Jorge Vicens]

I am on a quad core laptop with 4GB ram. This problem started when I upgraded from MyEclipse 5.x to 7.1

What other information do you need? Please include information on how to get it.

[support-joy]

How did you upgrade from MyEclipse 5.x to 7.1? Please understand that the base eclipse for 5.1 is different than 7.1. It is recommended to install a separate MyEclipse 7.1 instead of upgrading from 5.x to 7.1.

I would recommend you to perform a clean install.
1. Run the uninstaller.
2. Make sure the MyEclipse Install Directory has been completely removed
2.1. Pulse Install Directory, on XP it’s under C:\Program Files in \Pulse or \Genuitec, and on Vista it’s under \AppData\Local and then under \Pulse or \Genuitec again
3. Then make sure the pulse2.locator file under is erased as well

Next download the manual installer from the MyEclipse download page. It’s listed as option #5. This is simply Eclipse 3.4.2 with MyEclipse installed off an archived update site that is included in the download. Simply unzip it and run ‘eclipse.exe’ and you’re done.
Let me know how this works for you.

[Author]

Posts