Java Virtual Machine - Cannot find main class error

Hi there,

This past week I had a huge virus/trojan issue which Chaslang helped me solve - he was awesome.

I have a new problem now. I tried to install Azureus but got a "Java Virtual Machine error that said: Cannot Find Main Class". As part of the malaware removal, I was to remove the Java that was on my computer and replace it with the Sun Java. Maybe I did something incorrectly?

Any suggestions would be much appreciated.

 

You installed java 5 release 9?
http://majorgeeks.com/download.php?det=4648

What OS are ye using? OS=windows 98, me, 2k, xp, etc....

 

Yup that's the one.

 

Oh and I'm using XP Home.

 

Update 10 was released today, try removing all previous versions and install Update 10 from here

http://www.majorgeeks.com/Sun_Java_Runtime_Environment_d4648.html

 

Got the new Java but still get the exact same error when I try to install Azureus. "Java Virtual Machine. Cannot find main class. Program will exit."

 

Did you successfully remove all previous versions ?

 

Yes I did.

 

I found this relating to my problem but I don't know what it means

Your error message suggests that you have something missing or in error with the installation of the Microsoft version of the java virtual machine.

With the sun version of the java virtual machine, that type error message means the CLASSPATH environment variable is not set.

In most cases, the error means that the classpath does not point to the current directory which is denoted by "." or a period within quotes.

Setting the classpath depends on the operating system you are running with. Its pretty easy on Windows XP or 2000 Pro. You can create an environment variable called CLASSPATH and set it equal to "." in the Systems advanced settings, environment variables.

Older operating systems had an autoexec.bat file under c:\ that can be edited in Notepad, adding the single line:
CLASSPATH=".";
then reboot the PC.

 

Its worth trying. Are you on xp?

Start --> Settings --> Control Panel

Double Click on System

Click on the Advanced tab

Click Environment Variables

Click New (under system variables)

Set the Name and value above, not the value is just a dot without quotes.

Apply and restart, let me know how you get on.

 

Yeah, it didn't do anything. Grrrr. Very frustrating.

 

sounds to me like you have remenants of the MS virtual machine left on there, do you have any startup entries relating to java?

 

Sorry I'm a dummy. How would I check that?

 

Have a look at the information here on the java site

http://www.java.com/en/download/help/wjview.xml

 

Nope. Only Java related thing I see in there is the one for Sun Java version 10.

 

ok, perhaps this one will help!

http://www.azureuswiki.com/index.php/Clean_install

 

Same problem.

 

Same problem.

 

@ matt,

Does it use the Windows Installer? Maybe the Cleanup Utility might help? Just a guess and something different to try at this point.

Steve

 

I'll give it a try!

 

Thanks steve! Im kinda running out of ideas myself

Let us know how you get on ophie

 

Here it is, just run it and see if it list Azureus.

http://support.microsoft.com/kb/290301

Steve

 

Nothing for Azureus. But that's not surprising since I've not successfully installed it. When I try to run the Azureus .jar is when I get the error message. I don't see any other Java related things in the list. Also, I tried to run System Restore back to a system checkpoint before I removed the microsoft Java and installed the Sun Java and it wouldn't restore to that point.

 

Would this log help?

 

um jar? its not a binary?

Please sho me what you have downloaded, im pretty sure the installer should be an exe

 

The file won't upload but its called:

Azureus2.5.0.0.jar

And I downloaded it from:

http://www.majorgeeks.com/download.php?det=5053

 

hmm try downloading the installer from here

http://prdownloads.sourceforge.net/azureus/Azureus_2.5.0.0_Win32.setup.exe

 

Well.... that worked I have Azureus now and it seems to be working. I guess its .jar files that I can't execute?? Anyway, thanks so much for all your help it is MUCH APPRECIATED. You guys are the best.

Ophie

 

No problem! We got there in the end

 

Well done matt.

Steve

 

You helped by suggesting installer steve! I wouldn't have noticed the .Jar file if it wasn't from that!

Thank YOU!