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Home » Newcomers » Newcomers » Could not find or load main class X
Could not find or load main class X [message #1717174] Thu, 10 December 2015 12:35 Go to next message
Eddie Hurley is currently offline Eddie HurleyFriend
Messages: 1
Registered: December 2015
Junior Member

I tried to run a program in my eclipse and I got this message
"Error: Could not find or load main class"
what can I do to fix it?
Re: Could not find or load main class X [message #1717187 is a reply to message #1717174] Thu, 10 December 2015 15:15 Go to previous messageGo to next message
Eric Rizzo is currently offline Eric RizzoFriend
Messages: 3071
Registered: July 2009
Senior Member
You should provide more details about what you've tried, specifically. And the obvious question is, are you certain your class has a proper main() method?
Re: Could not find or load main class X [message #1761242 is a reply to message #1717187] Tue, 09 May 2017 10:50 Go to previous messageGo to next message
Charles Abramo is currently offline Charles AbramoFriend
Messages: 2
Registered: May 2017
Junior Member
I have also received this error for two weeks, since upgrading Java. I deleted Eclipse. Downloaded newest viral protection, scanned entire computer. Rebooted. Downloaded newest version of Eclipse Neon. Corrected all classpaths. Same error. Every time.

The programs worked previously. I right click on main and run as Java application, even. Same error. Every time.

Frustrating. Environment is useless; I can't run anything.
Re: Could not find or load main class X [message #1761279 is a reply to message #1761242] Tue, 09 May 2017 13:21 Go to previous message
Eric Rizzo is currently offline Eric RizzoFriend
Messages: 3071
Registered: July 2009
Senior Member
As I said 2 years ago (above), details are important. Start with showing your eclipse.ini (specifically, are you specifying the -vm parameter) and your project's class that you're trying to run.
Have you tried creating a tiny "Hello, world" program in a new project to see if that works?
The more effort you put into describing a problem, the more effort people here will give to try to help.
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