Java Error in eclipse: Could not find or load main class length

Question

I was working on eclipse normally. Suddenly, when I try to run I get this error:

Error: Could not find or load main class length

I made sure that the PATH environmental variable contains: C:\Program Files\Java\jdk1.7.0_05\bin

What is the problem please ? I viewed previous posts but nothing help in my situation.

Check if "Build Automatically" is turned off. Use a package and never name classes using lower case! — adarshr
– adarshr, Commented Aug 8, 2012 at 9:16
Solved but don't know the reason. The class was in a project folder marked with red exclamation mark (though it is in the workspace). I moved the code to another project and it worked. Thanks. — Jury A
– Jury A, Commented Aug 8, 2012 at 9:18

Peter Lawrey · Accepted Answer · 2012-08-08 09:17:46Z

1

You are either trying to run a class which no longer exists, or not longer has a main() method or the Run configuration is incorrect.

Do you really have a class called length (all lower case) ? That would be confusing.

answered Aug 8, 2012 at 9:17

535k83 gold badges770 silver badges1.2k bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Yes. It is just testing class to perform a small job.

Try doing cleaning and rebuilding your project.