Eclipse Error: Could not find or load main class [duplicate]

by

This just happened to me today after updating my JRE. I cleaned the project and it started working again.

Project -> Clean will remove any existing class files and completely rebuild the project. There’s more information on Eclipse’s clean function here.

More Related Contents:

  1. Been staring at my code for an hour and still can't see the issue. Android – Java development [closed]
  2. Even Factorial Method in Java. I have tried everything and can’t figure it out
  3. Access restriction on class due to restriction on required library rt.jar?
  4. Failed to load the JNI shared Library (JDK)
  5. NoClassDefFoundError – Eclipse and Android
  6. How to create a jar with external libraries included in Eclipse?
  7. Any reason to prefer getClass() over instanceof when generating .equals()?
  8. Eclipse 2021-09 code completion not showing all methods and classes
  9. Integrating tomcat and eclipse as a hot-deploy environment
  10. “Unable to acquire application service” error while launching Eclipse
  11. Eclipse Autocomplete (percent sign, in Juno)
  12. How to change an Eclipse default project into a Java project
  13. Eclipse – “Incompatible JVM. Version 1.8.0_261 of the JVM is not suitable for this product. Version: 11 or greater is required”
  14. Attach the Source in Eclipse of a jar
  15. Eclipse memory settings when getting “Java Heap Space” and “Out of Memory”
  16. java.lang.NoClassDefFoundError: org/hibernate/cfg/Configuration
  17. Getting ‘java.lang.UnsatisfiedLinkError’: no lwjgl in java.library.path
  18. Android app in Eclipse: Edit text not showing on Graphical layout
  19. Maven build failed: “Unable to locate the Javac Compiler in: jre or jdk issue”
  20. Java: synchronizing standard out and standard error
  21. Problems with clear case plugin eclipse
  22. Eclipse: change name of existing package with classes inside
  23. How to convert jar to OSGi bundle using eclipse and bndtools
  24. Visual swing in Eclipse
  25. How does Eclipse actually run Junit tests?
  26. java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet error
  27. Easiest way to upgrade eclipse 3.7 to 4.2 (Juno)
  28. How to specify jdk path in eclipse.ini on windows 8 when path contains space
  29. PKIX path building failed in Eclipse
  30. Including external jar-files in a new jar-file build with Ant

Leave a Comment