Could not find or load main class QuartsToGallons

[zixuan8368]

PS C:\Users\ZIXUAN8368\Desktop\Java\Chapter2> cd "c:\Users\ZIXUAN8368\Desktop\Java\Chapter2" ; if ($?) { javac QuartsToGallons.java } ; if ($?) { java QuartsToGallons } Error: Could not find or load main class QuartsToGallons Caused by: java.lang.NoClassDefFoundError: QuartsToGallons (wrong name: Chapter2/QuartsToGallons)

I am new to VS Code and i couldn't figure it out how to solve this, i will need some help

[testforstephen]

pls share the specific steps to reproduce your issue.

[zixuan8368]

[github-actions[bot]]

Hi @zixuan8368, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

Solution

• Verify whether your QuartsToGallons.java file declares a package. If it begins with

  package Chapter2;
  

  then you must:
  1. Compile from the folder above Chapter2:

     cd C:\Users\ZIXUAN8368\Desktop\Java
     javac Chapter2\QuartsToGallons.java
     

  2. Run it by its fully-qualified name:

     java Chapter2.QuartsToGallons
     

• If you don’t intend to use packages, remove or comment out the package Chapter2; line and then recompile & run from within the same directory:

  cd C:\Users\ZIXUAN8368\Desktop\Java\Chapter2
  javac QuartsToGallons.java
  java QuartsToGallons
  

Other references with high confidence

• Java does not execute unless package statement is commented out
  Demonstrates how a package declaration forces you to run the class using its package-qualified name (or from the correct parent folder).
  https://github.com/redhat-developer/vscode-java/issues/877

The team will respond to your issue shortly. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or incorrect, please give it a 👎. Your feedback helps us improve!