To clean a project

Cleaning a project discards all build problems and build states.
By default Eclipse automatically builds a project every time you save resources, but doesn't clean it.
Tip: To turn off automatic building, select Window > Preferences > General > Workspace and clear the Build automatically check box.
  1. Make sure your project is highlighted in the COBOL Explorer view, and click Project > Clean .

    The Clean wizard is displayed.

  2. If you have not configured Eclipse to build automatically you will have the additional options:
    • Clean all projects
    • Start a build immediately
    • Build the entire workspace
  3. Click OK.