title: Is there a way to delete meta-data on Eclipse run configurations?
body: <p>I may have a corruption problem in Eclipse run configurations. This happened after I dragged (or copy-pasted, I don't remember) a Java class called <code>MyClass</code> from <code>project1</code> to <code>project2</code>. Then I deleted <code>project1</code>. When I create a new run configuration the name given is <code>MyClass (1)</code>. In other words, it thinks there is already a run configuration called <code>MyClass</code>, so the new one will have to have a number appended. (<strong>Edit:</strong> There is no existing <code>MyClass</code> run configuration so there is no apparent reason for the appended number. In fact, I deleted all of my run configurations.)</p>
  
  <p>How can I easily clean up meta-data and be able to build again with minimal manual effort?</p>
  
  <p>If there is a meta-data deletion recommendation that gets rid of more than just run configurations, that probably would still be a good solution, if it does not create a lot of manual work to get set up to work again.</p>
  
  <p><strong>Edit:</strong> The problem might be caused by the fact that there is a launch configuration named <code>MyClass - project1</code> visible in the export dialogue. <code>project1</code> no longer exists, but this remnant lives on, tying up the class name <code>MyClass</code>. I am not sure if there is a difference between a run configuration and a launch configuration.</p>