title: How to run minecraft in Debug mode
body: <p>I'm not even sure if you can ask this question here but I have the MCP which decompiles Minecraft code and allows you to edit it using eclipse. As you may know in Eclipse there is a feature called debug mode, whenever I click it, it says in the console.</p>
  <pre><code>Error: Could not find or load main class Start
  Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
  </code></pre>
  <p>I went to the Start.java file and tried the debug button again but it didn't work
  so I was just wondering if you guys know any way around it, The MCP is for 1.7.10 and it's default, not Minecraft Forge. If this is not the right place to ask just ignore it.
  `</p>