title: Setting up Eclipse with Lua for the first time
body: <p>I'm trying to set up the <a href="http://www.eclipse.org/koneki/ldt/" rel="nofollow">Lua Development Tools / Koneki</a> for the first time. I'm new to Eclipse, but I've made a bunch of Lua programs from the command line before.</p>
  
  <p>Hopefully my problem is a generic Eclipse one that someone might be able to help with.</p>
  
  <p><strong>What I did:</strong></p>
  
  <p>After downloading LDT, I followed the short <a href="http://wiki.eclipse.org/Koneki/LDT/User_Guide#Execution_Environment" rel="nofollow">set-up guide</a>. I downloaded the suggested <a href="http://sierrawireless.github.com/lua-execution-environments/" rel="nofollow">Lua 5.1 zip</a>. I added 5.1 as an execution environment following the set-up guide.</p>
  
  <p><strong>Problem:</strong></p>
  
  <p>I cannot run any Lua projects. When I hit the green Run or Debug buttons, Koneki says "This selection cannot be launched, and there are no recent launches." It seems this is a generic Eclipse error.</p>
  
  <p>When I click the drop-down arrow on the Run button, only "Run configurations" is available, and on that Run Configurations pane I cannot add a run configuration, the New button is greyed out.</p>
  
  <hr>
  
  <p>Please can someone give more information on how to debug or fix this kind of error in Eclipse? I get the feeling I've missed some step that might be obvious to people who know Eclipse.</p>