title: Why do IDEs stick to old code after an error?
body: <p>What is it about IDEs - be it Flash Develop, Flash Builder, Visual Studio or even Eclipse - that makes them stick to the old error even when you delete all the code and start afresh they point out the error that was there previously as though it is there magically invisible all the time..even in your new code.</p>
  
  <p>Its a real bugger for those who don't know the ins and outs of the said IDEs. Once you make an error, that's it! No matter if you delete all the code that was there and simply make it print some lines on the screen you get "Error this..Error that" or the ominous "Build Failed" without giving any info.</p>
  
  <p>Well if anyone has gone through this newbie stage and now know better please point out if its a feature that these IDEs have and how to overcome this thing.</p>