title: Old data appearing in R.java
body: <p>I made a mistake an edited a button id instead of the text. It contained special characters and now it's broken. I changed the id and now the new one appears in the R.java file too, but the old one didn't get removed. I tried deleting that  one from the file using a texteditor, but after starting Eclipse it was regenerated and it was there again.</p>
  
  <p>How do I remove that entry from R.java? I've tried cleaning the project.</p>