anchor.diff:  
   *Learn more:*
   
  -* <<jme3/advanced/nifty_gui#,Nifty GUI>>
  +* xref:ROOT:jme3/advanced/nifty_gui.adoc[Nifty GUI]
   
   *Code Sample:*
   
  
positive.code: 
  *Learn more:*
  
  * <<jme3/advanced/debugging#,Debugging>>.
  
  
  == I want to control the camera
  
negative.code: 
  *Learn more:*
  
  * xref:ROOT:jme3/advanced/logging.adoc[Logging]
  
  
  === Why does the executable crash with "Cannot locate resource"?
  