Question: I have this code <http://jsfiddle.net/8dFVU/> and not sure why it triggers twice when you click on the "show price" I guess it is because the checkbox and label but, why? Thanks.

here is the code

```
(function($){ 
        $(".selector").on('click', function() { 
            console.log(  $(this) );  
            $("#result").val( $("#result").val() +"triggered" );
        });
})(jQuery);

```

Answer: 
Delete .\_LunchList.java (\*all files starting with .\_xyz.java\*) file in the src folder or your package folder. These files are **hidden** so you have to mark option to show hidden files in your file explorer.
Try to fix project properties by right clicking on the project > Android Tools > Fix Project Properties
After that clean your project.
If it doesn't work then try to delete the project and then re-import it.
Check its libraries they could be broken or corrupted.