title: Unable to build: the file dx.jar was not loaded from the SDK folder in my eclipse
body: <p>I am getting this error </p>
  
  <pre><code>Description Resource    Path    Location    Type
  Unknown error: Unable to build: the file dx.jar was not loaded from the SDK folder! Sample1     Unknown Android Packaging Problem
  </code></pre>
  
  <p>before some time it was working fine for me and I think due to some virus or something my setup got effected please help me on this???</p>