could not run programs on eclipse android
<p>I am facing some problem while running my android program.It was working fine, recently I upgraded to android 3.1 ( window->android sdk and avd ->available packages , and installed).
Now when i try to run, it is giving following error.</p>

<pre><code>'Launching New_Configuration' has encountered a problem.  An Internel error occured during 'Launching New_Configuration' 
Details &gt;&gt; An internal error occurred during: "Launching New_configuration".
com/android/ddmlib/InstallException
</code></pre>

<p>Kindly help me to solve this.
Thanks </p>
