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copied!<p>I'm also new to android and I'm still running into into this problem (running SDK 3, Version: 10.0.0.v201102162101-104271). I've tried this procedure with mixed results: <a href="http://developer.android.com/resources/faq/troubleshooting.html#eclipse" rel="nofollow">Eclipse isn't talking to the emulator FAQ</a>. It's not clear to me whether or not it's OK to have multiple copies of an app on the (emulator?) target. I wouldn't think so but, while I have seen this output in my /data/app directory (see below) it's possible that was a transient state.</p> <blockquote> <pre><code>root@android:/data/app # ls ls ApiDemos.apk CubeLiveWallpapers.apk GestureBuilder.apk SoftKeyboard.apk WidgetPreview.apk com.example.helloandroid-1.apk com.example.helloandroid-2.apk vmdl-206041726.tmp </code></pre> </blockquote> <p>I think that, by observing the logcat output, most of the times that I've seen that failure there was a failure to uninstall the older version of the app. But, being a newbee, I can't be sure.</p> <p>I read that you can go into the /data/app directory (run 'adb shell' then 'cd /data/app') and delete the ...helloandroid-x.apk file before attempting to install the new apk. I haven't tried that approach yet.</p> <p>Finally you can uninstall using this approach: adb uninstall com.example.helloandroid</p> <p>If this helps you'll be luck not to run into the problem I'm having now, which is: I can't get the app to start from eclipse so I can't debug/step through code.</p>

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