title: Error [INSTALL_PARSE_FAILED_NO_CERTIFICATES] on one device only?
body: <p>I'm working on an Android app that has was originally released two years ago and has been successfully updated maybe 8-12 times.  While doing internal testing, we found that one of our devices will display this error when we try to install a new APK onto it:</p>
  
  <pre><code>Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES]
  </code></pre>
  
  <p>This error is pretty well documented around the web, and the commonly cited source of the problem is having JDK7 installed on your system, but I am still using JDK6.  </p>
  
  <p>But what is really odd to me is that the APK reports being signed correctly using the "jarsigner" tool, and the APK also installs correctly on three other devices I've tested on.  Only our Droid Pro w/ Android 2.2 seems to be reporting this installation error.</p>
  
  <p>Has anyone else ever run into this issue only occurring on a single device?  It is a bit troubling, but I'm not sure whether it is a problem with the app or a problem with the device.</p>