title: Permission denied causing "Installation failed due to invalid APK file"
body: <p>When I try to run my app on my Nexus 4 running 4.2.1, I kept on getting this error in eclipse: </p>
  
  <pre><code>[2012-12-22 19:30:51 - Rhiokai] Installation failed due to invalid APK file!
  [2012-12-22 19:30:51 - Rhiokai] Please check logcat output for more details.
  [2012-12-22 19:30:51 - Rhiokai] Launch canceled!
  </code></pre>
  
  <p>I tired pushing and installing via adb but it didn't work either. I figured out that it was because of this message in Logcat: </p>
  
  <pre><code>12-22 19:37:29.326: W/zipro(7371): Unable to open zip '/data/local/tmp/Rhiokai.apk': Permission denied
  12-22 19:37:29.326: D/asset(7371): failed to open Zip archive '/data/local/tmp/Rhiokai.apk'
  </code></pre>
  
  <p>Any ideas on how to fix this issue?</p>