title: Eclipse wont let my app run
body: <p>I'm trying to install the app I making on my phone. But I keep getting an error</p>
  
  <pre><code>Installation error: INSTALL_PARSE_FAILED_NO_CERTIFICATES
  </code></pre>
  
  <p>I'm using Eclipse. I've never seen this problem before. I have run my app on my phone hundreds of times. No apparent errors exist in any files of my project. I edited the Manifest file upping the version, but it didnt work. I cleaned my project. I uninstalled the current version of my app from my phone. But none of this works.</p>
  
  <p>I have absolutely no idea what the problem is. The LogCat claims it is a problem with my main.xml file.</p>
  
  <pre><code>ERROR/PackageParser(956): Package ##MY PACKAGE NAME has no certificates at entry res/layout/main.xml; ignoring!
  </code></pre>
  
  <p>I havent touched this file so I dont know what could be the problem.</p>
  
  <p>UPDATE: Things got more confusing. Before the problem occured I drag-n-dropped a few png files into the drawable folder (where there are already a few). After pulling my hair out it dawned on me the problem might be these files. I deleted them all (5 in total) and it works now. Only problem is I dont know why they screwed up installation. </p>