title: "Application was not installed" Android devices error
body: <p>I have an android application which works perfectly on an AVD using Android 2.3.3, but it fails to install on any devices available for me to test(Sony Ericsson XPeria running Android 2.3.3, LG Optimus running Android 2.3.7 and Samsung Galaxy Tab Android 4.0.3). The error is "Application was not installed". As far as I know it may be connected with incorrect manifest file of an application, so here goes my <code>AndroidManifest.xml</code> if it might help:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.hohlocola"
  android:versionCode="1"
  android:versionName="1.0" &gt;
  
  &lt;uses-sdk android:minSdkVersion="7" /&gt;
              &lt;uses-permission
      android:name="android.permission.INTERNET" /&gt;
  
  &lt;application
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name" &gt;
      &lt;activity
          android:name=".HohloColaActivity"
          android:label="@string/app_name" &gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
  
              &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
          &lt;/intent-filter&gt;
      &lt;/activity&gt;
  &lt;/application&gt;
  </code></pre>
  
  <p></p>
  
  <p>I export my application <strong>unsigned</strong>.<br>
  Thanks in advance!</p>