Application is not installed
<p>I test my application in android phone. it's a unsigned application export from eclipse.
When i installed the application in phone it's shows user permisson messages. then finally i got a message application not installed. here my mainfest code</p>

<pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="org.z_enterprise.praywithme"
    android:versionCode="1"
    android:versionName="1.0" 
    android:installLocation="preferExternal" &gt;

    &lt;uses-sdk android:minSdkVersion="2" /&gt;
     &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
    &lt;application
        android:icon="@drawable/appicon"
        android:label="@string/app_name" &gt;
        &lt;activity
            android:name=".main"
            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;activity
            android:name=".about"
            android:label="@string/app_name" &gt;
        &lt;/activity&gt;

             &lt;activity
            android:name=".favour"
            android:label="@string/app_name" &gt;
        &lt;/activity&gt;
&lt;/application&gt;

&lt;/manifest&gt;
</code></pre>
