title: App isn't installed android error
body: <p>I have installed android SDK 5.1 recently after that i am getting new errors which haven't seen before like App isn't installed error.Got this error if user clicks on app icon in device .Could you suggest how to fix this Here is my manifest code </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.srikanth"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="11"
          android:targetSdkVersion="21" /&gt;
  
      &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt;
      &lt;uses-permission android:name="android.permission.CAMERA" /&gt;
      &lt;uses-permission android:name="android.permission.FLASHLIGHT" /&gt;
      &lt;!-- Internet permission --&gt;
  
      &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
      &lt;uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" /&gt;
  
      &lt;application
          android:name="com.srikanth.utils.AppController"
          android:icon="@drawable/icon"
          android:label="@string/app_name"
          android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen" &gt;
          &lt;activity
              android:name="com.srikanth.SplashActivity"
              android:label="@string/app_name"
                android:exported="true"
              android:screenOrientation="portrait" &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="com.facebook.FacebookActivity"
              android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
              android:label="@string/app_name" /&gt;
  
          &lt;meta-data
              android:name="com.facebook.sdk.ApplicationId"
              android:value="@string/APP_ID" /&gt;
  
          &lt;provider
              android:name="com.facebook.FacebookContentProvider"
              android:authorities="com.facebook.app.FacebookContentProvider1234"
              android:exported="true" /&gt;
  
          &lt;activity android:name="com.srikanth.MainActivity" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.DEFAULT" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
          &lt;activity android:name="com.srikanth.EditProfile" &gt;
          &lt;/activity&gt;
          &lt;activity android:name="com.srikanth.UnlockActivity" &gt;
          &lt;/activity&gt;
          &lt;activity android:name="com.srikanth.FacebookFriends" &gt;
          &lt;/activity&gt;
          &lt;activity android:name="com.srikanth.HomeActivity" &gt;
          &lt;/activity&gt;
          &lt;activity android:name="com.srikanth.SplashActivity" &gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  </code></pre>
  
  <p></p>
  
  <p>and here is error report in console </p>
  
  <pre><code>  [2015-04-20 13:01:08 - InstaScene] Starting activity com.instascene.SplashActivity on device EBAZFG148859
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.instascene/.SplashActivity }
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: java.lang.SecurityException: Permission Denial: starting Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.instascene/.SplashActivity } from null (pid=8344, uid=2000) not exported from uid 10131
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at android.os.Parcel.readException(Parcel.java:1472)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at android.os.Parcel.readException(Parcel.java:1426)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at android.app.ActivityManagerProxy.startActivityAsUser(ActivityManagerNative.java:2712)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at com.android.commands.am.Am.runStart(Am.java:680)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at com.android.commands.am.Am.onRun(Am.java:270)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at com.android.internal.os.BaseCommand.run(BaseCommand.java:47)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at com.android.commands.am.Am.main(Am.java:76)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:243)
      [2015-04-20 13:01:09 - InstaScene] ActivityManager: at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>I have checked this problem over stackoverflow and tried solutions but no luck here is reference links i have tried <a href="https://stackoverflow.com/questions/25956967/app-isnt-installed-error">link1</a> <a href="https://github.com/phonegap-build/PushPlugin/issues/151" rel="noreferrer">link2</a></p>