app crashes when clicking back button.

My ribbit app crashes when I click the back button. I changed the name in my app to Textly. I've followed everything else the same way as the videos. This is what I'm getting in my logcat:

05-02 07:12:41.329: E/NavUtils(8934): getParentActivityIntent: bad parentActivityName 'com.jordanpeterson.textly.MainActivity' in manifest 05-02 07:12:41.329: W/dalvikvm(8934): threadid=1: thread exiting with uncaught exception (group=0x40aaf1f8) 05-02 07:12:41.329: E/AndroidRuntime(8934): FATAL EXCEPTION: main 05-02 07:12:41.329: E/AndroidRuntime(8934): java.lang.IllegalArgumentException: Activity ViewImageActivity does not have a parent activity name specified. (Did you forget to add the android.support.PARENT_ACTIVITY <meta-data> element in your manifest?) 05-02 07:12:41.329: E/AndroidRuntime(8934): at android.support.v4.app.NavUtils.navigateUpFromSameTask(NavUtils.java:178) 05-02 07:12:41.329: E/AndroidRuntime(8934): at com.jordanpeterson.textly.ui.ViewImageActivity.onOptionsItemSelected(ViewImageActivity.java:50) 05-02 07:12:41.329: E/AndroidRuntime(8934): at android.app.Activity.onMenuItemSelected(Activity.java:2508) 05-02 07:12:41.329: E/AndroidRuntime(8934): at com.android.internal.widget.ActionBarView$3.onClick(ActionBarView.java:166) 05-02 07:12:41.329: E/AndroidRuntime(8934): at android.view.View.performClick(View.java:3511) 05-02 07:12:41.329: E/AndroidRuntime(8934): at android.view.View$PerformClick.run(View.java:14111) 05-02 07:12:41.329: E/AndroidRuntime(8934): at android.os.Handler.handleCallback(Handler.java:605) 05-02 07:12:41.329: E/AndroidRuntime(8934): at android.os.Handler.dispatchMessage(Handler.java:92) 05-02 07:12:41.329: E/AndroidRuntime(8934): at android.os.Looper.loop(Looper.java:137) 05-02 07:12:41.329: E/AndroidRuntime(8934): at android.app.ActivityThread.main(ActivityThread.java:4429) 05-02 07:12:41.329: E/AndroidRuntime(8934): at java.lang.reflect.Method.invokeNative(Native Method) 05-02 07:12:41.329: E/AndroidRuntime(8934): at java.lang.reflect.Method.invoke(Method.java:511) 05-02 07:12:41.329: E/AndroidRuntime(8934): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:3151) 05-02 07:12:41.329: E/AndroidRuntime(8934): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:2918) 05-02 07:12:41.329: E/AndroidRuntime(8934): at dalvik.system.NativeStart.main(Native Method)

This is my manifest file:

<?xml version="1.0" encoding="UTF-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.jordanpeterson.textly" android:versionCode="1" android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="14"
    android:targetSdkVersion="19" />

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<uses-feature
    android:name="android.hardware.camera"
    android:required="true" />

- <application android:name="com.jordanpeterson.textly.TextlyApplication" android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name"

android:theme="@style/Theme.Textly" >

    <activity
        android:name="com.jordanpeterson.textly.ui.MainActivity"
        android:label="@string/app_name"
        android:screenOrientation="portrait" >

- <intent-filter> <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.jordanpeterson.textly.ui.LoginActivity"
        android:label="@string/title_activity_login"
        android:screenOrientation="portrait" >
    </activity>
    <activity
        android:name="com.jordanpeterson.textly.ui.SignUpActivity"
        android:label="@string/title_activity_sign_up"
        android:parentActivityName="com.jordanpeterson.textly.ui.LoginActivity"
        android:screenOrientation="portrait" >
    </activity>

- <activity android:name="com.jordanpeterson.textly.ui.EditFriendsActivity" android:label="@string/title_activity_edit_friends" android:parentActivityName="com.jordanpeterson.textly.ui.MainActivity" android:screenOrientation="portrait" > <meta-data android:name="android.support.PARENT_ACTIVITY" android:value="com.jordanpeterson.textly.MainActivity" />

</activity>

    <activity
        android:name="com.jordanpeterson.textly.ui.RecipientsActivity"
        android:label="@string/title_activity_recipients"
        android:parentActivityName="com.jordanpeterson.textly.ui.MainActivity"
        android:screenOrientation="portrait" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.jordanpeterson.textly.MainActivity" />
    </activity>

- <activity android:name="com.jordanpeterson.textly.ui.ViewImageActivity" android:label="@string/title_activity_view_image" android:parentActivityName="com.jordanpeterson.textly.ui.MainActivity" android:screenOrientation="portrait" > <meta-data android:name="android.support.PARENT_ACTIVITY" android:value="com.jordanpeterson.textly.MainActivity" /> </activity> </application>

</manifest>