This is my Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.pavelstudio.todolistplus"
    android:versionCode="2"
    android:versionName="1.1" >
    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="21" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
        <activity
            android:name=".MainActivity"
            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=".AddEditNotes"
            android:screenOrientation="portrait" />
        <activity
            android:name=".DatabaseConnector"
            android:screenOrientation="portrait" />
        <activity
            android:name=".ViewNote"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.google.android.gms.ads.AdActivity"
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" />
    </application>
</manifest>
I have a Android apps in google play store. I want to update this apps. I have changed my versioncode and version name. When I upload my apps in google play store it shows a message.
You need to use a different package name because "com.pavelstudio.todolistplus" is already used by one of your other applications.
So what I do now?