android studio library 安装时候出现两个应用程序图标

<application
        android:label="@string/app_name" >
        <!--<activity
            android:name="com.htl.Zxing.decoding.CaptureActivity"
            android:configChanges="orientation|keyboardHidden"
            android:screenOrientation="portrait"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
            android:windowSoftInputMode="stateAlwaysHidden" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="com.htl.Zxing.decoding.CaptureActivity2"></activity>-->
    </application>
<applicati