Android Studio中的双重图标

Question

如何消除Android Studio中的双重图标？我的Manifest.xml文件不包含两个intent过滤器，但我遇到了这个问题。我甚至无法卸载手机中创建的两个图标之一。

的Manifest.xml

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

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ico"
    android:label="StudentCertificateLedger"
    android:roundIcon="@drawable/ico"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".WelcomeActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".LoginActivity"
        android:label="HOMESCREEN"
        android:theme="@style/AppTheme"></activity>
    <activity android:name=".SignupActivity" />
    <activity android:name=".DashboardActivity" />
    <activity android:name=".AdminDashboardActivity" />
    <activity android:name=".ExtraActivity" />
    <activity android:name=".PaymentActivity" />
    <activity android:name=".UserDashboardActivity" />
    <activity android:name=".UploadActivity" />

</application>