Android错误：未找到默认活动

我有一个启动器活动，但android studio说“未找到默认活动”。这是在我添加了一个登录活动后开始的，我希望它是启动程序活动（仅用于用户注册时）。因此，我希望在用户安装我的应用程序并提供他们的凭据后，主活动是launcher活动。非常感谢你的帮助。 这是我的清单，包括我的登录名和主要活动

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="mypackage"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="22" />
    <library />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <uses-permission android:name="android.permission.BATTERY_STATS"/>
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <uses-permission android:name="android.permission.WRITE_SMS" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
    <uses-permission android:name="mypackage.permission.MAPS_RECEIVE"/>
    <uses-permission android:name="android.permission.WAKE_LOCK"/>
    <uses-permission android:name="otherpackage.permission.C2D_MESSAGE" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS"/> 
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> 
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true"/>

    <permission
        android:name="mypackage.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />
    <permission 
        android:name="com.google.android.c2dm.permission.RECEIVE"></permission>
    <permission 
        android:name="otherpackage.permission.C2D_MESSAGE"
        android:protectionLevel="signature"></permission>

    <application
        android:allowBackup="true"
        android:icon="@drawable/image"
        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" />
        <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="key"/>
        <Activity
            android:name=".Login"
            android:label="REGISTER"
            android:noHistory="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </Activity>
        <Activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAINACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </Activity>

        <Activity
            android:name=".MapActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAPACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </Activity>

        <!--<activity
            android:name=".MyMapActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MYMAPACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>-->
        <receiver
            android:name="com.google.android.gms.gcm.GcmReceiver"
            android:permission="com.google.android.c2dm.permission.SEND" >
            <intent-filter>
        <!--Receives the actual messages. -->
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        <!--this is to support pre KitKat -->
                <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
                <category android:name="mypackage" />
                <category android:name="otherpackage" />
            </intent-filter>
        </receiver>
        <receiver android:name=".MapActivity$ResponseReceiver">
            <intent-filter>
                <action android:name="mypackage.MapActivity.ResponseReceiver.ACTION_RESP" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>
        <service
            android:name=".MapActivity$MyGcmListenerService"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            </intent-filter>
        </service>
        <service
            android:name=".Login$MyInstanceIDListenerService"
            android:exported="false">
            <intent-filter>
                <action android:name="com.google.android.gms.iid.InstanceID"/>
            </intent-filter>
        </service>
        <service android:name="mypackage.RegistrationIntentService"></service>

        <service
            android:name=".FetchAddressIntentService"
            android:exported="false"/>

    </application>

</manifest>

---

注意：主活动扩展了MyMapActivity，它扩展了FragmentActivity。这是starnge，但我在logcat中找到了这个。我还没有实现iheartradio库或任何东西。“原因：java.lang.ClassNotFoundException:com.clearchannel.iHeartadio.alarm.LiveDeltaUpdateService”

您有一个打字错误<代码>，而不是

完整的AndroidManifest必须包含标记及其内部

您必须使用完全限定类名声明活动，如果活动位于应用程序的包内（在manifest.package属性中声明），则包声明可以使用点（.）进行编辑

例如：




PS：您必须在运行应用程序时读取错误生成的堆栈跟踪，您可以使用Eclipse或Android Studio上的logcat窗口或Android SDK安装中包含的Android设备监视器。
将清单文件中的活动更改为活动

 <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="mypackage"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="22" />
    <library />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <uses-permission android:name="android.permission.BATTERY_STATS"/>
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <uses-permission android:name="android.permission.WRITE_SMS" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
    <uses-permission android:name="mypackage.permission.MAPS_RECEIVE"/>
    <uses-permission android:name="android.permission.WAKE_LOCK"/>
    <uses-permission android:name="otherpackage.permission.C2D_MESSAGE" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS"/> 
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> 
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true"/>

    <permission
        android:name="mypackage.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />
    <permission 
        android:name="com.google.android.c2dm.permission.RECEIVE"></permission>
    <permission 
        android:name="otherpackage.permission.C2D_MESSAGE"
        android:protectionLevel="signature"></permission>

    <application
        android:allowBackup="true"
        android:icon="@drawable/image"
        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" />
        <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="key"/>
        <activity
            android:name=".Login"
            android:label="REGISTER"
            android:noHistory="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAINACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

        <activity
            android:name=".MapActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAPACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

        <!--<activity
            android:name=".MyMapActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MYMAPACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>-->
        <receiver
            android:name="com.google.android.gms.gcm.GcmReceiver"
            android:permission="com.google.android.c2dm.permission.SEND" >
            <intent-filter>
        <!--Receives the actual messages. -->
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        <!--this is to support pre KitKat -->
                <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
                <category android:name="mypackage" />
                <category android:name="otherpackage" />
            </intent-filter>
        </receiver>
        <receiver android:name=".MapActivity$ResponseReceiver">
            <intent-filter>
                <action android:name="mypackage.MapActivity.ResponseReceiver.ACTION_RESP" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>
        <service
            android:name=".MapActivity$MyGcmListenerService"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            </intent-filter>
        </service>
        <service
            android:name=".Login$MyInstanceIDListenerService"
            android:exported="false">
            <intent-filter>
                <action android:name="com.google.android.gms.iid.InstanceID"/>
            </intent-filter>
        </service>
        <service android:name="mypackage.RegistrationIntentService"></service>

        <service
            android:name=".FetchAddressIntentService"
            android:exported="false"/>

    </application>

</manifest>


您可以尝试以下方法：

文件->无效缓存->重新启动
在我的例子中，这很简单，因为我在一个新创建的项目中遇到了这个错误，结果证明您必须在活动标记中添加某种意图才能使其工作：

<activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>

只需删除C://Users/username中的.gradle文件夹就可以了。无效缓存等没有。谢谢您的关注。不幸的是，错误依然存在。我清理并重建了我的项目，但还没有运气。你能发布完整的清单吗？
 <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="mypackage"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="22" />
    <library />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <uses-permission android:name="android.permission.BATTERY_STATS"/>
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <uses-permission android:name="android.permission.WRITE_SMS" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
    <uses-permission android:name="mypackage.permission.MAPS_RECEIVE"/>
    <uses-permission android:name="android.permission.WAKE_LOCK"/>
    <uses-permission android:name="otherpackage.permission.C2D_MESSAGE" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS"/> 
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> 
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true"/>

    <permission
        android:name="mypackage.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />
    <permission 
        android:name="com.google.android.c2dm.permission.RECEIVE"></permission>
    <permission 
        android:name="otherpackage.permission.C2D_MESSAGE"
        android:protectionLevel="signature"></permission>

    <application
        android:allowBackup="true"
        android:icon="@drawable/image"
        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" />
        <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="key"/>
        <activity
            android:name=".Login"
            android:label="REGISTER"
            android:noHistory="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAINACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

        <activity
            android:name=".MapActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAPACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

        <!--<activity
            android:name=".MyMapActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MYMAPACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>-->
        <receiver
            android:name="com.google.android.gms.gcm.GcmReceiver"
            android:permission="com.google.android.c2dm.permission.SEND" >
            <intent-filter>
        <!--Receives the actual messages. -->
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        <!--this is to support pre KitKat -->
                <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
                <category android:name="mypackage" />
                <category android:name="otherpackage" />
            </intent-filter>
        </receiver>
        <receiver android:name=".MapActivity$ResponseReceiver">
            <intent-filter>
                <action android:name="mypackage.MapActivity.ResponseReceiver.ACTION_RESP" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>
        <service
            android:name=".MapActivity$MyGcmListenerService"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            </intent-filter>
        </service>
        <service
            android:name=".Login$MyInstanceIDListenerService"
            android:exported="false">
            <intent-filter>
                <action android:name="com.google.android.gms.iid.InstanceID"/>
            </intent-filter>
        </service>
        <service android:name="mypackage.RegistrationIntentService"></service>

        <service
            android:name=".FetchAddressIntentService"
            android:exported="false"/>

    </application>

</manifest>

<activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>