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AAPT: error: unexpected element <activity> found in <manifest><application><activity>

It specifies
ERROR:C:\Users\rafaw\OneDrive\Desktop\pp_rafa\pp_rafa\remindertest\app\build\intermediates\packaged_manifests\debug\AndroidManifest.xml:27: AAPT: error: unexpected element <activity> found in <manifest><application><activity>.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.remindertest"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="21"
android:targetSdkVersion="31" />
<application
android:allowBackup="true"
android:appComponentFactory="androidx.core.app.CoreComponentFactory"
android:debuggable="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:testOnly="true"
android:theme="#style/Theme.ReminderTest" >
<activity
android:name="com.example.remindertest.Activity2"
android:exported="false" />
<activity
android:name="com.example.remindertest.MainActivity"
android:exported="true" >
<activity android:name="com.example.remindertest.DestinationActivity" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.example.remindertest.AlarmReceiver" />
<provider
android:name="androidx.startup.InitializationProvider"
android:authorities="com.example.remindertest.androidx-startup"
android:exported="false" >
<meta-data
android:name="androidx.emoji2.text.EmojiCompatInitializer"
android:value="androidx.startup" />
<meta-data
android:name="androidx.lifecycle.ProcessLifecycleInitializer"
android:value="androidx.startup" />
</provider>
</application>
</manifest>
I can launch my app/emulator though but a few features does not work. Do you guys know what's happening? Also when I open AndroidManifest it's normal but when I launch emulator it turns red, if I exit and open again it's back to normal yellow, though there is a red underline under the destination activity problem

update this manifest file with your manifest, and rebuild.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.remindertest"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="21"
android:targetSdkVersion="31" />
<application
android:allowBackup="true"
android:appComponentFactory="androidx.core.app.CoreComponentFactory"
android:debuggable="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:testOnly="true"
android:theme="#style/Theme.ReminderTest" >
<activity
android:name="com.example.remindertest.Activity2"
android:exported="false" />
<activity android:name="com.example.remindertest.DestinationActivity" />
<activity
android:name="com.example.remindertest.MainActivity"
android:exported="true" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.example.remindertest.AlarmReceiver" />
<provider
android:name="androidx.startup.InitializationProvider"
android:authorities="com.example.remindertest.androidx-startup"
android:exported="false" >
<meta-data
android:name="androidx.emoji2.text.EmojiCompatInitializer"
android:value="androidx.startup" />
<meta-data
android:name="androidx.lifecycle.ProcessLifecycleInitializer"
android:value="androidx.startup" />
</provider>
</application>
</manifest>

Android - Default Activity Cannot Be Found

I am making a basic custom launcher by following the given instructions on a site... The instructions say that the app can be launched, but when I try, I get an error saying the default activity not found.
I looked into the existing questions on stack overflow but none of them helped me. My manifest is this...
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="omg_its_azzler.launcher">
<activty>
<application android:allowBackup="true"
android:name="omg_its_azzler.launcher.HomeActivity"
android:label="#string/app_name"
android:icon="#mipmap/ic_launcher"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#android:style/Theme.Wallpaper.NoTitleBar.Fullscreen"
android:launchMode="singleTask"
android:stateNotNeeded="true"/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.HOME"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activty>
<activity>
android:name="omg_its_azzler.launcher.AppsActivity"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen">
</activity>
</manifest>

You got the syntax of the manifest wrong. The application tag is the tag you keep all the activities inside of.
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="omg_its_azzler.launcher">
<application android:allowBackup="true"
android:name="omg_its_azzler.launcher.HomeActivity"
android:label="#string/app_name"
android:icon="#mipmap/ic_launcher"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#android:style/Theme.Wallpaper.NoTitleBar.Fullscreen"
android:launchMode="singleTask"
android:stateNotNeeded="true"/>
<activity>
android:name="omg_its_azzler.launcher.AppsActivity"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.HOME"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>
The application tag is the root tag for all activities, and the intent filter goes inside the activity tag

All <activity>...</activity> should be in <application>...</application>.
In your manifest your <activity> tag is outside the <application>...</application> and closing tag </activity> is inside it.
This is the AndroidManifest.xml structure:
<uses-permission />
<permission />
<permission-tree />
<permission-group />
<instrumentation />
<uses-sdk />
<uses-configuration />
<uses-feature />
<supports-screens />
<compatible-screens />
<supports-gl-texture />
<application>
<activity>
<intent-filter>
<action />
<category />
<data />
</intent-filter>
<meta-data />
</activity>
<activity-alias>
<intent-filter> . . . </intent-filter>
<meta-data />
</activity-alias>
<service>
<intent-filter> . . . </intent-filter>
<meta-data/>
</service>
<receiver>
<intent-filter> . . . </intent-filter>
<meta-data />
</receiver>
<provider>
<grant-uri-permission />
<meta-data />
<path-permission />
</provider>
<uses-library />
</application>

changed package name, now AndroidManifest.xml doesn't work

So, I tried to change the package by the following steps I found elsewhere on StackOverflow website:
create a new package
refractor the package to the new package
changing the package line in the form for the AndroidManifest.xml
btw I'm using Eclipse, if that's relevant.
However, I'm getting an error message in the AndroidManifext.xml file:
Parser exception for /GameProj/AndroidManifest.xml: The prefix "com.p.gameproj.Dataid" for attribute "com.p.gameproj.Dataid:name" associated with an element type "activity" is not bound At line 31.
Can someone tell me what the error message means?
Also, here's the AndroidManifest.xml file, if it's relevant:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.p.gameproj"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.p.gameproj.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
com.p.gameproj.Creditsname=".Credits"
android:label="#string/title_activity_credits" >
</activity>
<activity
com.p.gameproj.Dataid:name=".Data"
android:label="#string/title_activity_data" >
</activity>
<activitycom.p.gameproj.CharacterPageandroid:name=".CharacterPage"
android:label="#string/title_activity_character_page" >
</activity>
<activity
com.p.gameproj.StatPageame=".StatPage"
android:label="#string/title_activity_stat_page" >
</activity>
<activitycom.p.gameproj.MapMain android:name=".MapMain"
android:label="#string/title_activity_map_main" >
</activity>
com.p.gameproj.ScreenLocvity
android:name=".ScreenLoc"
android:label="#string/title_activity_screen_loc"com.p.gameproj.BattleScreen/activity>
<activity
android:name=".BattleScreen"
android:label="#string/title_activity_battle_screen" >
</com.p.gameproj.InvScreen
<activity
android:name=".InvScreen"
android:label="#string/title_activity_inv_screen"com.p.gameproj.ShopThing </activity>
<activity
android:name=".ShopThing"
android:label="#string/title_activity_shop_thing" >
</activity>
</application>
</manifest>

Looks like something went wrong during your package name change. Probably a bad find/replace action. There are a several invalid attributes and elements in the AndroidManifest.xml file such as the following:
<activity
com.p.gameproj.Dataid:name=".Data"
android:label="#string/title_activity_data" >
Notice the com.p.gameproj.Dataid:name=".Data". It should be android:name=".Data".
Once you fix all these bad values it should work again.
This should be close
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.p.gameproj"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.p.gameproj.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Credits"
android:label="#string/title_activity_credits" >
</activity>
<activity
android:name=".Data"
android:label="#string/title_activity_data" >
</activity>
<activity
android:name=".CharacterPage"
android:label="#string/title_activity_character_page" >
</activity>
<activity
android:name=".StatPage"
android:label="#string/title_activity_stat_page" >
</activity>
<activity
android:name=".MapMain"
android:label="#string/title_activity_map_main" >
</activity>
<activity
android:name=".ScreenLoc"
android:label="#string/title_activity_screen_loc">
</activity>
<activity
android:name=".BattleScreen"
android:label="#string/title_activity_battle_screen" >
</activity>
<activity
android:name=".InvScreen"
android:label="#string/title_activity_inv_screen">
</activity>
<activity
android:name=".ShopThing"
android:label="#string/title_activity_shop_thing" >
</activity>
</application>
</manifest>

Android app name shows as "loading"

Hi I am working with android . I had created an app in which I used volley jar for loading json contents using the link http://www.androidhive.info/2014/05/android-working-with-volley-library-1/ . Here I am used a AppController class which extends Application.MY problem is that when I run the app in device it works fine but shows app label as "Loading". I dont know why this happens .I changed label and icon in manifest and so Icon will changes but app name still the same. Here is my manifest.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="info.androidhive.tabsswipe"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:name="com.listview.myapp.app.AppController"
android:allowBackup="true"
android:icon="#drawable/icon_aloud"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="info.androidhive.tabsswipe.Welcome"
android:label="" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="info.androidhive.tabsswipe.ProfileView"
android:label="" />
<activity
android:name="info.androidhive.tabsswipe.Step1"
android:label="" />
<activity
android:name="info.androidhive.tabsswipe.Share"
android:label="#string/app_name" />
<activity
android:name="info.androidhive.tabsswipe.Suggestion"
android:label="" />
<activity
android:name="info.androidhive.tabsswipe.Groupchat"
android:label="" />
<activity
android:name="info.androidhive.tabsswipe.MainActivity"
android:label=""
android:theme="#style/MyTheme" >
</activity>
<activity
android:name="info.androidhive.tabsswipe.Association"
android:label="" />
<activity
android:name="info.androidhive.tabsswipe.Asso_single"
android:label="" />
<activity android:name="info.androidhive.tabsswipe.NotificationActivity" />
<activity
android:name="info.androidhive.tabsswipe.Step2"
android:label="" />
<activity
android:name="info.androidhive.tabsswipe.Step3"
android:label="" />
<activity
android:name="info.androidhive.tabsswipe.Comment_thread"
android:label="" />
</application>
</manifest>
here is my string.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Testapp</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string name="radio_public">public</string>
<string name="radio_private">private</string>
</resources>
How can I solve this problem ? please help me. Thanks in advance :)

Either remove android:label="" from Welcome activity or android:lable="#string/app_name" in Welcome activity .
Thanks

The Icon App dosen't appear in my activities

when I update my SDK the icon app doesn't appear in the activities I tried all the solution on the internet but nothing happened .. I tried also to put " android:icon" in each activities nothing change also made a custom actionbar also nothing change .. please any help?
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package=""
android:installLocation="auto"
android:versionCode="1"
android:versionName="1.0" >
"
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/CustomActionBarTheme" >
<activity
android:name=".Main"
android:label="#string/app_name"
android:theme="#style/NoActionBarTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Option"
android:label="#string/title_activity_option" >
</activity>
<activity
android:name=".CustomList"
android:label="#string/title_activity_custom_list" >
</activity>
<activity
android:name=".Social"
android:label="#string/title_activity_social" >
</activity>
<activity
android:name=".About"
android:label="#string/title_activity_about" >
</activity>
<activity
android:name=".ActionBar"
android:label="#string/title_activity_action_bar" >
</activity>
</application>
</manifest>