So whenever i create new project in Android Studio this happens: there is 4 errors in activity_main.xml and 6 errors in AndroidManifest.xml
this is activity_main
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
`android:layout_width="match_parent"` <---ERROR(attribute android:layout_width is not allowed here)
`android:layout_height="match_parent"` <---ERROR(attribute android:layout_height is not allowed )
`tools:context=".MainActivity">` <---ERROR(attribute tools:context is not allowed here)
`<TextView` <---ERROR(attribute TextView is not allowed here)
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
and this is Mainfest
<application
android:allowBackup="true"<--ERROR(attribute android:allowBackup is not allowed here)
`android:icon="@mipmap/ic_launcher"` <--ERROR(attribute android:icon is not allowed here)
android:label="@string/app_name"
`android:roundIcon="@mipmap/ic_launcher_round"` <--ERROR(attribute android:roundIcon is not ...)
`android:supportsRtl="true"` <--ERROR(attribute android:supportsRtl is not ...)
`android:theme="@style/AppTheme">` <--ERROR(attribute android:theme is not allowed..)
`<activity android:name=".MainActivity">` <--ERROR(Unresolved class MainActivity)
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Remove the single quotes from your activity_main.xml file:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
You just need to enable embedded Maven repository. To do it follow this path:
File -> settings ->Build,Execution, Deployment -> Gradle -> Android Studio
and finally check Enable embedded Maven repository
Good luck new contributor;)
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