Why I Get Error When I Use Scrollview In Android

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Java

Mobile

Android

Android4x

Hi i want to make a program in android .
when i use ScrollView i get an error like this :
"Error inflating class LinearLayout..."
what should i do ?


this is my code :

<ScrollView
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"   
xmlns:android="http://schemas.android.com/apk/res/android">
    
   <linearLayout
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:orientation="vertical">       
       
   </linearLayout>   
    
</ScrollView>