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Android studio “SDK tools directory is missing”

Following 2 possible solutions will resolve this problem :  Solution1 : To fix the problem, it was required that I list the path to my corporate PAC file by using  Configure -> "Appearance and Behavior" -> System Settings -> HTTP Proxy . I selected "Automatic proxy configuration url:" Delete your  ~/.Android*  folders (losing all of your settings :/). Run Android Studio. It will show you a welcome wizard where it tries to download the SDK again (and fails due to my rubbish internet). Click the X on the wizard window. That will enable you to get to the normal welcome dialog. Go to Settings->Project Defaults->Project Structure and change the Android SDK location to the correct one. Solution 2 : To fix the problem, it was required that I list the path to my corporate PAC file by using  Configure -> "Appearance and Behavior" -> System Settings -> HTTP Proxy . I selected "Automatic proxy configuration url:&quo

best code for displaying the VerticalScrollView and HorizontalScrollView,in Android

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="@string/hello"
  />
<HorizontalScrollView
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
<LinearLayout
  android:orientation="vertical"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Inside 1st HorizontalScrollView" />
<LinearLayout
  android:orientation="horizontal"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
<Button
  android:text="Button A1"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button A2"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button A3"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button A4"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button A5"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
<HorizontalScrollView
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
<LinearLayout
  android:orientation="vertical"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Inside 2nd HorizontalScrollView" />
<LinearLayout
  android:orientation="horizontal"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
<Button
  android:text="Button B1"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button B2"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button B3"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button B4"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button B5"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
<Button
  android:text="Button B6"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
<ScrollView
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<LinearLayout
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent" >
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Inside ScrollView" />
<Button
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Button C"/>
<Button
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Button D"/>
<Button
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Button E"/>
<Button
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Button F"/>
<Button
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Button G"/>
<Button
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Button H"/>
<Button
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Button I"/>
</LinearLayout>
</ScrollView>
</LinearLayout>

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