Why does eclipse automatically add appcompat v7 library support whenever I create a new project?

Best ways to solve these:

1. Firstly in project,Right click->properties->Android.There you can see the red marked appcompat placed in Reference. Click that and Remove it.Then Tick the right target name in Project Build Target.

2. Delete fragment_main.xml and Appcompat file created in your Eclipse.

3. Edit and change your activity_main.xml like these:

   <?xml version="1.0" encoding="utf-8"?>
   
   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
       xmlns:tools="http://schemas.android.com/tools"
       android:layout_width="match_parent"
       android:layout_height="match_parent">
   
       <TextView
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="@string/hello_world" />
   
   </RelativeLayout>

4. In res/values/styles.xml:

   <resources>
   
       <style name="AppBaseTheme" parent="android:Theme.Light">
   
       </style>
   
       <!-- Application theme. -->
       <style name="AppTheme" parent="AppBaseTheme">
   
       </style>
   
   </resources>

5. In res/values-v11/styles.xml you have to change like these:

   <resources>
   
       <style name="AppBaseTheme" parent="android:Theme.Holo.Light">
       </style>
   
   </resources>

6. In res/values-v14/styles.xml you have to change like these:

     <resources>
   
       <style name="AppBaseTheme" parent="android:Theme.Holo.Light.DarkActionBar">
       </style>
   
       <style name="AppTheme" parent="AppBaseTheme">
       </style>
   
   </resources>

7. Change your menu/main.xml like these:

   <menu xmlns:android="http://schemas.android.com/apk/res/android" >
   
       <item
           android:id="@+id/action_settings"
           android:orderInCategory="100"
           android:showAsAction="never"
           android:title="@string/action_settings"/>
   
   </menu>

8. Finally change your MainActivity.java like these:

   import android.app.Activity;
   import android.os.Bundle;
   
   public class MainActivity extends Activity {
   
       @Override
       protected void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);
           setContentView(R.layout.activity_main);
   
   }
   
   }

LikeWise you have to do it for creating a new project