“Could not find class 'android.support.v4.app.FragmentActivity'” Error

Question

I\'m getting the following error:

> 02-06 23:10:24.104: E/dalvikvm(912): Could not find class
> \'android.support.v4.app.FragmentActivity\', referenced fro         


        

Answer 1

If there is no "libs" folder then create one

then click

Project> Android Tools >Add support Library.

This will help you. Finally clean the project and restart Eclipse

Answer 2

You need to add the support library com.android.support:support-v4

On Android Studio, go in the menu File > Project Structure (Ctrl + Alt + Shift + S) Select app, tab Dependecies, and in the + and search for the Maven libraries that you will use. In your case, the com.android.support:support-v4

Answer 3

Please Perform these two steps: 1)It's better to create libs folder and add "android-support-v4.jar" and dont forget to check checkbox mentioning "system library " . 2) Copy "android-support-v4.jar" from "adt-bundle-linux-x86-20140702/sdk/extras/android/support/v4" folder to your "/home/vinny/workspace/appcompat_v7/libs" appcompat libs folder.You can add "android-support-v7-appcompat.jar" this jar also to this folder from "adt-bundle-linux-x86-20140702/sdk/extras/android/support/v7"

Note: Don't forget to perform this step, properties->Android->Library-> add

Answer 4

Either create a "libs" folder and put the "android-support-v4.jar" file

else

import the " android-support-v4.jar" to Android Private Libraries folder, and restart the IDE to take effect.