Android: class not found exception: android.support.v4.app.FragmentPager

Question

In my code I import android.support.v4.view.ViewPager but I get a ClassNotFoundException: android.support.v4.view.ViewPager when I set content view to this xml file:

...
 <android.support.v4.app.FragmentPager 
     android:layout_height="0px" 
     android:layout_width="match_parent" 
     android:layout_weight="1" 
     android:id="@+id/pager"> 
     </android.support.v4.app.FragmentPager>
...

waqaslam · Accepted Answer · 2014-11-06T22:29:00.373

41

You have to add compatibility library by right clicking your project and selecting Android Tools -> Add Compatibility Library. Once its added, clean your project and build again.

enter image description here

edited Nov 06 '14 at 22:29

answered Apr 17 '12 at 21:31

waqaslam

67,549
16
165
178

In my project this resolved issues with missing android.support.v4 library, but I still miss android.support.v13 library! – Piro Jan 18 '17 at 09:21

score 33 · Answer 2 · answered Aug 29 '14 at 16:28

33

i'm using Android Studio Beta 0.8.6 and i had to do it this way

File -> Project Structure enter image description here

answered Aug 29 '14 at 16:28

Mina Gabriel

23,150
26
96
124

score 4 · Answer 3 · answered Oct 30 '13 at 02:10

4

Go to <Your android apk folder>\sdk\extras\android\support\v4 folder and add android-support-v4.jar to app library (or whole sdk library).

answered Oct 30 '13 at 02:10

ITurchenko

1,828
2
17
24

score 3 · Answer 4 · answered Jul 29 '13 at 09:46

Add Support library by right clicking your project and selecting Android Tools -> Add Compatibility Library. After adding Support Library clean your project and Go to Java Build Path, Go to Order and Export [Last tab] click all currently added Jar files and libraries..press Ok and refresh your Project.. It works fine for me..

score 1 · Answer 5 · answered Apr 17 '12 at 21:30

1

You should add android.support.v4 jar to your app.

answered Apr 17 '12 at 21:30

Alex Klimashevsky

2,457
3
26
58

1

i have it and i have android-support-v13.jar which contains a support.v4 folder. strang thing i cannot find a ViewPager, in both folders. is that a problem? – user1324936 Apr 18 '12 at 21:44
hm...it seams android doesnt contains this class at all – Alex Klimashevsky Apr 19 '12 at 19:55

score 0 · Answer 6 · answered Jul 13 '15 at 08:59

0

If it is not gradle based then You should Migrate Eclipse ADT based project to Gradle based.. Import Project into android studio..

answered Jul 13 '15 at 08:59

Mukta gajare

1

Will that fix the problem? – Robert Jul 13 '15 at 09:06

score 0 · Answer 7 · answered Apr 08 '16 at 10:04

0

I had this problem please right click on your project and click Android Tools and now click Support Libraries and then Accept License Now Run your Project It will Work :D

RightClick==>Android Tools==>Support Libraries ==>Accept License

answered Apr 08 '16 at 10:04

Edward

1

Android: class not found exception: android.support.v4.app.FragmentPager

7 Answers7

Linked