Issue with ActionBarActivityDelegate class.....app doesn't run

android android-activity android-actionbar android-actionbar-compat android-appcompat
Roberto Arias picture Roberto Arias · Jul 26, 2013 · Viewed 7.1k times · Source

Hello i hope someone can help me with his I was planning to put an action bar in my test app, so I did exactly as said in the developers API guide.

But when i tried to compile it it throw this error (logcat):

java.lang.ExceptionInInitializerError
at android.support.v7.app.ActionBarActivityDelegate.createDelegate()
at android.support.v7.app.ActionBarActivity.onCreate().....
..... 
Caused by: java.lang.NoClassDefFoundError: android.support.v7.appcompat.R$attr
at android.support.v7.app.ActionBarActivityDelegateBase.<clinit>

What happens is that the app is correctly installed into my phone but even before it shows any UI, it throws the error and closes.

I even tried with the most simple app ("hello world example") and says the same thing I tried it in both real phone and simulator, and same result

Any ideas how to fix that???? Seems that there is no definition for the class ActionBarActivityDelegateBase, but i cannot find any reference to that class in the guides or any other website

Answer

clauziere picture clauziere · Aug 1, 2013

I had that error, and the problem was that I hadn't added the lib with the resources. You can't just add the jars, because it will not add the resources. You have to create a project from thoses libs and then add the project as a library to your own project.

Here's the instructions how to:

Go to this link and go to the "Adding libraries with resources" section

http://developer.android.com/tools/support-library/setup.html

This fixed the problem for me.

Cheers

Related questions

Difference between extending LifecycleActivity,Activity,ActionbarActivity & AppCompactActivity?

In Android what is the main difference between extending Lifecycler Activity, Activity,ActionBarActivity & AppCompactActivity? How do these classes differ from each other in terms of usage?

Read More
Coordinator Layout with Toolbar in Fragments or Activity

With the new design library there are several new layouts that change a lot how the toolbar can behave if the developer so wishes. Since different fragments have different behaviors and objectives, for example a gallery fragment with a collapsing …

Read More
Returning from an activity using navigateUpFromSameTask()

I have two activities, A and B. When activity A is first started, it accesses the Intent passed to it (because the Bundle is null, as it should be the first time through), and displays information accordingly: CustInfo m_custInfo; ... …

Read More