“could not find com_facebook_android.apk error” when running Android project

Question

I've installed the Facebook API for Android in Eclipse, and imported the project into my Android project. My program builds perfectly fine, but when I try to run it I get

Could not find com_facebook_android.apk!

in the build window, and when the program actually tries to import any of the Facebook API classes it blows up with a java.lang.NoClassDefFoundError: com.facebook.android.Facebook

Answer 1

1. Check out referencing libraries instructions here:
   http://developer.android.com/guide/developing/projects/projects-eclipse.html

2. Make sure you have the latest versions of ADT.

3. Try to clean your project in eclipse.

Hope this helps

Answer 2

Probably you added the reference to the Java project in the "Java Build Path" but it's the wrong place.

From the Android guide:

To add a reference to a library project, follow these steps:

• In the Package Explorer, right-click the dependent project and select Properties.
• In the Properties window, select the "Android" properties group at left and locate the Library properties at right.
• Click Add to open the Project Selection dialog.
• From the list of available library projects, select a project and click OK.
• When the dialog closes, click Apply in the Properties window.
• Click OK to close the Properties window

This resolved my problem.

Answer 3

In my case helped, not to have in the referenced projects checked Is Library

(Project Properties > Android)

Answer 4

I am also having issues with this error and have noted that if I run eclipse as root then the error disappears. This makes me think it is a permissions issue

So to help:

On the com Facebook android project right click > android tool > build and export

Then simply build the project into the bin folder of the Facebook project.

Problem solved

Answer 5

I had a similar problem. This was my resolution. I had to add android.jar as a reference.

Android samples error

Answer 6

If nothing works, try deleting the Facebook application for Android (if you have one installed on your phone). This worked for me.