"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

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.