Android application has a red exclamation mark in Eclipse after importing the Facebook library
android, facebook-android-sdk
Solution
Importing Facebook SDK
Make sure, that you have Android SDK 2.3.3 available. Import the Facebook SDK project into your workspace. Then right click on it and go to Properties > Android and choose Android SDK 2.3.3. Maybe cleanup after that and you should go fine.
Referencing to Facebook SDK
Right click on your Android application project and select Properties > Android and add the imported Facebook SDK to your project. There you go!
Problem
I imported the Facebook library following this tutorial: http://developers.facebook.com/docs/getting-started/facebook-sdk-for-android/3.0/ And now I am ready to compile and try to run the project, but it is not compiling saying that I have an error in my project. What seems to be the issue is that I have the Facebook library which I imported...it has a red exclamation mark icon next to it, and now my own project has the red exclamation mark icon next to it also since I connected the two. Would anyone know how to fix this? For the record I don't need any facebook social functionality. What I needed was to connect my project with the appId of a Facebook app I have.