I am working on a project in eclipse. Since now it's the of the project and I want to import The Facebook SDK now. I have no experience with Android Studio. So import it like other project and face a bundles of error. I resolved many of them. Since now one error is still stuck me. that is in
import android.support.annotation.Nullable;
and the error is
"The import android.support.annotation cannot be resolved"
My target Android SDK is "4.4.2" and Facebook SDK is "4.5.1" Please Help me to resolve this without switching to Android Studio.