Hai,

 What is default value of an integer  in apex?

I create a managed package myself in one org and installed it in another org. The managed package is in beta status. The managed package has a few custom labels defined that I would like to use it in my apex code in the subscriber's organization. The labels are NOT protected. They have the protected checkbox unchecked. But still I am unable to access them from apex using Label.namespace__labelname. I always get a compilation error "invalid external string name". Am I missing something?