android.annotation cannot be resolved

E/AndroidRuntime( 1775): FATAL EXCEPTION: main
E/AndroidRuntime( 1775): java.lang.Error: Unresolved compilation problems: 
E/AndroidRuntime( 1775):        The import android.annotation cannot be resolved
E/AndroidRuntime( 1775):        SuppressLint cannot be resolved to a type

E/AndroidRuntime( 1775):        The attribute value is undefined for the annotation type SuppressLint

android.annotation.SuppressLint是API level 16之后才有的。

1. 运行android sdk manager更新到API level 16