android.annotation cannot be resolved
http://stackoverflow.com/questions/14870596/android-annotation-cannot-be-resolved
As Artem suggested, you may need to include the annotations.jar file into your project, but note that there are two annotations.jar files in your Android SDK:
android-sdk/tools/support/annotations.jar - Which includes the following annotations:
- SupportLint
- TargetApi
android-sdk/extras/android/support/annotations/annotations.jar - Which includes many other annotations:
- AnimRes
- AnimatorRes
- AnyRes
- ArrayRes
- AttrRes
- BoolRes
- ColorRes
- DimenRes
- DrawableRes
- FractionRes
- IdRes
- IntDef
- IntegerRes
- InterpolatorRes
- LayoutRes
- MenuRes
- NonNull
- Nullable
- PluralsRes
- RawRes
- StringDef
- StringRes
- StyleRes
- StyleableRes
- XmlRes
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