This is a no-op, but it indicates a memory leak in your application

ExceptionsManager.js:84 Warning: Can't call setState (or forceUpdate) on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in the componentWillUnmount method.

    in Current (created by Connect(Current))

    in Connect(Current) (at SceneView.js:9)

    in SceneView (at StackViewLayout.js:483)

    in RCTView (at View.js:44)

    in AnimatedComponent (at screens.native.js:59)

    in Screen (at StackViewCard.js:42)

    in Card (at createPointerEventsContainer.js:26)

    in Container (at StackViewLayout.js:507)

SOLUTION => https://reactjs.org/blog/2015/12/16/ismounted-antipattern.html