React Navigation StackNavigator not appearing when used inside another view - react-native

Question

I'm attempting to use a React Navigation StackNavigator for a process that includes a static component at the top of the page and varying components at the bottom. The code I'm using is:
const Navigator = StackNavigator ({
splash: Splash,
prompt: Prompt,
pinCheck: PinCheck
}, {
initialRouteName: 'splash'
});
export default class Login extends React.Component
{
constructor (props)
{
super (props);
// code to set up animation state
}
componentDidMount()
{
// code to set up animation
}
finish_ (state)
{
this.props.navigation.navigate ('main', state);
}
render()
{
const screen = Dimensions.get('screen');
return (
<KeyboardAvoidingView style={Global.styles.verticalFill} ref={this.saveContainerRef}>
<ScrollView style={{flex: 1}} contentContainerStyle={{justifyContent: 'space-between'}}>
<Animated.View style={{opacity:this.state.fade1,alignItems:'center'}} >
<Image
style={{width:screen.width * 0.6,height: screen.height*0.55}}
source={imgLogo}
resizeMode='contain'
/>
<Navigator />
</Animated.View>
</ScrollView>
</KeyboardAvoidingView>
);
}
}
When I run this, however, my initial route component is not shown. It works correctly if I swap <Navigator/> to <Splash/> however, so the component itself definitely works in this context.
Any ideas what's wrong?

Answer 1

There is a problem in your navigation setup.
All the routes in the StackNavigator must declare a screen
as mentioned in the docs
const Navigator = StackNavigator ({
splash: {
screen: splash
},
prompt: {
screen: prompt
},
pinCheck: {
screen: pinCheck
}
}, {
initialRouteName: 'splash'
})