Is this a bug report?

Yes

Have you read the Contributing Guidelines?

Yes

Environment

1. react-native -v: 0.48.3
2. node -v: v6.8.1
3. npm -v: 3.10.8
4. yarn --version:

Then, specify:

• Target Platform: iOS

• Development Operating System: macOS 10.12.4

• Build tools: Xcode

Steps to Reproduce

(Write your steps here:)

1. create a component, like this

class Root extends React.Component {
    render() {
        return (
            <View style={{display: 'none'}}>
                <Text>这是一个测试!</Text>
            </View>
        );
    }
}

If the '<Text>' contains any Chinese characters, an exception is thrown.

Expected Behavior

Actual Behavior

(Write what happened. Add screenshots!)