when using The props or button loading will get a error , and other is work.

[feaverfei]

Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undifined. Check the render method of 'Button'.

<Button
isLoading={true}
style={styles.buttonStyle7} textStyle={styles.textStyle6}
onPress={() => {
console.log('world!')
}}>
Hello

it can"t work.

<Button
style={styles.buttonStyle6} textStyle={styles.textStyle}
onPress={() => {
console.log('world!')
}}>
Hello

it can work

[alvaromb]

Hello @feaverfei!

I need more info to debug, RN version, platform, button version, etc.

Checking the example, the isLoading prop works perfectly.

[feaverfei]

thanks

{
"name": "Project",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "react-native start"
},
"dependencies": {
"react": "^15.1.0",
"react-native": "^0.27.2"
}
}

[feaverfei]

i think i should update this version

[Aadesh05]

Hey is this issue solved because I am also facing the same issue
"react": "^15.1.0",
"react-native": "^0.27.2"
is what am I also using!

<Button
style={{backgroundColor: color, marginTop: 40.5, borderWidth: 0, borderRadius: 0}} textStyle={{fontSize: 15, color: 'white', fontFamily: 'Montserrat-Regular', letterSpacing: 0.3}}
isLoading = { true }
onPress={this.continuePressed.bind(this)}
>
CONTINUE
</ Button>

gives error:
React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components).%s"