javascript - React-navigation undefined Error -


i have interesting question: import 

<touchableopacity onpress={() => this.props.navigation.navigate('feed')} style={styles.buttoncontainer}>    <text  style={styles.buttontext}>         login    </text>                  </touchableopacity>

button form created, import screen want load form on this: 

<keyboardavoidingview behavior='padding' style={styles.container}>                <view style={styles.logo}>                 <text style={{fontsize: 64, color: '#34b3e4'}}>partner<text style={{fontsize: 64, color: '#0077b5'}}>up</text></text>                 <text style={{fontsize: 13, opacity: 0.8, color: '#0077b5'}}>we connect you. work easier.</text>               </view>               <loginform/>           <-------------------here import               <view style={styles.accountlogin}>                     <touchableopacity onpress={() => this.props.navigation.navigate('forgot')}>                         <text style={{opacity: 0.9,color:'#34b3e4'}} >forgot password? </text>                     </touchableopacity>               </view>   </keyboardavoidingview>

but onpress function transition screens doesnt want relay , throws undefined error cant import , render onpress function anywhere in router: 

feed: {      screen: feed,      navigationoptions: {        title: 'mentor',        header:{          right: //going users profile picture        <icon          onpress={() => this.props.navigation.navigate('profile')}        name="user"         color='#0077b5'        size={30}         />,         left: //messages        <icon          name="message"         color='#0077b5'        size={30}         />,        titlestyle: { color: '#0077b5' },       }      }    },

what have exactly

here logcat error msg

you need pass properties child component to

change

<loginform/>

to

<loginform navigation={this.props.navigation}/>

for work in navigator, use reference

<navigator  ref='navigator'  ... />

and 

<icon   navigator={this.refs.navigator} />

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