我有一个名为meterData的List变量，我想将列表项的值插入到React本机Elements组件ListItem.Accordion中。这是我的代码，到目前为止，我得到的错误是Can't find variable : meterData

function getReadingOrder(Emp_Number,{navigation}){
  
  fetch('http://somewebsite/gecol/partner/api.php?emp_number='+`${Emp_Number}`, {
  method: 'POST',
  headers: {
    Accept: 'text/plain',
    'Content-Type': 'text/plain'
  }
})
  .then((response) => response.text())
  .then((data) => { var xml2js = require('xml2js');
            var meterData = "";
            var parser = new xml2js.Parser();
            parser.parseString(data, function(err,result){
            //Extract the value from the data element
            const meterData = [{
              servicePoint:result['counter']['serviceNumber'],
              counternumber:result['counter']['counternumber'],
              consumer:result['counter']['consumername'],
              consumpationtype:result['counter']['consumpationtype'],
              currentread:result['counter']['currentread'],
              currentdate:result['counter']['currentdate'],
              lastread:result['counter']['lastread'],
              lastdate:result['counter']['lastdate'],
              consumpation:result['counter']['consumpation'],
              phonenumber:result['counter']['phonenumber']
            }]
            // getRounds(meterData);
      });
    });
    const [expanded, setExpanded] = React.useState(true);
    return (  
      <SafeAreaProvider >
        <View style={ReaderHome.Accordion}>
          {meterData.map((meter, i) => (
          <ListItem.Accordion 
            content={
              <>
              <Avatar size={64} icon={{ name: 'home', type: 'AntDesign' }} containerStyle={{ backgroundColor: '#1f95c0' }}/>
              <ListItem.Content>
                <ListItem.Title style={{left:10}}><Text style={ReaderHome.ConsumerName}>meter.consumer</Text></ListItem.Title>
                <ListItem.Subtitle style={{left:10}}><Text style={ReaderHome.ServiceNumber}>meter.servicePoint</Text></ListItem.Subtitle>
                </ListItem.Content>
              </>
            }
            isExpanded={expanded}
            onPress={() => {
              setExpanded(!expanded);
            }}
              >
              <ListItem key={i} onPress={console.log('s')} bottomDivider>
                <Avatar title={''} source={''} />
                  <ListItem.Content>
                    <ListItem.Title>{meter.currentread}</ListItem.Title>
                    <ListItem.Subtitle>{meter.lastread}</ListItem.Subtitle>
                  </ListItem.Content>
                  <ListItem.Chevron />
              </ListItem>
          </ListItem.Accordion>))}
        </View>
      </SafeAreaProvider>);
      
  }