问React Starter Kit错误-找不到页面

EN

async function action() {

let bittrex = new ccxt.bittrex ({
    'apiKey': '',
    'secret': ''
})

try {

    // fetch account balance from the exchange
    let bittrexBalance = await bittrex.fetchBalance ()
    /**** commenting above and uncommenting this block stops it from happening.... 
    let bittrexBalance = {};
    bittrexBalance.info= [];
    let currency = {};
    currency.Currency = "BTC";
    currency.Value=999;
    // output the result
    bittrexBalance.info.push(currency);*/
    console.log ('balance', bittrexBalance)

    let balances = [];
    balances.push(bittrexBalance)
    return {
        title: "Balances",
        component: (
            <Layout>
                <Balances balances={balances} />
            </Layout>
        ),
    };


} catch (e) {
    console.log('SOME sort of error', e);
}