PC端免登出现奇怪的问题

DingTalkPC.config({
    agentId   : '{$config.agentid}',
    corpId    : '{$config.corpid}',
    timeStamp : {$config.timestamp},
    nonceStr  : '{$config.noncestr}',
    signature : '{$config.signature}',
    jsApiList: ['runtime.info',
        'biz.contact.choose',
        'device.notification.confirm',
        'device.notification.alert',
        'device.notification.prompt',
        'biz.ding.post']
});
DingTalkPC.ready(function() {

    DingTalkPC.runtime.permission.requestAuthCode({
        corpId: "{$config.corpid}",
        onSuccess: function(info) {
            $.getJSON('{:U("dinglogin/userinfo")}', {code: info.code}, function(data) {
                alert(data)
                if (data.errcode == 0) {
                    $('h4').text(data.name);
                    $(".ui-avatar-one span").attr('style', 'background-image:url('+data.avatar+'_120x120.jpg)');
                } else {
                    alert('auth error: ' + data);
                }
            });
        },
        onFail: function(err) {
            $("#err").text('requestAuthCode fail: ' + JSON.stringify(err));
        }
    });
});



requestAuthCode fail: {"reason":"API NOT EXIST","code":"404"}