功能入参[交易账户]不能为空

# -*- coding: utf-8 -*-
from xtquant.xttrader import XtQuantTrader, XtQuantTraderCallback
from xtquant.xttype import StockAccount
from xtquant import xtconstant
import time, datetime, traceback, sys

class MyXtQuantTraderCallback(XtQuantTraderCallback):
    def on_disconnected(self):
        print("连接断开")

    def on_stock_order(self, order):
        print("委托回报")
        print(order.stock_code, order.order_status, order.order_sysid)

    def on_stock_asset(self, asset):
        print("资金变动")
        print(asset.account_id, asset.cash, asset.total_asset)

    def on_stock_trade(self, trade):
        print("成交变动")
        print(trade.account_id, trade.stock_code, trade.order_id)

    def on_stock_position(self, position):
        print("持仓变动")
        print(position.stock_code, position.volume)

    def on_order_error(self, order_error):
        print("委托失败")
        print(order_error.order_id, order_error.error_id, order_error.error_msg)

    def on_cancel_error(self, cancel_error):
        print("撤单失败")
        print(cancel_error.order_id, cancel_error.error_id, cancel_error.error_msg)

    def on_order_stock_async_response(self, response):
        print("异步下单回")
        print(response.account_id, response.order_id, response.seq)

    def on_account_status(self, status):
        print("账户状态")
        print(status.account_id, status.account_type, status.status)


if __name__ == "__main__":
    print("开始运行")
    # path为安装目录下userdata_mini路径，"D:\\QMT\\"需要根据自己的路径修改
    path = 'C:\\中金财富QMT个人版交易端\\userdata_mini'

    # 打开可执行文件XtMiniQmt.exe "D:\\QMT\\"需要根据自己的路径修改
    import subprocess
    process = subprocess.Popen('C:\\中金财富QMT个人版交易端\\bin.x64\\XtMiniQmt.exe')

    session_id = int(time.time())
    xt_trader = XtQuantTrader(path, session_id)
    callback = MyXtQuantTraderCallback()
    xt_trader.register_callback(callback)
    xt_trader.start()
    connect_result = xt_trader.connect()
    if connect_result != 0:
        import sys
        sys.exit('xtquant链接失败，请确认xtminiqmt登录后再重试，程序即将退出 %d' % connect_result)
    # 创建资金账号为"1234567"的证券账号对象，需要改为自己的账号
    acc = StockAccount('1234567')
    print(acc)
    subscribe_result = xt_trader.subscribe(acc)
    if subscribe_result != 0:
        print('账号订阅失败 %d' % subscribe_result)
    print(subscribe_result)
    stock_code = '600000.SH'

    order_go = xt_trader.order_stock(acc, stock_code, xtconstant.STOCK_BUY, 100, xtconstant.FIX_PRICE, 10.5,'strategy_name', 'remark')
    print(order_go)
    cxl_order = xt_trader.cancel_order_stock(acc, order_go)
    print(cxl_order)
    #async_seq = xt_trader.order_stock_async(acc, stock_code, xtconstant.STOCK_BUY, 200, xtconstant.FIX_PRICE, 10.5,'strategy_name', 'remark')
    #print(async_seq)

    asset = xt_trader.query_stock_asset(acc)
    if asset:
        print("资产:")
        print("可用资金 {0}".format(asset.cash))
    order = xt_trader.query_stock_order(acc, order_go)
    if order:
        print("委托:")
        print("委托 {0}".format(order.order_id))
    orders = xt_trader.query_stock_orders(acc)
    print("所有委托:", len(orders))
    if len(orders) != 0:
        print("最终委托:")
        print("{0} {1} {2}".format(orders[-1].stock_code, orders[-1].order_volume, orders[-1].price))
    trades = xt_trader.query_stock_trades(acc)
    print("所有交易:", len(trades))
    if len(trades) != 0:
        print("最终成交:")
        print("{0} {1} {2}".format(trades[-1].stock_code, trades[-1].traded_volume, trades[-1].traded_price))
    positions = xt_trader.query_stock_positions(acc)
    print("持仓:", len(positions))
    if len(positions) != 0:
        print("所有持仓:")
        print("{0} {1} {2}".format(positions[-1].account_id, positions[-1].stock_code, positions[-1].volume))
    position = xt_trader.query_stock_position(acc, stock_code)
    if position:
        print("持仓:")
        print("{0} {1} {2}".format(position.account_id, position.stock_code, position.volume))
    xt_trader.run_forever()  

上述测试代码执行下来，一直提示交易账户参数不能为空，能查询账户余额之类都没问题。如下所述，求解。

开始运行 <xtquant.xttype.StockAccount object at 0x00000260A764F9B0> 0 135266310 委托失败 135266310 10 限价买入 [SH600000] 功能入参[交易账户]不能为空 0 资产: 可用资金 100000.0 所有委托: 0 所有交易: 0 持仓: 0

补充说明，大QMT和MINI账号都是都正常登录