XtQuantTrader总是无法连接，返回-1

path = "C:/QMT/userdata"
session_id = int(time.time())
xt_trader = XtQuantTrader(path, session_id)

xt_trader.start()
connect_result = xt_trader.connect()
print("建立交易连接，返回0表示连接成功", connect_result)

修改路径为C:\QMT\userdata_mini，好了