1、卸载VeighNa3.0.0，重新下载VeighNa3.1.0安装包重新进行安装？
2、在VeighNa3.0.0的更新页面，点击更新，完成自动升级？
3、还是直接安装VeighNa3.1.0进行升级安装？

Traceback (most recent call last):
File "C:\vnstudio\lib\site-packages\vnpy_ctabacktester\engine.py", line 404, in run_downloading
data = self.datafeed.query_bar_history(req)
File "C:\vnstudio\lib\site-packages\vnpy_rqdata\rqdata_datafeed.py", line 164, in query_bar_history
adjust_type="none"
File "C:\vnstudio\lib\site-packages\rqdatac\decorators.py", line 150, in wrap
return func(args, **kwargs)
File "C:\vnstudio\lib\site-packages\rqdatac\services\get_price.py", line 103, in get_price
order_book_ids, market
File "C:\vnstudio\lib\site-packages\rqdatac\services\get_price.py", line 222, in classify_order_book_ids
ins_list = ensure_instruments(order_book_ids, market=market)
File "C:\vnstudio\lib\site-packages\rqdatac\validators.py", line 168, in ensure_instruments
all_instruments = _all_instruments_dict(market)
File "C:\vnstudio\lib\site-packages\rqdatac\decorators.py", line 129, in wrapper
value = user_function(args, kwargs)
File "C:\vnstudio\lib\site-packages\rqdatac\services\basic.py", line 139, in _all_instruments_dict
ins = _all_cached_instruments_list(market)
File "C:\vnstudio\lib\site-packages\rqdatac\decorators.py", line 129, in wrapper
value = user_function(*args, kwargs)
File "C:\vnstudio\lib\site-packages\rqdatac\services\basic.py", line 134, in _all_cached_instruments_list
return _all_instruments_list(market)
File "C:\vnstudio\lib\site-packages\rqdatac\services\basic.py", line 112, in _all_instruments_list
ins = [Instrument(i) for i in get_client().execute("all_instruments", market=market)]
File "C:\vnstudio\lib\site-packages\rqdatac\client.py", line 31, in execute
raise RuntimeError("rqdatac is not initialized")
RuntimeError: rqdatac is not initialized

按照楼主的提示操作了，依然回测下载RQData数据报错。

请问vnstation更新为最新2.4.0版本之后，自己的策略文件目录是什么？

原来版本目录是：c:\vnstudio\Lib\site-packages\vnpy\app\cta_strategy\strategies\

现在最新版本还是这里吗？

请问CTP连接成功后，VN Trader中为什么不能订阅行情？
连接均成功，持仓信息，资金信息均正确。就是输入合约后无法订阅行情信息是什么问题？
一开始以为是simnow测试环境的问题，后来连接个人账户生产环境也同样的问题。求。。。

青青子荆 wrote:

可参考https://www.vnpy.com/forum/topic/5862-an-zhuang-hou-da-bu-kai-bluetooth-api?page=1#pid21742

万分感谢，那个问题解决了。

Bluetooth API,不支持？有没有什么打补丁的办法？还是一定要重新安装操作系统？

请问一下Windows Server 2012R2版本的下安装VNstation2.3.0版本后启动问题如何解决？