22:42:30 rb.SHFE-1m开始下载历史数据
22:42:34 数据下载失败，触发异常：
Traceback (most recent call last):
File "C:\veighna_studio\lib\site-packages\vnpy_ctabacktester\engine.py", line 422, in run_downloading
data: List[BarData] = self.datafeed.query_bar_history(req, self.write_log)
File "C:\veighna_studio\lib\site-packages\vnpy_tqsdk\tqsdk_datafeed.py", line 49, in query_bar_history
df: DataFrame = api.get_kline_data_series(
File "C:\veighna_studio\lib\site-packages\tqsdk\api.py", line 892, in get_kline_data_series
return self._get_data_series("get_kline_data_series", symbol, duration_seconds, start_dt, end_dt, adj_type)
File "C:\veighna_studio\lib\site-packages\tqsdk\api.py", line 970, in _get_data_series
self._ensure_symbol(symbol_list) # 检查合约代码是否存在
File "C:\veighna_studio\lib\site-packages\tqsdk\api.py", line 505, in _ensure_symbol
if not self.wait_update(deadline=deadline, _task=task):
File "C:\veighna_studio\lib\site-packages\tqsdk\api.py", line 1905, in wait_update
self._run_until_task_done(task=update_task, deadline=deadline)
File "C:\veighna_studio\lib\site-packages\tqsdk\baseApi.py", line 88, in _run_until_task_done
self._run_once()
File "C:\veighna_studio\lib\site-packages\tqsdk\baseApi.py", line 57, in _run_once
raise self._exceptions.pop(0)
File "C:\veighna_studio\lib\site-packages\tqsdk\symbols.py", line 41, in _run
raise Exception(f"查询合约服务报错 {query_result['error']}")
Exception: 查询合约服务报错 failed to execute graphql operation, errors: [variable instrument_id: [SHFE.rb] contains non-existent instrument: SHFE.rb]
