vnpy3.7版本使用dolphindb录制1分钟k线数据的报错代码如下所示：
Traceback (most recent call last): File "C:\veighna_studio\lib\site-packages\vnpy_datarecorder\ui\widget.py", line 157, in process_exception_event raise exc_info[1].with_traceback(exc_info[2]) File "C:\veighna_studio\lib\site-packages\vnpy_datarecorder\engine.py", line 117, in run self.database.save_bar_data(data, stream=True) File "C:\veighna_studio\lib\site-packages\vnpy_dolphindb\dolphindb_database.py", line 94, in save_bar_data overview_table = self.session.loadTable(tableName="baroverview", dbPath=self.db_path) File "C:\veighna_studio\lib\site-packages\dolphindb\session.py", line 758, in loadTable return Table(data=tbName, s=self, isMaterialized=True) File "C:\veighna_studio\lib\site-packages\dolphindb\table.py", line 157, in __init__ self._init_schema() File "C:\veighna_studio\lib\site-packages\dolphindb\table.py", line 339, in _init_schema schema = self.__session.run("schema(%s)" % self.__tableName) # type: dict File "C:\veighna_studio\lib\site-packages\dolphindb\session.py", line 453, in run return self.cpp.run(script, *args, **kwargs) RuntimeError: <Exception> in run: Received invalid header: _
