登入SAP的报错是这个是为什么

(-2147352567, '发生意外。', (1000, 'saplogon', 'SAP Logon connection entry not found', None, 0, 0), None)

[错误来源]

   TEST > 主流程 > 行1: 登录 SAP

   SAP 扩展 >  > 行24: sap.login(connection, username, password, crop_id, after_login)

   SAP 扩展 > sapgui > 行82: res = func(self, *args, **kwargs)

   SAP 扩展 > sapgui > 行103: self.connection = self.application.OpenConnection(connection, True)

执行 self.connection = self.application.OpenConnection(connection, True) 时出错:  (-2147352567, '发生意外。', (1000, 'saplogon', 'SAP Logon connection entry not found', None, 0, 0), None)