SAP导出表格报错

1.编写一个SAP程序，自动导出资金负债表，在导出时 使用导出表格命令报错，尝试了安装750客户端也无法解决。

2.Property '<unknown>.key' can not be set.

Traceback (most recent call last):
File "C:\Program Files (x86)\ShadowBot\shadowbot-5.13.33\python\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "C:\Program Files (x86)\ShadowBot\shadowbot-5.13.33\python\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\Program Files (x86)\ShadowBot\shadowbot-5.13.33\python\lib\site-packages\xbot_interpreter.py", line 94, in <module>
main()
File "C:\Program Files (x86)\ShadowBot\shadowbot-5.13.33\python\lib\site-packages\xbot_interpreter.py", line 53, in main
try:
File "C:\Users\11455\AppData\Local\ShadowBot\users\80139724331819009\apps\41b6fc5d-f0cf-440c-b3ef-f96a493dfd3e\xbot_robot\process1.py", line 41, in main
], _block=("查询资产负债表", 8, "导出表格(SAP)"))
File "<string>", line 89, in wrapper
File "<string>", line 84, in wrapper
File "<string>", line 82, in run
File "C:\Users\11455\AppData\Local\ShadowBot\users\80139724331819009\apps\41b6fc5d-f0cf-440c-b3ef-f96a493dfd3e\xbot_extensions\activity_sap\B_8_export_xlsx.py", line 22, in main
save_path = sap.export_xlsx(sap_ele_path,save_dir,save_filename, file_kind)
File "C:\Users\11455\AppData\Local\ShadowBot\users\80139724331819009\apps\41b6fc5d-f0cf-440c-b3ef-f96a493dfd3e\xbot_extensions\activity_sap\sapgui.py", line 45, in inner
res = func(self, *args, **kwargs)
File "C:\Users\11455\AppData\Local\ShadowBot\users\80139724331819009\apps\41b6fc5d-f0cf-440c-b3ef-f96a493dfd3e\xbot_extensions\activity_sap\sapgui.py", line 425, in export_xlsx
self.session.findById("wnd[1]/usr/cmbG_LISTBOX").key = file_kind
File "C:\Program Files (x86)\ShadowBot\shadowbot-5.13.33\python\lib\site-packages\win32com\client\dynamic.py", line 581, in __setattr__
raise AttributeError("Property '%s.%s' can not be set." % (self._username_, attr))
AttributeError: Property '<unknown>.key' can not be set.