一直显示“正在获取设备列表”

[superadison]

按提示安装qt4i和设置qt4i-manage路径后，点击“连接”一直显示“正在获取设备列表”，没法列出当前设备（真机，idevice_id可以查看到已连接设备）
2019-08-05 18:07:39,118 [main] UISpy started...
cost time: 0.153376102448
Exception in thread Thread-1:
Traceback (most recent call last):
File "threading.py", line 810, in __bootstrap_inner
File "threading.py", line 763, in run
File "ui/mainframe.py", line 267, in _update_device_list
IndexError: list index out of range