start_app("xxxxx")报错，airtest.core.ios.wda_client.WDAError: WDAError(status=1, value=Unhandled endpoint

ios-tagent 5.27的
iOS12.4
Xcode 11.2.1
python airtest库 1.1.14

使用AirtestIDE运行start_app()正常
使用python或是命令行调用start_app()失败
报错信息：

/Users/zhaoyue/PycharmProjects/AirtestProject/venv/bin/python /Users/zhaoyue/PycharmProjects/AirtestProject/TestDemos/airtestText.py
Traceback (most recent call last):
File "/Users/zhaoyue/PycharmProjects/AirtestProject/TestDemos/airtestText.py", line 27, in
start_app('com.google.chrome.ios')
File "/Users/zhaoyue/PycharmProjects/AirtestProject/venv/lib/python3.7/site-packages/airtest/utils/logwraper.py", line 71, in wrapper
res = f(*args, **kwargs)
File "/Users/zhaoyue/PycharmProjects/AirtestProject/venv/lib/python3.7/site-packages/airtest/core/api.py", line 150, in start_app
G.DEVICE.start_app(package, activity)
File "/Users/zhaoyue/PycharmProjects/AirtestProject/venv/lib/python3.7/site-packages/airtest/core/ios/ios.py", line 259, in start_app
self.session.start_app_new(package)
File "/Users/zhaoyue/PycharmProjects/AirtestProject/venv/lib/python3.7/site-packages/airtest/core/ios/wda_client.py", line 415, in start_app_new
return self.http.post('/wda/apps/launch', data=data)
File "/Users/zhaoyue/PycharmProjects/AirtestProject/venv/lib/python3.7/site-packages/airtest/core/ios/wda_client.py", line 101, in fetch
return self._fetch_no_alert(method, url, data)
File "/Users/zhaoyue/PycharmProjects/AirtestProject/venv/lib/python3.7/site-packages/airtest/core/ios/wda_client.py", line 107, in _fetch_no_alert
return httpdo(target_url, method, data)
File "/Users/zhaoyue/PycharmProjects/AirtestProject/venv/lib/python3.7/site-packages/airtest/core/ios/wda_client.py", line 83, in httpdo
raise WDAError(r.status, r.value)
airtest.core.ios.wda_client.WDAError: WDAError(status=1, value=Unhandled endpoint: /session/F0B0419D-69AC-49AB-8C40-16A0F815405B/wda/apps/launch -- http://127.0.0.1:8100/ with parameters {
wildcards = (
"session/F0B0419D-69AC-49AB-8C40-16A0F815405B/wda/apps/launch"
);
})

Process finished with exit code 1