我这边遇到的问题比较有意思

运行 appium.app 检测环境，全部 OK，如下：

Running iOS Checks

✔ Xcode is installed at /Applications/Xcode.app/Contents/Developer

✔ Xcode Command Line Tools are installed.

✔ DevToolsSecurity is enabled.

✔ The Authorization DB is set up properly.

✔ Node binary found at /usr/local/bin/node
✔ iOS Checks were successful.

命令行启动，或者 appium.app 启动，都出现下面的 info。

appium -U 149afc56ab0434769fd666ca8ac324790a27f5eb --app io.TestApp
info: Welcome to Appium v0.16.0 (REV 292d265edd9c7aaf96f165009285c814b218363d)
info: Appium REST http interface listener started on 0.0.0.0:4723
info - socket.io started
info: Spawning instruments force-quitting watcher process
info: [FQInstruments STDERR] Force quit unresponsive instruments v0.0.1

在 python 这边执行 simple_real_device.py，结果报基础的字符集解码错误。我猜想是服务器端的启动异常引起的。