iOS 使用 hide_keyboard() 隐藏键盘，报错内容：
{InvalidElementStateException}Message: Error Domain=com.facebook.WebDriverAgent Code=1 "Did not know how to dismiss the keyboard. Try to dismiss it in the way supported by your application under test." UserInfo={NSLocalizedDescription=Did not know how to dismiss the keyboard. Try to dismiss it in the way supported by your application under test.}
Stacktrace:
InvalidElementStateError: Error Domain=com.facebook.WebDriverAgent Code=1 "Did not know how to dismiss the keyboard. Try to dismiss it in the way supported by your application under test." UserInfo={NSLocalizedDescription=Did not know how to dismiss the keyboard. Try to dismiss it in the way supported by your application under test.}
at errorFromW3CJsonCode (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/appium-base-driver/lib/protocol/errors.js:780:25)
at ProxyRequestError.getActualError (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/appium-base-driver/lib/protocol/errors.js:663:14)
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