appium升级的坑@1.9.1

兴致冲冲把appium升级到1.9.1,意料之中,又掉坑里了……

[Appium] Welcome to Appium v1.9.1
Fatal TypeError: Class constructor BaseDriver cannot be invoked without ‘new’
at new AppiumDriver (/usr/local/lib/node_modules/appium/lib/appium.js:131:19)
at main$ (/usr/local/lib/node_modules/appium/lib/main.js:124:16)
at tryCatch (/usr/local/lib/node_modules/appium/node_modules/_babel-runtime@5.8.24@babel-runtime/regenerator/runtime.js:67:40)
at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/_babel-runtime@5.8.24@babel-runtime/regenerator/runtime.js:315:22)
at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/_babel-runtime@5.8.24@babel-runtime/regenerator/runtime.js:100:21)
at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/_babel-runtime@5.8.24@babel-runtime/regenerator/runtime.js:136:37)
at

百度无果,看遇到此问题的一网友通过卸载重装1.8解决。
科学上网,Google,找到解决方案 https://github.com/appium/appium/issues/11477
升级appium到1.9.2-beta.2,
cnpm install -g appium@1.9.2-beta.2