appium: Fatal TypeError: Class constructor BaseDriver cannot be invoked without 'new' when starting appium CLI

The problem

Cannot run appium cli after upgrading to 1.9.1. Last version which worked fine is 1.8.1. When running from the command line, I get the error Fatal TypeError: Class constructor BaseDriver cannot be invoked without 'new' (see below for the full output).

Environment

• Appium version (or git revision) that exhibits the issue: 1.9.1
• Last Appium version that did not exhibit the issue (if applicable): 1.8.1
• Desktop OS/version used to run Appium: macOS High Sierra
• Node.js version (unless using Appium.app|exe): 9.11.1
• Mobile platform/version under test: N/A
• Real device or emulator/simulator: N/A
• Appium CLI or Appium.app|exe: CLI

Details

If necessary, describe the problem you have been experiencing in more detail.

Link to Appium logs

seavan@mbpro2016 peerio-mobile $ ./node_modules/.bin/appium
[Appium] Welcome to Appium v1.9.1
Fatal TypeError: Class constructor BaseDriver cannot be invoked without 'new'
    at new AppiumDriver (/Users/seavan/Documents/peerio/peerio-mobile/node_modules/appium/lib/appium.js:131:19)
    at main$ (/Users/seavan/Documents/peerio/peerio-mobile/node_modules/appium/lib/main.js:124:16)
    at tryCatch (/Users/seavan/Documents/peerio/peerio-mobile/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/Users/seavan/Documents/peerio/peerio-mobile/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/Users/seavan/Documents/peerio/peerio-mobile/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at GeneratorFunctionPrototype.invoke (/Users/seavan/Documents/peerio/peerio-mobile/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
    at <anonymous>

Code To Reproduce Issue [ Good To Have ]

Run the appium on fresh install (CLI).