readFile is not a function

[alex-calderwood]

I'm getting this error when I try to run the library.

index.js:62 Uncaught (in promise) TypeError: _fsPromise2.default.readFile is not a function
    at _callee2$ (index.js:62:1)
    at tryCatch (runtime.js:65:1)
    at Generator.invoke [as _invoke] (runtime.js:303:1)
    at prototype.<computed> [as next] (runtime.js:117:1)
    at step (asyncToGenerator.js:17:1)
    at asyncToGenerator.js:35:1
    at new Promise (<anonymous>)
    at new F (_export.js:35:1)
    at asyncToGenerator.js:14:1
    at loadStopWords (index.js:77:1)

Not sure where my issue is, but investigating a bit, I find that the _fsPromise2 object has a bunch of functions that are undefined, including readFile