Object.extname is deprecated.

[AERodgers]

Argument to path.extname must be a string

Object.extname (C:\Users\rodge\AppData\Local\atom\app-1.40.1\resources\app.asar\src\electron-shims.js:20:10)
<unknown> (C:\Users\rodge\.atom\packages\external-open\lib\external-open.coffee:64:131)
Workspace.createItemForURI (<embedded>:11:432997)
Workspace.open (<embedded>:11:430705)
HTMLElement.subscriptions.add.atom.commands.add (<embedded>:11:246256)
CommandRegistry.handleCommandEvent (<embedded>:11:349123)