Atom.Object.defineProperty.get is deprecated.

[WagnerGMD]

atom.workspaceView is no longer available.
In most cases you will not need the view. See the Workspace docs for
alternatives: https://atom.io/docs/api/latest/Workspace.
If you do need the view, please use atom.views.getView(atom.workspace),
which returns an HTMLElement.

Atom.Object.defineProperty.get (C:\Users\Crowleys\AppData\Local\atom\app-0.192.0\resources\app\src\atom.js:55:13)
space-pen-div.<anonymous> (C:\Users\Crowleys\.atom\packages\toolbar\lib\toolbar-button-view.coffee:26:15)

For me, it isn't really the same thing with this issue. If I'm wrong sorry in advance.