Uncaught TypeError: atom.project.getPath is not a function

[kelly-o]

[Enter steps to reproduce:]

1. open preview for .rst file
2. select Save as HTML option

Atom: 1.21.2 x64
Electron: 1.6.15
OS: Mac OS X 10.12.6
Thrown From: rst-preview package 1.3.1

Stack Trace

Uncaught TypeError: atom.project.getPath is not a function

At /Users/Eva/.atom/packages/rst-preview/lib/rst-preview-view.coffee:196

TypeError: atom.project.getPath is not a function
    at RstPreviewView.module.exports.RstPreviewView.saveAs (/packages/rst-preview/lib/rst-preview-view.coffee:196:37)
    at /packages/rst-preview/lib/rst-preview-view.coffee:91:10)
    at CommandRegistry.handleCommandEvent (/Applications/Atom.app/Contents/Resources/app/src/command-registry.js:381:36)
    at CommandRegistry.dispatch (/Applications/Atom.app/Contents/Resources/app/src/command-registry.js:266:23)
    at AtomEnvironment.module.exports.AtomEnvironment.dispatchContextMenuCommand (/Applications/Atom.app/Contents/Resources/app/src/atom-environment.js:1354:34)
    at EventEmitter.outerCallback (/Applications/Atom.app/Contents/Resources/app/src/application-delegate.js:348:31)
    at emitThree (events.js:116:13)
    at EventEmitter.emit (events.js:194:7)

Commands

     -0:49.2.0 core:paste (input.hidden-input)
     -0:39.7.0 rst-preview:toggle (input.hidden-input)
     -0:34.9.0 core:copy (p.)
     -0:34.5.0 core:select-all (div.rst-preview.native-key-bindings)
     -0:32.2.0 core:cancel (div.rst-preview.native-key-bindings)
     -0:22.1.0 core:copy (p.)
     -0:18.7.0 application:new-file (div.rst-preview.native-key-bindings)
     -0:18.2.0 core:paste (input.hidden-input)
     -0:07.5.0 core:save-as (p.)

Non-Core Packages

atom-html-preview 0.2.2 
block-travel 1.0.5 
language-confluence-wiki 0.2.0 
language-restructuredtext 1.1.0 
language-vbscript 0.9.0 
markdown-themeable-pdf 1.2.0 
rst-preview 1.3.1 
tree-view-git-branch 0.1.2 
wordcount 2.10.4