Uncaught TypeError: Path must be a string. Received undefined

[pratledge]

[Enter steps to reproduce:]

1. ...
2. ...

Atom: 1.31.2 x64
Electron: 2.0.7
OS: Microsoft Windows 10 Home
Thrown From: gpp package 0.4.3

Stack Trace

Uncaught TypeError: Path must be a string. Received undefined

At path.js:28

TypeError: Path must be a string. Received undefined
    at assertPath (path.js:28:11)
    at Object.parse (path.js:999:5)
    at Object.compile (/packages/gpp/index.js:27:27)
    at /packages/gpp/index.js:429:18)
    at CommandRegistry.handleCommandEvent (~/AppData/Local/atom/app-1.31.2/resources/app/src/command-registry.js:384:49)
    at KeymapManager.module.exports.KeymapManager.dispatchCommandEvent (~/AppData/Local/atom/app-1.31.2/resources/app/node_modules/atom-keymap/lib/keymap-manager.js:621:22)
    at KeymapManager.module.exports.KeymapManager.handleKeyboardEvent (~/AppData/Local/atom/app-1.31.2/resources/app/node_modules/atom-keymap/lib/keymap-manager.js:412:28)
    at WindowEventHandler.handleDocumentKeyEvent (~/AppData/Local/atom/app-1.31.2/resources/app/src/window-event-handler.js:110:40)

Commands

Non-Core Packages

gpp 0.4.3 
teletype 0.13.3