Description

Since Atom 1.7.0-beta0, Atom fails to open when initiated from the dock (Mac). It seems to work fine when opened from the terminal.

When called from the dock, a debugger window appear with the traceback

TypeError: Path must be a string. Received undefined
    at assertPath (path.js:8)
    at Object.posix.join (path.js:479)
    at Object.fsPlus.resolve (/Applications/Atom Beta.app/Contents/Resources/app.asar/node_modules/fs-plus/lib/fs-plus.js:461)
    at new Config (/Applications/Atom Beta.app/Contents/Resources/app.asar/src/config.js:81)
    at new AtomEnvironment (/Applications/Atom Beta.app/Contents/Resources/app.asar/src/atom-environment.js:181)
    at module.exports (/Applications/Atom Beta.app/Contents/Resources/app.asar/src/initialize-application-window.js:23)
    at setupWindow (index.js:87)
    at window.onload (index.js:41)

Steps to Reproduce

1. Open Atom from the dock icon.

Versions

Atom : 1.7.0-beta0
Electron: 0.36.8
Chrome : 47.0.2526.110
Node : 5.1.1

OSX: 10.11.3

Installed packages:
├── Sublime-Style-Column-Selection@1.5.1
├── auto-detect-indentation@1.0.0
├── autocomplete-paths@1.0.2
├── autocomplete-python@1.7.0
├── file-icons@1.6.18
├── git-plus@5.13.0
├── highlight-selected@0.11.2
├── language-fish-shell@1.0.3
├── language-idl@0.4.0
├── language-latex@0.6.1
├── latex@0.32.0
├── linter@1.11.3
├── linter-flake8@1.13.0
├── merge-conflicts@1.3.7
├── minimap@4.21.0
├── minimap-find-and-replace@4.5.0
├── nucleus-dark-ui@0.7.14
├── open-terminal-here@2.1.4
├── project-manager@2.7.6
├── python-indent@0.4.2
├── set-syntax@0.3.0
└── synced-sidebar@0.4.3