Failed to activate the node-resolver package

[Enter steps to reproduce:]

1. ...
2. ...

**Atom**: 1.22.1 x64
**Electron**: 1.6.15
**OS**: Mac OS X 10.13.1
**Thrown From**: [node-resolver](git://github.com/hughsk/atom-node-resolver) package 1.0.1

### Stack Trace

Failed to activate the node-resolver package

```
At Cannot read property 'command' of undefined

TypeError: Cannot read property 'command' of undefined
at Object.exports.activate (/packages/node-resolver/index.js:12:21)
at Package.module.exports.Package.activateNow (/Applications/Atom.app/Contents/Resources/app/src/package.js:253:25)
at /Applications/Atom.app/Contents/Resources/app/src/package.js:225:38
at Package.module.exports.Package.measure (/Applications/Atom.app/Contents/Resources/app/src/package.js:99:21)
at /Applications/Atom.app/Contents/Resources/app/src/package.js:218:32
at Package.module.exports.Package.activate (/Applications/Atom.app/Contents/Resources/app/src/package.js:215:40)
at PackageManager.activatePackage (/Applications/Atom.app/Contents/Resources/app/src/package-manager.js:690:42)
at config.transactAsync (/Applications/Atom.app/Contents/Resources/app/src/package-manager.js:665:36)
at Config.module.exports.Config.transactAsync (/Applications/Atom.app/Contents/Resources/app/src/config.js:367:24)
at PackageManager.activatePackages (/Applications/Atom.app/Contents/Resources/app/src/package-manager.js:663:23)
at PackageManager.activate (/Applications/Atom.app/Contents/Resources/app/src/package-manager.js:646:50)
at /Applications/Atom.app/Contents/Resources/app/src/atom-environment.js:854:36
```

### Commands

```
```

### Non-Core Packages

```
atom-axios 0.7.0
javascript-snippets 1.2.1
language-vue 0.23.1
markdown-assistant 0.2.0
node-resolver 1.0.1
nodejs-snippets 2.0.2
qiniu-uploader 0.0.5
vue-autocomplete 0.1.1
vue2-autocomplete 0.1.0-alpha.4
vuejs2-snippets 0.14.0
```