I'm getting an error while trying to add front matter variables.

---
name: results
url: /results
animationIn: slideInLeft
activities: 
    - Hiking
    - Walking
    - Running
    - Mountain Biking
    - Fishing
---

<ul class="no-bullet">
     <li ng-repeat="activity in vars.activities">
          <input id="" type="checkbox"><label for=""></label>
     </li>
</ul>

> foundation-apps-template@1.1.0 start /Users/joelcrouse/Desktop/trekker
> gulp

[18:32:40] Using gulpfile ~/Desktop/trekker/gulpfile.js
[18:32:40] Starting 'build'...
[18:32:40] Starting 'clean'...
[18:32:40] Finished 'clean' after 19 ms
[18:32:40] Starting 'copy'...
[18:32:40] Starting 'copy:foundation'...
[18:32:40] Finished 'copy:foundation' after 331 ms
[18:32:40] Starting 'sass'...
[18:32:40] Starting 'uglify:foundation'...
[18:32:40] Starting 'uglify:app'...
[18:32:40] Finished 'uglify:app' after 163 ms
[18:32:40] Finished 'uglify:foundation' after 325 ms
[18:32:40] Starting 'uglify'...
[18:32:40] Finished 'uglify' after 5.33 μs
[18:32:41] Finished 'copy' after 970 ms
[18:32:41] Finished 'sass' after 1.13 s
[18:32:41] Starting 'copy:templates'...
[18:32:41] Finished 'copy:templates' after 33 ms
[18:32:41] Finished 'build' after 1.52 s
[18:32:41] Starting 'server'...
[18:32:43] Webserver started at http://localhost:8079
[18:32:43] Finished 'server' after 1.62 s
[18:32:43] Starting 'default'...
[18:32:43] Finished 'default' after 47 ms
[18:33:38] Starting 'copy:templates'...
/Users/joelcrouse/Desktop/trekker/node_modules/front-router/node_modules/gulp-util/lib/PluginError.js:73
  if (!this.message) throw new Error('Missing error message');
                     ^

Error: Missing error message
    at new PluginError (/Users/joelcrouse/Desktop/trekker/node_modules/front-router/node_modules/gulp-util/lib/PluginError.js:73:28)
    at DestroyableTransform.bufferContents [as _transform] (/Users/joelcrouse/Desktop/trekker/node_modules/front-router/index.js:28:19)
    at DestroyableTransform.Transform._read (/Users/joelcrouse/Desktop/trekker/node_modules/front-router/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:184:10)
    at DestroyableTransform.Transform._write (/Users/joelcrouse/Desktop/trekker/node_modules/front-router/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:172:12)
    at doWrite (/Users/joelcrouse/Desktop/trekker/node_modules/front-router/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:237:10)
    at writeOrBuffer (/Users/joelcrouse/Desktop/trekker/node_modules/front-router/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:227:5)
    at DestroyableTransform.Writable.write (/Users/joelcrouse/Desktop/trekker/node_modules/front-router/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:194:11)
    at write (/Users/joelcrouse/Desktop/trekker/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:623:24)
    at flow (/Users/joelcrouse/Desktop/trekker/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:632:7)
    at DestroyableTransform.pipeOnReadable (/Users/joelcrouse/Desktop/trekker/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:664:5)
Error: foundation-apps-template@1.1.0 start: `gulp`
Exit status 1
    at EventEmitter.<anonymous> (/usr/local/lib/node_modules/foundation-cli/node_modules/npm/lib/utils/lifecycle.js:214:16)
    at emitTwo (events.js:87:13)
    at EventEmitter.emit (events.js:172:7)
    at ChildProcess.<anonymous> (/usr/local/lib/node_modules/foundation-cli/node_modules/npm/lib/utils/spawn.js:24:14)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:172:7)
    at maybeClose (internal/child_process.js:817:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)