Fails to Compile

[Culpable]

Hiya,

I think harp is really awesome, and this boilerplate looks pretty neato.

Is this still being developed? If not, are there any boiler plates you can recommend? I am getting the following errors when trying to compile:

 "source": "Jade",
  "dest": "HTML",
  "filename": "/Users/Satsu/baseline-master/_layout.jade",
  "lineno": 30,
  "name": "TypeError",
  "message": "Cannot read property 'twitter' of undefined",
  "stack": "doctype html\nhtml(lang=\"en\")\n  head\n    meta(charset='utf-8')\n    meta(name='viewport', content='width=device-width, initial-scale=1.0, maximum-scale=1.0')\n    title= locals.title ? title + \" | \" + site_title : site_title\n    \n    meta(property='og:title', content=locals.title ? title + \" | \" + site_title : site_title)\n    if current.path[0] === \"index\"\n      meta(name='description', content=description)\n    else if current.path[0] === \"blog\"\n      meta(name='description', content=description)\n    \n    if current.path[0] === \"index\"\n      meta(property='og:type', content='website')\n      meta(property='og:description', content=description)\n      meta(property='og:url', content=site_url)\n        \n    else if current.path[0] === \"blog\"\n      meta(property='og:type', content='article')\n      meta(property='og:description', content=description)\n      meta(property='og:url', content=site_url + \"/blog/\" + current.path[1])\n        \n    meta(property='og:image', content=site_url + logo)\n    meta(property='og:site_name', content=site_title)\n    meta(name='twitter:card', content='summary')\n    meta(name='twitter:site', content=\"@\" + site_twitter)\n      \n    if current.path[0] === \"blog\"\n      if public.authors._data[author].twitter\n        meta(name='twitter:creator', content=\"@\" + public.authors._data[author].twitter)\n    meta(name='twitter:title', content=locals.title ? title + \" | \" + site_title : site_title)\n    meta(name='twitter:description', content=description)\n    meta(name='twitter:image', content=site_url + logo)\n      \n    if current.path[0] === \"blog\"\n      if public.authors._data[author].google_plus\n        link(rel='author', href='#{ public.authors._data[author].google_plus }')\n          \n    link(rel='shortcut icon', href='/favicon.ico')\n    link(rel='alternate', type='application/rss+xml', title=site_title + \"RSS Feed\", href='/blog/rss.xml')\n    link(rel='stylesheet', href='http://fonts.googleapis.com/css?family=Merriweather:400,300,300italic,400italic,700,700italic')\n    link(rel='stylesheet', href='http://fonts.googleapis.com/css?family=Lekton')\n    link(rel=\"stylesheet\", href='/css/main.css')\n    //if lt IE 9\n      <script src=\"/js/html5shiv.js\"></script>\n    script(type='text/javascript').\n      var _gaq = _gaq || [];\n      _gaq.push(['_setAccount', '#{ locals.analytics_account }']);\n      _gaq.push(['_trackPageview']);\n      (function() {\n      var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;\n      ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';\n      var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);\n      })();\n      \n  body(class=\"page-#{ current.path[0] } #{ current.path.join('-') }\")\n    header.masthead\n      .container\n        h1\n          a(href='/')= site_title\n      .img\n    .content\n      .container\n        if current.path[0] === \"index\" || current.path[0] === \"tags\"\n          .articles\n            if current.path[0] === \"tags\" \n              aside.center\n                h3= current.source.charAt(0).toUpperCase() + current.source.slice(1)\n                hr\n            for post, slug in public.blog._data\n              if post.layout !== false\n                if current.path[0] === \"tags\" \n                  if !post.tags || post.tags.indexOf(current.source) == -1\n                    - continue    \n                article\n                  a.main(href=\"/blog/#{ slug }\")\n                    img(src=\"/images/#{ public.authors._data[post.author].photo }\", alt=\"#{ public.authors._data[post.author].name }\", class=\"author\")\n                    h1.sm= post.title\n                    h2.xs.date #{ post.date } • by #{ public.authors._data[post.author].name }\n                    if post.description\n                      p= post.description  \n                    != partial(\"/_shared/blog-tags.jade\", { tags: post.tags })\n          != yield\n        else\n          if current.path[0] === \"blog\"\n            != partial(\"/blog/_blog\")\n          else if current.path[0] === \"authors\"\n            != partial(\"/authors/_author\")\n          else if [\"404\", \"about\"].indexOf(current.path[0]) !== -1\n            section.page\n              != yield\n"
}