After loading when I run node app.js I get this error:

500 TypeError: /Users/ricksturgeon/express_apps/arranger_test/myproject/views/layout.jade:9

   7|     meta(name='csrf-token', content=_csrf)
   8|     title #{title} - Hackathon Starter
 > 9|     != css('main')
   10|   body
   11|     include partials/navbar
   12| 

Argument must be a string
at new ProcessedAsset (/Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/assets/processed.js:149:24)
at /Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/base.js:541:12
at circular_call_protection (/Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/base.js:514:12)
at Index.Base.buildAsset (/Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/base.js:540:10)
at /Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/index.js:141:26
at Index.module.exports.cacheAsset (/Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/helpers/caching.js:52:12)
at Index.buildAsset (/Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/index.js:140:33)
at Index.Base.findAsset (/Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/base.js:350:15)
at Index.findAsset (/Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/index.js:114:22)
at new BundledAsset (/Users/ricksturgeon/express_apps/arranger_test/myproject/node_modules/connect-assets/node_modules/mincer/lib/mincer/assets/bundled.js:53:37)

When I change to: the scss file loads but the app does not properly layout.

Ideas??