npm run testbed fails on first boot

[cdaringe]

npm run testbed ==>

ERROR in ./~/css-loader!./~/sass-loader?outputStyle=expanded&includePaths[]=/Users/cdieringer/node/patternity/~/bourbon/app/ass
ets/stylesheets&includePaths[]=/Users/cdieringer/node/patternity/~/bourbon-neat/app/assets/stylesheets!./src/simplified-pager/s
implified-pager.scss                                                                                                           
Module build failed:                                                                                                           
      border-color: $light-grey;                                                                                               
                   ^                                                                                                           
      Undefined variable: "$light-grey".                                                                                       
      in /Users/cdieringer/node/patternity/src/simplified-pager/simplified-pager.scss (line 18, column 21)                     
 @ ./src/simplified-pager/simplified-pager.scss 4:14-345 13:2-17:4 14:20-351