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i'm deploying a rails 4 app to heroku, getting 

Running: rake assets:precompile
   I, [2013-10-31T13:50:45.980969 #699]  INFO -- : Writing /tmp/build_66fd87fd-a9f1-442b-88b3-ccbc9f7f6e28/public/assets/application-ffa1a91721fb49b9c6414032f35a7045.js
   rake aborted!
   Undefined mixin 'transform'.
   (in /tmp/build_66fd87fd-a9f1-442b-88b3-ccbc9f7f6e28/app/assets/stylesheets/main.css.scss:29)
   /tmp/build_66fd87fd-a9f1-442b-88b3-ccbc9f7f6e28/app/assets/stylesheets/main.css.scss:29:in `transform'
   /tmp/build_66fd87fd-a9f1-442b-88b3-ccbc9f7f6e28/app/assets/stylesheets/main.css.scss:29

everything is working locally including the style that mixin is associate with so I'm confused about this. Not seeing much documentation on google:foo about what the problem is. I've got 

  config.assets.initialize_on_precompile = false

in application.rb

Any thoughts on what to do here ?

John
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1 Answers1

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It looks like your application.css.scss includes a main.css.scss which references bourbon mixins. You need add @import 'bourbon' to the top of your main.css.scss file and any other scss file that references the mixins.

sguha
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