Incompatibility with Marcel 1.0.3

[toby-brilliant]

Marcel released recently, for the first time in years. As the project mentions here, it seems CarrierWave was relying on a private constant which changed.

This line:

carrierwave/lib/carrierwave/downloader/remote_file.rb

Line 36 in ed87991

mime_type = Marcel::TYPES[content_type]

does not work with the newly released Marcel 1.0.3 as Marcel::TYPES has been changed. This yields stack traces that look something like:

     NameError:
       uninitialized constant Marcel::TYPES
     # ./app/models/attachment.rb:44:in `block in set_remote_url'
     # ./app/models/attachment.rb:40:in `set_remote_url

any time set_remote_url is used.

For anyone stuck on this, you can add Marcel directly to your Gemfile and pin it to the last version (e.g. gem "marcel", "=1.0.2")

[fwolfst]

Note that jeremy gives instructions about how to fix this in rails/marcel#98 (comment) .

[bvogel]

fixed by #2728

luckily I found/suggested the same fix that @jeremy suggested.

[Muscul]

Please upgrade gem version and apply this fix in rubgems.

[mshibuya]

Released 3.0.6.
https://rubygems.org/gems/carrierwave/versions/3.0.6