CODEWITHSUNDEEP
ruby-on-railsherokuwebpackwebpacker
zerovolts
zerovolts

Reputation: 13

Heroku build failing: "can't find executable webpack for gem webpacker"

My Rails/React application is failing when I deploy to Heroku. This was not always the case; it only started happening after reinstalling Webpack locally (for a different project). The app still works fine on my local machine.

I've tried creating a new Heroku app to no avail, and tried reverting to a previous working commit, which also fails now for some reason. There's nothing in the changelog that looks like it would cause any problems except for maybe a change from webpacker (3.2.0) to webpacker (3.3.1).

Here's the related part of the Heroku build log:

/tmp/build_f18e594f7966bd80b565c49de7015c56/zerovolts-kanjibenkyo-9786c55/vendor/bundle/ruby/2.3.0/gems/bundler-1.15.2/lib/bundler/rubygems_integration.rb:432:in `block in replace_bin_path': can't find executable webpack for gem webpacker (Gem::Exception)
from /tmp/build_f18e594f7966bd80b565c49de7015c56/zerovolts-kanjibenkyo-9786c55/vendor/bundle/ruby/2.3.0/gems/bundler-1.15.2/lib/bundler/rubygems_integration.rb:463:in `block in replace_bin_path'
from ./bin/webpack:21:in `<main>'

Full build log here.

Upvotes: 1

Views: 767

Answers (1)

ytbryan
ytbryan

Reputation: 2694

can't find executable webpack for gem webpacker (Gem::Exception)

Basically, the executable bin/webpack is missing.

The easiest way is to run rails new app --webpack and go to the newly created app directory and go to app/bin directory and copy those missing files into your own project.

let me know if this fixes your issue

Upvotes: 1

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