Zeitwerk::NameError: expected file /opt/rubies/ruby-2.6.6/lib/ruby/gems/2.6.0/bundler/gems/solidus_shipstation-20783e6a9dfd/app/models/spree/shipment_decorator.rb to define constant Spree::ShipmentDecorator, but didn't

[paulsingh]

Solidus Version:
2.10.2

To Reproduce

1. With Solidus running on an existing Rails 6 app, add the solidus_shipstation gem along with the configuration details outlined in the README.
2. While testing locally, all should be fine.
3. When deploying into production, it will fail. Log output below...

Current behavior
The deploy should be completed successfully. Instead, an Zeitwerk::NameError: expected file /opt/rubies/ruby-2.6.6/lib/ruby/gems/2.6.0/bundler/gems/solidus_shipstation-20783e6a9dfd/app/models/spree/shipment_decorator.rb to define constant Spree::ShipmentDecorator, but didn't error is thrown.

Expected behavior
The deploy should be completed successfully.

Desktop (please complete the following information):

• OS: MacOS Catalina 10.15.6
• Chrome
• Version 84.0.4147.105

Additional context
Log output is available here: https://gist.github.com/paulsingh/1ea5c82c94d2f8e1e3b463f488b1e5a3

[paulsingh]

Quick update: I can't seem to get this to happen on my local development environment. For whatever reason, it's only happening in production. Still poking around, will update as I learn more.

[mustiag]

@paulsingh Any luck finding a fix for this?