Troubleshooting `bin/packwerk validate` Failures: Common Causes

Tools Packwerk
1

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In what cases does bin/packwerk validate fail?
For the moment I found these three:

  1. Cyclic dependencies graph
  2. Unknown key in package.yml (example enforce_something: true will fail)
  3. List a non-existing package as a dependency
2
  1. Autoload clash (e.g. components/a/app/models/model.rb and components/b/app/models/model.rb bot defining Model)