[hotfix] Raise a helpful error when package reference is not present

conan-io / conan-package-tools

Conan Package Tools. Helps with massive package creation and CI integration (Travis CI, Appveyor...)

MIT License

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Open uilianries opened 2 years ago

uilianries commented 2 years ago

Changelog: Feature: Raise a helpful error when package reference is not defined

fixes #588

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