After I uninstall biblio 7.x-1.x, I found 2 fields left in contributor_field_collection.
biblio_contributor Entity Reference (module: Entity Reference) Field collection contributor_field_collection
biblio_contributor_role Entity Reference (module: Entity Reference) Field collection contributor_field_collection

I can't deleted contributor_field_collection manually, because I can't find contributor_field_collection in field collection UI.

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shenzhuxi created an issue.