column "foo" referenced in foreign key constraint does not exist

PostgresError: column "person_id" referenced in foreign key constraint does not exist

PostgresError: column "person_id" referenced in foreign key constraint does not exist

DO $$ BEGIN
 ALTER TABLE "story" ADD CONSTRAINT "story_person_id_person_id_fk" FOREIGN KEY ("person_id") REFERENCES "public"."person"("id") ON DELETE no action ON UPDATE no action;
EXCEPTION
 WHEN duplicate_object THEN null;
END $$;

DO $$ BEGIN
 ALTER TABLE "story" ADD CONSTRAINT "story_person_id_person_id_fk" FOREIGN KEY ("person_id") REFERENCES "public"."person"("id") ON DELETE no action ON UPDATE no action;
EXCEPTION
 WHEN duplicate_object THEN null;
END $$;