エラー内容 Laravelのマイグレーションでtimestamp型のカラムに変更を加えようとすると以下のようなエラーが出る。 Unknown column type "timestamp" requested. Any Doctrine type that you use has to be registered with \ Doctrine\DBAL\Types\Type::addType(). You can get a list of all the known types with \Doctrine\DBAL\Ty pes\Type::getTypesMap(). If this error occurs during database introspection then you might have forgo tten to register all database t
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