مشل در کار نصب پکیج احراز هویت

سلام موقعه نصب دو تا ارور دارم
ارور1:Your requirements could not be resolved to an installable set of packages.
ارور2:Installation failed, reverting ./composer.json and ./composer.lock to their original content.
بازدن دستور: composer require laravel/ui --dev
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