Laravelでテーブルの編集をしようと思ったのですが、どうやらcomposer require doctrine/dbalというコマンドを打たないとカラムの削除やら属性の変更ができないみたいなのですがうまくいきません。
下記のようなエラーメッセージが出ます。
unix
1The "https://packagist.org/packages.json" file could not be downloaded: SSL operation failed with code 1. OpenSSL Error messages: 2error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed 3Failed to enable crypto 4failed to open stream: operation failed 5https://packagist.org could not be fully loaded, package information was loaded from the local cache and may be out of date 6 7 8 [Composer\Downloader\TransportException] 9 The "http://packagist.org/p/doctrine/dbal%240a0685fc3137749c574e41c8c30d690 10 47798bea9ad9339895d366743aa7c1696.json" file could not be downloaded (HTTP/ 11 1.1 404 Not Found) 12 13 14require [--dev] [--prefer-source] [--prefer-dist] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--update-with-all-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] [<packages>]...
どうすればいいでしょうか?
よろしく御願いします。
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