Php Laravel设置：Can'；安装独白

我只是尝试安装一个新的Laravel实例，如文档中所述（““Via Composer”）。从Composer获得此错误：

...
Writing lock file
Generating autoload files
PHP Fatal error:  Class 'Monolog\Logger' not found in ...\src\vendor\laravel\framework\src\Illuminate\Log\LogServiceProvider.php on line 23
{"error":{"type":"Symfony\\Component\\Debug\\Exception\\FatalErrorException","message":"Class 'Monolog\\Logger' not found","file":"...\\src\\vendor\\laravel\\framework\\src\\Illuminate\\Log\\LogServiceProvider.php","line":23}}Script php artisan clear-c
ompiled handling the post-install-cmd event returned with an error: PHP Fatal error:  Class 'Monolog\Logger' not found in ...\src\Illuminate\Log\LogServiceProvider.php on line 23

PHP Fatal error:  Class 'Monolog\Logger' not found in ...\src\Illuminate\Log\LogServiceProvider.php on line 23
{"error":{"type":"Symfony\\Component\\Debug\\Exception\\FatalErrorException","message":"Class 'Monolog\\Logger' not found","file":"...\\src\\vendor\\laravel\\framework\\src\\Illuminate\\Log\\LogServiceProvider.php","line":23}}Script php artisan optimiz
e handling the post-install-cmd event returned with an error: PHP Fatal error:  Class 'Monolog\Logger' not found in ...\src\Illuminate\Log\LogServiceProvider.php on line 23

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嗯，现在该怎么办？尝试将其发布到官方论坛上，但由于出现错误而无法实现（论坛基于Laravel…是的，这是因果报应！）。

解决方案：“composer dumpautoload-o”

您检查过吗？这个呢？谢谢，你的第二个链接很有帮助！干杯。如果你成功地修复了它，别忘了添加一个答案！啊，我落后了几分钟D