解决laravel8无法安装验证码问题,更新composer.lock 文件

在使用laravel8框架时，报如下错误

https://mirrors.aliyun.com/composer could not be fully loaded (The "https://mirrors.aliyun.com/composer/packages.json" file could not be downloaded (HTTP/2 429 )), package information was loaded from the local cache and may be out o

f date                                                                                                      

 [Composer\Downloader\TransportException]                                                                   

The "https://mirrors.aliyun.com/composer/p2/mews/captcha.json" file could not be downloaded (HTTP/2 429 )

问题原因：出现这个问题原因是因为我们一开始项目之前已通过其他源安装。

解决方法：需要更新 composer.lock 文件，执行命令：

composer update –lock

重新执行安装验证码

composer require mews/captcha 3.2

可以看到安装成功了。