PHP
Laravel 执行composer intsall报 Class 'Composer\InstalledVersions' not found
Laravel 执行composer intsall报 Class 'Composer\InstalledVersions' not found
最近在迁移项目到另一台服务器上，composer install安装扩展时，报以下错误
Laravel 执行composer intsall报 Class 'Composer\InstalledVersions' not found at vendor/maatwebsite/excel/src/Cache/CacheManager.php:43
后面发现出现这个错误是因为composer版本过低导致，直接执行以下命令行进行升级
composer self-update
然后重新执行composer install进行扩展安装，便成功安装扩展。
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