在我的 Laravel 9 项目中运行 composer update 后，我遇到了以下错误消息：
Writing lock file Installing dependencies from lock file (including require-dev) Package operations: 0 installs, 1 update, 1 removal - Downloading fruitcake/laravel-cors (v3.0.0) - Removing asm89/stack-cors (v2.1.1) - Upgrading fruitcake/laravel-cors (v2.2.0 => v3.0.0): Extracting archive 77 package suggestions were added by new dependencies, use `composer suggest` to see details. Generating optimized autoload files > Illuminate\Foundation\ComposerScripts::postAutoloadDump > @php artisan package:discover --ansi In Finder.php line 588: syntax error, unexpected token ")" Script @php artisan package:discover --ansi handling the post-autoload-dump event returned with error code 1
似乎更新已完成，但出了点问题，现在在控制台中我收到 syntax 错误，意外标记“)” Finder.php 上的错误：588。
我检查了这个文件，它看起来是正确的。
当我在浏览器中打开项目时，出现此错误：
Fatal error: Uncaught RuntimeException: A facade root has not been set. in /var/www/html/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php:334
Stack trace:
#0 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/RegisterErrorViewPaths.php(18): Illuminate\Support\Facades\Facade::__callStatic('replaceNamespac...', Array)
#1 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php(626): Illuminate\Foundation\Exceptions\RegisterErrorViewPaths->__invoke()
#2 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php(607): Illuminate\Foundation\Exceptions\Handler->registerErrorViewPaths()
#3 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php(538): Illuminate\Foundation\Exceptions\Handler->renderHttpException(Object(Symfony\Component\HttpKernel\Exception\HttpException))
#4 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php(444): Illuminate\Foundation\Exceptions\Handler->prepareResponse(Object(Illuminate\Http\Request), Object(Symfony\Component\HttpKernel\Exception\HttpException))
#5 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php(364): Illuminate\Foundation\Exceptions\Handler->renderExceptionResponse(Object(Illuminate\Http\Request), Object(ParseError))
#6 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(427): Illuminate\Foundation\Exceptions\Handler->render(Object(Illuminate\Http\Request), Object(ParseError))
#7 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(115): Illuminate\Foundation\Http\Kernel->renderException(Object(Illuminate\Http\Request), Object(ParseError))
#8 /var/www/html/public/index.php(52): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#9 {main}
thrown in /var/www/html/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php on line 334
我也清除了 bootstrap/cahce/ 和 storage/framework/cache/data/、storage/framework/sessions/、storage/framework/views/ 文件夹中的所有缓存。
我使用 PHP 版本 8.0.16。
Composer 版本 2.0.12 2021-04-01 10:14:59。
知道如何解决这个问题吗？
要继续使用 php 8.0，请将这些条目添加到您的composer.json
"require": { ... "symfony/console": "6.0.*", "symfony/error-handler": "6.0.*", "symfony/finder": "6.0.*", "symfony/http-foundation": "6.0.*", "symfony/http-kernel": "6.0.*", "symfony/mailer": "6.0.*", "symfony/mime": "6.0.*", "symfony/process": "6.0.*", "symfony/routing": "6.0.*", "symfony/var-dumper": "6.0.*", "symfony/event-dispatcher": "6.0.*", "symfony/string": "6.0.*", "symfony/translation": "6.0.*", "symfony/translation-contracts": "3.0.*", "symfony/service-contracts": "3.0.*", "symfony/event-dispatcher-contracts": "3.0.*", "symfony/deprecation-contracts": "3.0.*", ... }为我使用 php 8.0 和 Laravel 9。
我找到了一个解决方案：
docker pullcomposer以升级最新版本的composer（从2.0到2.2）composer update