PHP 致命错误：未捕获错误：Class 'Normalizer' not found in /usr/share/php/Symfony/Component/Console/Helper/Helper.ZE1BFD762321E409963CEE4AC0B6ECZ8

Question

我正在尝试在从 git 克隆的 Laravel 项目中进行作曲家安装。

但是我遇到了一些错误。

我解决的第一个问题是：

- phpunit/phpunit[8.5.0, ..., 8.5.x-dev] require ext-dom * -> it is missing from your system. Install or enable PHP's dom extension.

通过做：

sudo apt install php7-4-xml php7.4-mbstring

但是现在当我进行composer update或composer install时，我得到了这个答案：

PHP Fatal error: Uncaught Error: Class 'Normalizer' not found in /usr/share/php/Symfony/Component/Console/Helper/Helper.php:129

Stack trace:

#0 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(516): Symfony\Component\Console\Helper\Helper::strlenWithoutDecoration()
#1 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(576): Symfony\Component\Console\Helper\ProgressBar::Symfony\Component\Console\Helper\{closure}()
#2 [internal function]: Symfony\Component\Console\Helper\ProgressBar->Symfony\Component\Console\Helper\{closure}()
#3 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(589): preg_replace_callback()
#4 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(414): Symfony\Component\Console\Helper\ProgressBar->buildLine()
#5 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(323): Symfony\Component\Console\Helper\ProgressBar->display()
#6 /usr/share/php/Composer/Util/Loop.php(85): Symfony\Component\Console\Helper\ProgressBar->start()
#7 /usr/share/php/Compos in /usr/share/php/Symfony/Component/Console/Helper/Helper.php on line 129

Fatal error: Uncaught Error: Class 'Normalizer' not found in /usr/share/php/Symfony/Component/Console/Helper/Helper.php:129
Stack trace:
#0 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(516): Symfony\Component\Console\Helper\Helper::strlenWithoutDecoration()
#1 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(576): Symfony\Component\Console\Helper\ProgressBar::Symfony\Component\Console\Helper\{closure}()
#2 [internal function]: Symfony\Component\Console\Helper\ProgressBar->Symfony\Component\Console\Helper\{closure}()
#3 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(589): preg_replace_callback()
#4 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(414): Symfony\Component\Console\Helper\ProgressBar->buildLine()
#5 /usr/share/php/Symfony/Component/Console/Helper/ProgressBar.php(323): Symfony\Component\Console\Helper\ProgressBar->display()
#6 /usr/share/php/Composer/Util/Loop.php(85): Symfony\Component\Console\Helper\ProgressBar->start()
#7 /usr/share/php/Compos in /usr/share/php/Symfony/Component/Console/Helper/Helper.php on line 129

Answer 1

它需要安装 php-intl

Normalizer 类带有 php 国际化扩展 (php-intl)。 必须安装它才能使用 Normalizer 类

在Debian上我做了

sudo apt install php-intl

它应该可以解决问题

Answer 2

首先你可以尝试安装 php-intl package

sudo apt install php-intl

如果还是不行，可以一一运行以下命令将php版本升级到8.1。 （对于基于 Debian 的操作系统）：

sudo apt update
sudo apt upgrade
sudo apt install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt install php8.1 php8.1-cli php8.1-fpm php8.1-apcu php8.1-opcache php8.1-common php8.1-curl php8.1-zip php8.1-mcrypt php8.1-mysql php8.1-mbstring php8.1-xml php8.1-gd php8.1-imagick php8.1-xmlrpc php8.1-maxminddb
sudo update-alternatives --set php /usr/bin/php8.1

然后查看 php 版本：

php --version

这帮助我修复了错误。

Answer 3

我遇到了这个问题并设法通过卸载作曲家来解决它，然后从正确的存储库中正确地重新安装作曲家。 我正在使用sudo-apt get composer ，这就是问题所在。

Answer 4

要解决它，您需要安装更新版本的 php 8.1