解决方案1 ​​-将ext-zip添加到composer.json的必需部分:

Solution #1 - add ext-zip to your required section of composer.json:

{
    "require" : {
        "ext-zip": "*"
    }
}

解决方案2 -安装php-zip扩展名:

Solution #2 - install php-zip extension:

Windows:

在您的php.ini中取消注释此行

Uncomment this line in your php.ini

; extension = php_zip.dll

;extension=php_zip.dll

Linux:

sudo apt-get install php-zip

sudo apt-get install php-zip

或

sudo apt-get install php7.0-zip(确保输入了您的php版本，您可以通过执行php -v命令来检查您的版本)

sudo apt-get install php7.0-zip (make sure you typed YOUR php version, you can check your version by doing php -v command)

然后，您需要重新启动Web服务器.

Then, you need to restart your web server.

sudo服务apache2重新启动

sudo service apache2 restart