Symfony 3.0 安装

Question

我是Symfony的新手，从上个月开始一直在使用以下命令在Ubuntu终端上安装新的Symfony项目：

Am new to symfony and from last month am continuously installing new symfony project using following command on ubuntu from the terminal

# Linux, Mac OS X
$ symfony new my_project_name

直到今天一切都运行得很完美，但是我刚刚检查了新版本的发布，现在它开始给我以下错误

Downloading Symfony...

    4.93 MB/4.93 MB ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓  100%

 Preparing project...

PHP Warning:  require(/var/www/projectname/app/SymfonyRequirements.php): failed to open stream: No such file or directory in phar:///usr/local/bin/symfony/src/Symfony/Installer/DownloadCommand.php on line 265
PHP Stack trace:
PHP   1. {main}() /usr/local/bin/symfony:0
PHP   2. require() /usr/local/bin/symfony:10
PHP   3. Symfony\Component\Console\Application->run() phar:///usr/local/bin/symfony/symfony:35
PHP   4. Symfony\Component\Console\Application->doRun() phar:///usr/local/bin/symfony/vendor/symfony/console/Application.php:126
PHP   5. Symfony\Component\Console\Application->doRunCommand() phar:///usr/local/bin/symfony/vendor/symfony/console/Application.php:195
PHP   6. Symfony\Component\Console\Command\Command->run() phar:///usr/local/bin/symfony/vendor/symfony/console/Application.php:878
PHP   7. Symfony\Installer\NewCommand->execute() phar:///usr/local/bin/symfony/vendor/symfony/console/Command/Command.php:259
PHP   8. Symfony\Installer\DownloadCommand->checkSymfonyRequirements() phar:///usr/local/bin/symfony/src/Symfony/Installer/NewCommand.php:65
PHP Fatal error:  require(): Failed opening required '/var/www/projectname/app/SymfonyRequirements.php' (include_path='.:/usr/share/php:/usr/share/pear') in phar:///usr/local/bin/symfony/src/Symfony/Installer/DownloadCommand.php on line 265
PHP Stack trace:
PHP   1. {main}() /usr/local/bin/symfony:0
PHP   2. require() /usr/local/bin/symfony:10
PHP   3. Symfony\Component\Console\Application->run() phar:///usr/local/bin/symfony/symfony:35
PHP   4. Symfony\Component\Console\Application->doRun() phar:///usr/local/bin/symfony/vendor/symfony/console/Application.php:126
PHP   5. Symfony\Component\Console\Application->doRunCommand() phar:///usr/local/bin/symfony/vendor/symfony/console/Application.php:195
PHP   6. Symfony\Component\Console\Command\Command->run() phar:///usr/local/bin/symfony/vendor/symfony/console/Application.php:878
PHP   7. Symfony\Installer\NewCommand->execute() phar:///usr/local/bin/symfony/vendor/symfony/console/Command/Command.php:259
PHP   8. Symfony\Installer\DownloadCommand->checkSymfonyRequirements() phar:///usr/local/bin/symfony/src/Symfony/Installer/NewCommand.php:65

我甚至检查了Symfony在usr/local/bin/symfony位置，而它就在那里。

- Sarang

Answer 1

您需要指定要安装的版本已经是一个解决的问题。就像这里和这里所描述的，您需要：

1. 更新您的安装程序

>symfony self-update

根据您的安装方式，您可能需要使用sudo执行此操作：

>sudo symfony self-update

指定版本：

>symfony new my_project_name 3.0

希望这能有所帮助。

更新

在Symfony安装程序错误的正确解决方案下，现在3.0是默认版本。否则，您可以按照以下方式指定完整版本（包括次要和主要版本）：

>symfony new my_project_name 3.0.0

- Matteo