php - CakePHP 3 Composer 安装错误

Question

我正在尝试创建一个项目，如官方 Bookmarker Tutorial 所示使用以下命令:

composer create-project --prefer-dist cakephp/app bookmarker

然后我看到以下错误:

[RuntimeException]
Could not load package cakephp/migrations in http://packagist.org: [UnexpectedValueException] Could not parse version constraint >=0.4.2 <1.0: Invalid version string "0.4.2 <1.0"

[UnexpectedValueException]
Could not parse version constraint >=0.4.2 <1.0: Invalid version string "0.4.2 <1.0"

然后我运行 bin/cake server 并看到以下错误:

PHP Warning: require(/Library/WebServer/Documents/bookmarker/vendor/autoload.php): failed to open stream: No such file or directory in /Library/WebServer/Documents/bookmarker/config/bootstrap.php on line 23 PHP Stack trace: PHP 1. {main}() /Library/WebServer/Documents/bookmarker/bin/cake.php:0 PHP 2. include() /Library/WebServer/Documents/bookmarker/bin/cake.php:31

Warning: require(/Library/WebServer/Documents/bookmarker/vendor/autoload.php): failed to open stream: No such file or directory in /Library/WebServer/Documents/bookmarker/config/bootstrap.php on line 23

Call Stack: 0.0010 227136 1. {main}() /Library/WebServer/Documents/bookmarker/bin/cake.php:0 0.0021 237624 2. include('/Library/WebServer/Documents/bookmarker/config/bootstrap.php') /Library/WebServer/Documents/bookmarker/bin/cake.php:31

PHP Fatal error: require(): Failed opening required '/Library/WebServer/Documents/bookmarker/vendor/autoload.php' (include_path='.:/usr/local/Cellar/php55/5.5.21/lib/php') in /Library/WebServer/Documents/bookmarker/config/bootstrap.php on line 23 PHP Stack trace: PHP 1. {main}() /Library/WebServer/Documents/bookmarker/bin/cake.php:0 PHP 2. include() /Library/WebServer/Documents/bookmarker/bin/cake.php:31

Fatal error: require(): Failed opening required '/Library/WebServer/Documents/bookmarker/vendor/autoload.php' (include_path='.:/usr/local/Cellar/php55/5.5.21/lib/php') in /Library/WebServer/Documents/bookmarker/config/bootstrap.php on line 23

Call Stack: 0.0010 227136 1. {main}() /Library/WebServer/Documents/bookmarker/bin/cake.php:0 0.0021 237624 2. include('/Library/WebServer/Documents/bookmarker/config/bootstrap.php') /Library/WebServer/Documents/bookmarker/bin/cake.php:31

我的系统是 OS X Yosemite 10.10.2，我的 PHP 版本是 5.5.21 并且启用了国际扩展。

有没有人遇到过这个问题或类似问题？有什么解决办法吗？

Answer 1

首先运行以下命令(如果全局安装了 composer，您可能需要在前面加上 sudo)

composer self-update 

再一次

composer create-project --prefer-dist cakephp/app bookmarker