我想安装laravel 4.x，正如您所知，我必须使用composer
我尝试过：composer create-project laravel/laravel d:'xampp'htdocs'laravel
[InvalidArgumentException]
Could not find package laravel/laravel with stability stable.
create-project [-s|--stability="..."] [--prefer-source] [--prefer-dist] [--repository-url="..."] [--dev] [--no-dev] [--no-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [--keep-vcs][--no-install] [package] [directory] [version]
我已经从github repo下载了laravel，然后尝试了这个：composer install
这次我得到了：
Loading composer repositories with package information
Installing dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- The requested package laravel/framework could not be found in any version, there may be a typo in the package name.
Potential causes:
- A typo in the package name
- The package is not available in a stable-enough version according to your minimum-stability setting
see <https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> for more details.
Read <http://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.
我正在使用：
Apache 2.4.7
PHP 5.5.6
由xampp-win32-1.8.3-1-VC11安装在win8 64位上
请帮我
谢谢
您忘记添加"--preferred dist".所以在您的情况下，您必须使用：
composer create-project laravel/laravel --prefer-dist
以便使其发挥作用。因此，只需从d:''examplep''htdocs''laravel中删除所有文件，然后按照以下命令对cmd重试（我猜您使用的是Windows！）：
cd d:'xampp'htdocs'laravel
composer create-project laravel/laravel --prefer-dist
我认为这对你来说应该很好
最后我找到了答案，这一切都是关于composer和我的代理设置之间的问题，导致了这个问题。
我已经解释了composer自更新TransportException 中的问题和解决方案
在修复之后，composer完全安装了laravel 4，没有任何问题。
感谢大家
您安装composer时没有任何错误吗？我想我以前也遇到过同样的错误，问题出在作曲家的安装上。