为什么我的 composer 的 autoload.php 不起作用？
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Why my autoload.php of composer doesn't work?
提问by Matteo Calò
I have a project, I use Composer and i import many thing by it... i require the autoload.php in my index (the root of project) and istead Slim, Mongo, Twig work very well. But when I call a class of Respect/Validation it doens't work; if I simply use Respect/Validation the error is:
我有一个项目，我使用 Composer 并通过它导入了很多东西......我需要在我的索引（项目的根目录）中使用 autoload.php 并且 istead Slim、Mongo、Twig 工作得很好。但是当我调用一类尊重/验证时，它不起作用；如果我只是使用尊重/验证，错误是：
Class 'Respect\Validation\Validator' not found in (path of file when i need it).
Class 'Respect\Validation\Validator' not found in (path of file when i need it).
if I try to require also here the autoload.php the errors are:
如果我尝试在这里也要求 autoload.php 错误是：
**Warning**: require_once(vendor/autoload.php): failed to open stream: No such file or directory in (path of file when i need it)
**Warning**: require_once(vendor/autoload.php): failed to open stream: No such file or directory in (path of file when i need it)
**Fatal error**: require_once(): Failed opening required 'vendor/autoload.php' (include_path='.;C:\xampp\php\PEAR') in (path of file when i need it)
**Fatal error**: require_once(): Failed opening required 'vendor/autoload.php' (include_path='.;C:\xampp\php\PEAR') in (path of file when i need it)
采纳答案by Davide Pastore
If you are using a file (file.php) in a particular directory like this:
如果您file.php在特定目录中使用文件 ( )，如下所示：
/app/controller/validation
and your vendor directory is in the base path of the project, you need to include the relative path to vendor directory:
并且您的供应商目录位于项目的基本路径中，您需要包含供应商目录的相对路径：
../../../vendor/autoload.php
回答by ciruvan
Try using php composer dump-autoload. It may fix that problem.
尝试使用php composer dump-autoload. 它可能会解决这个问题。
回答by Abhishek Dujari
I did this.
i checked the file and permissions as always but everything looks ok. Then I open autoload.php and see ... oh! we have __DIR__ofcourse.
我这样做了。我一如既往地检查了文件和权限，但一切正常。然后我打开 autoload.php 并查看...哦！我们当然有__DIR__。
I was doing this
我在做这个
require '../../vendor.autoload.php';
require '../../vendor.autoload.php';
Changed to
变成
require __DIR__.'../../vendor.autoload.php';
require __DIR__.'../../vendor.autoload.php';
Not politically correct but got me by the frustrating waste of time for the moment.
上不正确，但让我感到沮丧的是暂时浪费了时间。
ofcourse there are better alternatives to __DIR__like using a BASE Path etc. But this worked for me.
当然，还有更好的替代方案，__DIR__比如使用 BASE Path 等。但这对我有用。
回答by jaip
I had the same issue with xampp. I installed composer and used:
我对 xampp 有同样的问题。我安装了 composer 并使用了：
composer create-project --stability=dev --prefer-dist yiisoft/yii2-app-basic D:\xampp\htdocs\newapp
My issue solved now.
我的问题现在解决了。
回答by jaip
I had the same problem and i solved it by using the last version of laravel, just try this code to create your project:
我遇到了同样的问题，我通过使用 Laravel 的最新版本解决了它，只需尝试使用以下代码来创建您的项目：
composer create-project laravel/laravel exampleProject --prefer-dist
composer create-project laravel/laravel exampleProject --prefer-dist
this always uses the last version.
这总是使用最后一个版本。
回答by Francesco Tanganelli
I solved simple re-run composer update from the project Root. (my case was on Magento2, but the error and the path are the same)
我从项目根解决了简单的重新运行作曲家更新。（我的情况是在Magento2上，但错误和路径是一样的）
回答by atswann
In my case i simple forgot to change my working directory before running the command composer require cboden/ratchetin cmd this fixed it cd c:\path to project\then composer require cboden/ratchet
在我的情况下，我composer require cboden/ratchet在 cmd 中运行命令之前忘记更改我的工作目录，cd c:\path to project\然后修复它composer require cboden/ratchet
回答by Sayed Abolfazl Fatemi
I solve the problem without any installor updateof composerand just by moving require_oncefrom sub class to main page.
我在没有任何install或updateof 的情况下解决了问题composer，只需require_once从子类移动到main page.
require_once 'vendor/autoload.php';
