Symfony 3.4：您是否忘记了“使用”功能？另一个命名空间的声明？ [英] Symfony 3.4: Did you forget a "use" statement for another namespace?
问题描述
我是Symfony的新手。我正在学习课程，创建新的Symfony项目后，他们使用此控制台创建新的捆绑包 php bin / console generate：bundle
I'm new to Symfony. I'm following a course, and after creating a new Symfony project, they use this console to create new bundle php bin/console generate:bundle
但是当我在控制台中执行此操作，然后使用 php bin / console server：run 时，会引发错误：
But when I do this in the console, and then use php bin/console server:run, it throws an error:
PHP致命错误：未捕获
Symfony\Component\Debug\Exception\ClassNotFoundException：尝试了
从名称空间 HomeBundle加载类 HomeBundle。
PHP Fatal error: Uncaught Symfony\Component\Debug\Exception\ClassNotFoundException: Attempted to load class "HomeBundle" from namespace "HomeBundle".
您是否忘记了另一个名称空间的 use语句？
在C：\xampp\htdocs\symfony_CRUD\app\AppKernel.php：19
Did you forget a "use" statement for another namespace?
in C:\xampp\htdocs\symfony_CRUD\app\AppKernel.php:19
经过大量时间的寻找解决方案之后，几乎我才发现 change composer.json解决方案，但是它已经在Symfony 3.4上修复了composer.json，所以我不知道下一步该怎么做。
After a lot of time searching for solution, almost i just found "change composer.json" solution, but it already fixed composer.json at Symfony 3.4 , so i don't know what to do next.
下面是我的composer.json
Here is my composer.json at the beginning
{
"name": "symfony/framework-standard-edition",
"license": "MIT",
"type": "project",
"description": "The \"Symfony Standard Edition\" distribution",
"autoload": {
"psr-4": {
"AppBundle\\": "src/AppBundle"
},
"classmap": [ "app/AppKernel.php", "app/AppCache.php" ]
},
"autoload-dev": {
"psr-4": { "Tests\\": "tests/" },
"files": [ "vendor/symfony/symfony/src/Symfony/Component/VarDumper/Resources/functions/dump.php" ]
},
"require": {
"php": ">=5.5.9",
"doctrine/doctrine-bundle": "^1.6",
"doctrine/orm": "^2.5",
"incenteev/composer-parameter-handler": "^2.0",
"sensio/distribution-bundle": "^5.0.19",
"sensio/framework-extra-bundle": "^5.0.0",
"symfony/monolog-bundle": "^3.1.0",
"symfony/polyfill-apcu": "^1.0",
"symfony/swiftmailer-bundle": "^2.6.4",
"symfony/symfony": "3.4.*",
"twig/twig": "^1.0||^2.0"
},
"require-dev": {
"sensio/generator-bundle": "^3.0",
"symfony/phpunit-bridge": "^3.0"
},
"scripts": {
"symfony-scripts": [
"Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::prepareDeploymentTarget"
],
"post-install-cmd": [
"@symfony-scripts"
],
"post-update-cmd": [
"@symfony-scripts"
]
},
"config": {
"platform": {
"php": "5.5.9"
},
"sort-packages": true
},
"extra": {
"symfony-app-dir": "app",
"symfony-bin-dir": "bin",
"symfony-var-dir": "var",
"symfony-web-dir": "web",
"symfony-tests-dir": "tests",
"symfony-assets-install": "relative",
"incenteev-parameters": {
"file": "app/config/parameters.yml"
},
"branch-alias": {
"dev-master": "3.4-dev"
}
}
}
AppKernel.php
AppKernel.php
<?php
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\HttpKernel\Kernel;
use Symfony\Component\Config\Loader\LoaderInterface;
class AppKernel extends Kernel
{
public function registerBundles()
{
$bundles = [
new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
new Symfony\Bundle\SecurityBundle\SecurityBundle(),
new Symfony\Bundle\TwigBundle\TwigBundle(),
new Symfony\Bundle\MonologBundle\MonologBundle(),
new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
new Doctrine\Bundle\DoctrineBundle\DoctrineBundle(),
new Sensio\Bundle\FrameworkExtraBundle\SensioFrameworkExtraBundle(),
new HomeBundle\HomeBundle(),
];
if (in_array($this->getEnvironment(), ['dev', 'test'], true)) {
$bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
$bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
$bundles[] = new Sensio\Bundle\DistributionBundle\SensioDistributionBundle();
if ('dev' === $this->getEnvironment()) {
$bundles[] = new Sensio\Bundle\GeneratorBundle\SensioGeneratorBundle();
$bundles[] = new Symfony\Bundle\WebServerBundle\WebServerBundle();
}
}
return $bundles;
}
public function getRootDir()
{
return __DIR__;
}
public function getCacheDir()
{
return dirname(__DIR__).'/var/cache/'.$this->getEnvironment();
}
public function getLogDir()
{
return dirname(__DIR__).'/var/logs';
}
public function registerContainerConfiguration(LoaderInterface $loader)
{
$loader->load(function (ContainerBuilder $container) {
$container->setParameter('container.autowiring.strict_mode', true);
$container->setParameter('container.dumper.inline_class_loader', true);
$container->addObjectResource($this);
});
$loader->load($this->getRootDir().'/config/config_'.$this->getEnvironment().'.yml');
}
}
我的代码树：
My code tree:
请帮忙，谢谢：）
推荐答案
好，现在我知道了，您应该在composer.json中，从以下位置更改它：
Ok I see now, you should change this in your composer.json, from :
"autoload": {
"psr-4": {
"AppBundle\\": "src/AppBundle"
},
"classmap": [ "app/AppKernel.php", "app/AppCache.php" ]
},
至
"autoload": {
"psr-4": {
"": "src/"
},
"classmap": [ "app/AppKernel.php", "app/AppCache.php" ]
},
就像您添加到作曲家自动加载器（ vendor / autoload.php ）项目src /中的所有php类
Like this you add to the composer autoloader (vendor/autoload.php) all php class inside src/ of your project
此后，您需要重新创建自动加载文件：
After this you need to recreate your autoload file:
composer dump-autoload
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