blocks|key|1893991|text|使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1893992|doctrine:generate:entity|code-block|syntax|javascript|1893993|您将创建新的实体。|1893994|当你用手工添加一些属性时|1893995|doctrine:generate:entities+AcmeDemoBundle:User|1893996|您将创建AcmeDemoBundle的实体用户的所有访问器(getter和setter|1893997|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

With

<pre><code>doctrine:generate:entity
</code></pre>

you'll create new entity.

And when you add some attributes by hand with

<pre><code>doctrine:generate:entities AcmeDemoBundle:User
</code></pre>

you'll create all accessor (getter and setter) of the entity User of AcmeDemoBundle

blocks|key|3319212|text|如果您的项目(仅限？)实体的命名空间不正确。如果您运行以下命令|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3319213|$+php+app/console+doctrine:generate:entities+MyBundle|code-block|syntax|javascript|3319214|它会产生错误|3319215|3319216|+RuntimeException|blockquote|3319217|3319218|捆绑包"MyBundle“不包含任何映射实体。|3319219|3319220|检查更具体的命令...|3319221|$+php+app/console+doctrine:generate:entities+MyBundle:MyEntity|3319222|看看你是否得到了这个错误：|3319223|3319224|+RuntimeException|3319225|3319226|autoloader要求类"MyBundle\Entity\MyEntity“在文件"/path/+to+/MyBundle/Entity/MyEntity.php”中定义。找到了文件，但类不在其中，类名或命名空间可能有拼写错误。|3319227|3319228|如果是这样，那么错误就不言而喻了(希望如此)，并且名称空间/类名称需要更正。希望这对某些人有帮助。|3319229|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|18|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|19|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1B|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|1D|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1F|8|@]|9|@]|A|$]]|$1|S|3|T|5|D|7|1G|8|@]|9|@]|A|$E|F]]|$1|U|3|V|5|6|7|1H|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]|$1|X|3|Y|5|L|7|1J|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]|$1|10|3|11|5|6|7|1L|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]|$1|13|3|14|5|6|7|1N|8|@]|9|@]|A|$]]|$1|15|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]]|16|$]]

This error will also come up if your projects (only?) Entity is namespaced incorrectly. If you run the command

<pre><code>$ php app/console doctrine:generate:entities MyBundle
</code></pre>

and it produces the error

<blockquote>
 [RuntimeException] 
 Bundle "MyBundle" does not contain any mapped entities.
</blockquote>

Check the more specific command....

<pre><code>$ php app/console doctrine:generate:entities MyBundle:MyEntity
</code></pre>

And see if you get the error:

<blockquote>
 [RuntimeException] 
 The autoloader expected class "MyBundle\Entity\MyEntity"
 to be defined in file "/path/to/MyBundle/Entity/MyEntity.php".
 The file was found but the class was not in it, the class name or
 namespace probably has a typo.
</blockquote>

If so, well then, the error speaks for itself (hopefully) and the namespace/class name needs to be corrected. Hopefully that is helpful to someone.

blocks|key|3319260|text|解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3319261|更新symfony文件：|3319262|composer+update|code-block|syntax|javascript|3319263|然后创建实体|3319264|php+bin/console+doctrine:generate:entities+BackendBundle|3319265|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

The solution: 

Update symfony files:

<pre><code>composer update
</code></pre>

then create entities

<pre><code>php bin/console doctrine:generate:entities BackendBundle
</code></pre>

blocks|key|1894049|text|检查PHP开始标记和(可选)结束标记|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1894050|<?php++|code-block|syntax|javascript|1894051|和|1894052|?>|1894053|在你的文件中是正确的。|1894054|当您从http://symfony.com/doc/current/book/doctrine.html上的教程复制粘贴时，它们不包括在内|offset|length|1894055|我被同样的问题卡住了。看了这篇文章后，我开始想知道为什么语法突出显示被破坏了，并发现开始和结束标记丢失了。当包含标签时，错误消失。|1894056|entityMap|0|LINK|mutability|MUTABLE|url|http://symfony.com/doc/current/book/doctrine.html^0|0|0|0|0|0|3|1D|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|15|8|@]|9|@$O|16|P|17|1|18]]|A|$]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

Check that the PHP opening and (optional) closing tags 

<pre><code>&lt;?php 
</code></pre>

and

<pre><code>?&gt;
</code></pre>

are correct in your file.

They are not included when you copy paste from the tutorial at
<a href="http://symfony.com/doc/current/book/doctrine.html" rel="nofollow">http://symfony.com/doc/current/book/doctrine.html</a>

I was stuck at the same problem. After looking at this post I started wondering why the syntax highlighting was broken and discovered that the opening and closing tags were missing. The error disappeared when the tags were included.

blocks|key|1682045|text|在帐簿中，http://symfony.com/doc/current/book/doctrine.html实体产品已手动创建。你给Product.php写了代码。所有关于实体字段的信息都包含注释中的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1682046|但实体类别是使用创建的|1682047|php+app/console+doctrine:generate:entity+--entity="AcmeStoreBundle:Category"+--fields="name:string(255)"|CODE|1682048|Automatically+entity+Caterory.php+不包含批注。Symfony将信息存储在"Acme\StoreBundle\Resources\config\doctrine\Category.orm.yml".中这就是为什么php+app/console+doctrine:mapping:info说你只有一个映射的实体类别。|1682049|解算|1682050|您可以使用doctrine:generate:entity生成产品实体|1682051|或|1682052|手动将有关产品实体的信息添加到"Acme\StoreBundle\Resources\config\doctrine\Category.orm.yml“|1682053|1682054|在Category.php中删除"Acme\StoreBundle\Resources\config\doctrine\Category.orm.yml“并使用注释描述类别实体|1682055|entityMap|0|LINK|mutability|MUTABLE|url|http://symfony.com/doc/current/book/doctrine.html^0|2S|1|5|1D|0|0|0|B|0|0|2W|0|2W|0|0|4T|3E|11|0|0|2|0|0|Z|5|O|0|0|1|0|0|24|0|0|1|0|0|2G|0^^$0|@$1|2|3|4|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@$9|18|A|19|1|1A]]|E|$]]|$1|F|3|G|5|6|7|1B|8|@$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1E|8|@$9|1F|A|1G|B|C]|$9|1H|A|1I|B|J]]|D|@]|E|$]]|$1|K|3|L|5|6|7|1J|8|@$9|1K|A|1L|B|C]|$9|1M|A|1N|B|J]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1O|8|@$9|1P|A|1Q|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1R|8|@$9|1S|A|1T|B|C]|$9|1U|A|1V|B|J]]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1W|8|@$9|1X|A|1Y|B|C]]|D|@]|E|$]]|$1|S|3|T|5|6|7|1Z|8|@$9|20|A|21|B|C]]|D|@]|E|$]]|$1|U|3|R|5|6|7|22|8|@$9|23|A|24|B|C]]|D|@]|E|$]]|$1|V|3|W|5|6|7|25|8|@$9|26|A|27|B|C]]|D|@]|E|$]]|$1|X|3|-4|5|6|7|28|8|@]|D|@]|E|$]]]|Y|$Z|$5|10|11|12|E|$13|14]]]]

In book <a href="http://symfony.com/doc/current/book/doctrine.html" rel="nofollow">http://symfony.com/doc/current/book/doctrine.html</a> entity Porduct has been manually created. You wrote code to Product.php. All information about entity fields contains in annotations. 
But entity Category has been created with 

<code>php app/console doctrine:generate:entity --entity="AcmeStoreBundle:Category" --fields="name:string(255)"</code> 

Automatically generated entity Caterory.php doesn't contains annotations. Symfony stored information in "Acme\StoreBundle\Resources\config\doctrine\Category.orm.yml".
That's why <code>php app/console doctrine:mapping:info</code> says that you have only 1 mapped entity - Category. 

Solving 
You may generate Product entity with <code>doctrine:generate:entity</code> 
or 
Manually add information about Product entity to "Acme\StoreBundle\Resources\config\doctrine\Category.orm.yml" 
or 
Delete "Acme\StoreBundle\Resources\config\doctrine\Category.orm.yml" and describe Category entity with annotations in Category.php

blocks|key|1894098|text|我个人有这个错误，因为我缺少文件夹/目录"Entity“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1894099|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I personally had the error because I was missing the folder/directory "Entity".

blocks|key|1682013|text|这两件事中的一件可能是问题，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1682014|1682015|确保在顶部有一条use语句，即|ordered-list-item|1682016|1682017|use+Acme\StoreBundle\Entity\Product;|offset|length|style|CODE|1682018|它不包括在示例中，如果实体位于不同的名称空间中，则它们仅显示指定目标实体始终指定完整名称空间的use+Doctrine\Common\Collections\ArrayCollection;|1682019|When。示例：|unordered-list-item|1682020|1682021|@ORM\OneToMany(targetEntity="Acme\StoreBundle\Entity\Product",+mappedBy="category")|1682022|而不是：|1682023|@ORM\OneToMany(targetEntity="Product",+mappedBy="category")|1682024|第二种方法仅在两个实体位于相同的命名空间中，并且该实体已由类上方的use语句调用时才起作用。|1682025|entityMap^0|0|0|0|0|0|10|0|1B|1C|0|0|0|0|2B|0|0|0|1N|0|X|3|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|14|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|15|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|16|8|@$I|17|J|18|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|19|8|@$I|1A|J|1B|K|L]]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1C|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1E|8|@$I|1F|J|1G|K|L]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1H|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1I|8|@$I|1J|J|1K|K|L]]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1L|8|@$I|1M|J|1N|K|L]]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]]|11|$]]

One of the two things may be the problem,

<ol>
<li>make sure you have a use statement at the top, that is

<code>use Acme\StoreBundle\Entity\Product;</code>

It is not included in the example, they only displayed 
<code>use Doctrine\Common\Collections\ArrayCollection;</code></li>
<li>When specifying target entity always specify full namespace if the entities are in different name spaces.
 example:

<code>@ORM\OneToMany(targetEntity="Acme\StoreBundle\Entity\Product", mappedBy="category")</code>

instead of:

<code>@ORM\OneToMany(targetEntity="Product", mappedBy="category")</code>

The second one only works if the two entities are in same namespace and that entity has been called by <code>use</code> statement above the class.</li>
</ol>

I am following the book and on the page <a href="http://symfony.com/doc/current/book/doctrine.html" rel="noreferrer">http://symfony.com/doc/current/book/doctrine.html</a>

While following the book I am trying to work on relationship of product and category table and doctrine generate command is giving me following error.

<pre><code>php app/console doctrine:generate:entities Acme
Generating entities for namespace "Acme"



 [RuntimeException] 
 Namespace "Acme" does not contain any mapped entities. 



doctrine:generate:entities [--path="..."] [--no-backup] name
</code></pre>

Thx

symfony 2 : Namespace "Acme" does not contain any mapped entities

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我正在阅读这本书，并且在页面上在阅读本书的过程中，我尝试处理产品与类别表和规则的关系，生成命令给我以下错误。php app/console doctrine:generate:entities AcmeGenerating entities for namespace "Acme"  [RuntimeException]                                       

问symfony 2:命名空间"Acme“不包含任何映射实体
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