blocks|key|272261|text|我会提出以下建议：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|272262|272263|(很可能)您还没有安装您的标记库的依赖项之一。检查current_tags.py模块内部的导入。|ordered-list-item|offset|length|style|CODE|272264|确保在INSTALLED_APPS.|272265|Make下的settings.py中注册了包含标签库的应用程序，确保您可以成功导入标签库。|272266|272267|来自app.templatetags导入current_tags的python+manage.py外壳程序>>>|272268|这可以归结为下面的链接所建议的，即错误本身倾向于误导您，使您不知道它从哪里寻找模板。它在导入时静默地忽略错误，这意味着current_tags.py本身可能存在语法错误或引发ImportError.的其他原因|272269|如果所有其他方法都失败了，请检查此链接：http://www.b-list.org/weblog/2007/dec/04/magic-tags/|272270|entityMap|0|LINK|mutability|MUTABLE|url|http://www.b-list.org/weblog/2007/dec/04/magic-tags/^0|0|0|P|F|0|3|E|0|6|B|0|0|0|1N|F|0|K|1G|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|14|8|@$F|15|G|16|H|I]]|9|@]|A|$]]|$1|J|3|K|5|E|7|17|8|@$F|18|G|19|H|I]]|9|@]|A|$]]|$1|L|3|M|5|E|7|1A|8|@$F|1B|G|1C|H|I]]|9|@]|A|$]]|$1|N|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1E|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1F|8|@$F|1G|G|1H|H|I]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1I|8|@]|9|@$F|1J|G|1K|1|1L]]|A|$]]|$1|U|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

I would suggest the following:

<ol>
<li>(Most likely) You haven't installed one of the dependencies of your tag library. Check the imports inside the <code>current_tags.py</code> module.</li>
<li>Make sure the application that includes the tag library is registered in <code>settings.py</code> under <code>INSTALLED_APPS</code>.</li>
<li>Make sure that you can successfully import the tag library.

<pre><code>python manage.py shell
&gt;&gt;&gt; from app.templatetags import current_tags
</code></pre>

This boils down what the following link recommends, which is that the error itself tends to mislead you about where it's looking for a template from. It silently ignores errors on import, which means <code>current_tags.py</code> itself might have a syntax error or another reason why it raises ImportError.</li>
</ol>

If everything else fails, check this link:
<a href="http://www.b-list.org/weblog/2007/dec/04/magic-tags/">http://www.b-list.org/weblog/2007/dec/04/magic-tags/</a>

blocks|key|2977636|text|我遇到了这个问题，并通过在appname/templatetags/目录中添加一个空的__init__.py文件来修复它。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2977637|entityMap^0|17|B|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I had this problem and fixed it by adding a blank <code>__init__.py</code> file in my appname/templatetags/ directory.

blocks|key|3191496|text|可能性有很多：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3191497|您尚未在模板标签文件中重置您的应用程序开发循环依赖项server.|3191498|You+。|unordered-list-item|offset|length|style|BOLD|3191499|
|3191500|某事(目录、文件夹、加载中的模板名称等)。<代码>H212<代码>H113您忘记了将应用程序添加到模板中|3191501|3191502|entityMap^0|0|0|4|1|0|0|0|1G|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|T|8|@$G|U|H|V|I|J]]|9|@]|A|$]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|X|8|@$G|Y|H|Z|I|J]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|Q|$]]

Possibilities are many:

<ol>
<li>You haven't reset your dev server.</li>
<li>You have dependency loop in templatetag file.</li>
<li>You misspelled something (directory, folder, template name in 'load', etc.).</li>
<li>You forgot about adding the app to INSTALLED_APPS.</li>
</ol>

blocks|key|3191690|text|重启服务器已经为我解决了这个问题。他们一定在文档中提到了这一点。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3191691|entityMap^0|0|5|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Restart the server has solved the issue for me. They must have mentioned it in the documentation.

blocks|key|2977804|text|我得到了相同的错误，但原因不同，所以我会告诉你(以防其他人遇到同样的问题)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2977805|我把所有东西都准备好了，但是我把我的自定义标签放在一个名为template_tags的文件夹中，经过长时间的搜索，我发现它必须是templatetags，现在它可以工作了。因此，请检查文件夹名称是否与templatetags.完全相同|offset|length|style|CODE|BOLD|2977806|entityMap^0|0|T|D|1S|C|2S|C|2S|C|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@$D|M|E|N|F|G]|$D|O|E|P|F|G]|$D|Q|E|R|F|G]|$D|S|E|T|F|H]]|9|@]|A|$]]|$1|I|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|J|$]]

I was getting the same error but for a different reason so I'll tell you (in case someone else comes the same problem).

I had everything right but I had my custom tag inside a folder named <code>template_tags</code> and after a long search I found out that it had to be <code>templatetags</code>, and now it works. So check the folder name is exactly <code>templatetags</code>.

blocks|key|272344|text|假设您有以下结构：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|272345|--+Application_Name|272346|--模板标签|272347|--------------init.py|offset|length|style|BOLD|272348|272349|-------init.py|272350|-settings.py|272351|--+manage.py|272352|您必须确保以下几点：|272353|272354|您的“模板标签”所在的应用程序本身实际上安装在settings.py中的INSTALLED_APPS中(例如存在于"templatetags“中的"Application_Name")|unordered-list-item|272355|your标记模块本身已经安装在settings.py中的INSTALLED_APP中(例如在某些情况下，您必须删除所有生成的*.pyc，如果不起作用，则重试|272356|272357|entityMap^0|0|0|0|E|4|0|0|7|4|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|13|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|14|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|15|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|16|8|@$H|17|I|18|J|K]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|19|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|1A|8|@$H|1B|I|1C|J|K]]|9|@]|A|$]]|$1|O|3|P|5|6|7|1D|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1E|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1F|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]|$1|V|3|W|5|X|7|1H|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|X|7|1I|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|11|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|12|$]]

suppose you have the following structure:

-- Application_Name

-------templatetags

--------------init.py

--------------templates_extras.py

-------init.py

-------settings.py

-- manage.py

You have to make sure of the following:

<ul>
<li>your application itself inside which your "templatetags" is resident is actually installed in INSTALLED_APPS in settings.py (e.g. "Application_Name")</li>
<li>your tag module itself that exists inside "templatetags" is already installed in INSTALLED_APP in settings.py (e.g. "ApplicationName.templatetags.tempaltes_extras")</li>
<li>keep sure you have "init.py" under templatetags directory</li>
<li>you have to restart the server </li>
<li>In some cases you have to remove all generated *.pyc if it did not work then retry again </li>
</ul>

blocks|key|3191578|text|“自定义标签”不是一个有效的标签库错误，更常见的是因为自定义标签没有加载到应用程序中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3191579|将一个空的init.py放入放置“自定义模板标记”的同一文件夹中，并在终端上运行以下代码以加载自定义模板标记|offset|length|style|BOLD|3191580|touch+__init__.py|code-block|syntax|javascript|3191581|entityMap^0|0|5|4|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

"custom tags" is not a valid tag library error, more often is occurred because the custom tags are not loaded into the app.

place an empty init.py inside the same folder where your "custom template tag" is placed and run the below code on the terminal to load the custom template tags

<pre><code>touch __init__.py
</code></pre>

blocks|key|2977967|text|对于其他面临这种情况的人来说。假设你的应用程序名是MyApp，标记文件夹名是templatetags，那么在settings.py中你应该有：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2977968|INSTALLED_APPS+=+[
'MyApp',
'MyApp.templatetags'
]|code-block|syntax|javascript|2977969|您的django应用程序和您的应用程序包下的标签文件夹都需要在那里。|2977970|->+MyApp
++++--->+models.py
++++--->+views.py
++++--->+templatetags
++++++----->+__init__.py
++++++----->+app_filters.py|2977971|在您的模板文件中：|2977972|{%25+load+app_filters+%25}|2977973|app_filters.py也是这样的：|2977974|#+coding=utf-8
from+django+import+template

register+=+template.Library()


@register.filter(name='get_item')
def+get_item(dictionary,+key):
++++return+dictionary.get(key)|2977975|检查以上所有步骤，您可能会发现问题所在。|2977976|entityMap^0|P|5|12|C|1I|B|0|0|0|0|0|0|0|E|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|18|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|19|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1A|8|@]|D|@]|E|$]]|$1|Q|3|R|5|H|7|1B|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|1C|8|@$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|U|3|V|5|H|7|1F|8|@]|D|@]|E|$I|J]]|$1|W|3|X|5|6|7|1G|8|@]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|Z|$]]

For others facing this . Suppose your App name is <code>MyApp</code> and your tag folder name is <code>templatetags</code> then in <code>settings.py</code> you should have :

<pre><code>INSTALLED_APPS = [
'MyApp',
'MyApp.templatetags'
]
</code></pre>

Both your django app and your tag folder which is under your app package are needed there.

<pre><code>-&gt; MyApp
 ---&gt; models.py
 ---&gt; views.py
 ---&gt; templatetags
 -----&gt; __init__.py
 -----&gt; app_filters.py
</code></pre>

And in your template file :

<pre><code>{% load app_filters %}
</code></pre>

Also <code>app_filters.py</code> be like :

<pre><code># coding=utf-8
from django import template

register = template.Library()


@register.filter(name='get_item')
def get_item(dictionary, key):
 return dictionary.get(key)
</code></pre>

check all above steps and you may find the issue.

blocks|key|277748|text|请确保您的templatetags文件夹是用python初始化的，如果您有疑问，只需备份所有文件，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|277749|删除所有文件，在templatetags文件夹中创建init.py文件，然后重新启动服务器。|offset|length|style|BOLD|277750|现在您的文件夹在Python下，然后执行您的操作。|277751|这对我很有效..。|277752|entityMap^0|0|Q|4|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

Please ensure your templatetags folder is initialized with python, if you are in doubt, just take bakup of all files,

Remove all files,
Inside templatetags folder create init.py file only,
then restart your server,

Now your folder is under Python, then do your stuff.

This works for me...

blocks|key|2977907|text|对我来说，这是一个错误，在load标记中用引号将库名称括起来。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2977908|错误：{%25+load+'library_name'+%25}|2977909|更正：{%25+load+library_name+%25}|2977910|也可以参考其他答案。在登陆这里之前，我也解决了几个这样的问题。|2977911|entityMap^0|D|4|0|3|P|0|3|N|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|W|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|M|$]]

For me, it was the mistake of putting quotes around the library name in <code>load</code> tag.

WRONG: <code>{% load 'library_name' %}</code>

CORRECT: <code>{% load library_name %}</code>

Refer to other answers too. I solved a couple of those problems too before landing here.

blocks|key|275808|text|确保load语句正确。它应该是文件的名称，而不是应用程序的名称。例如，如果您有此应用程序：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|275809|appname
├──+__init__.py
├──+templatetags
│  +├──+__init__.py
│  +└──+foobarfilename.py|code-block|syntax|javascript|275810|然后你应该把这个放到你的模板中：|275811|{%25+load+foobarfilename+%25}|275812|当然，你也应该检查其他答案。|275813|entityMap^0|2|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|Y|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|R|$]]

Make sure the <code>load</code> statement is correct. It should be the name of the file, not the name of the app. For instance, if you have this app:

<pre><code>appname
├── __init__.py
├── templatetags
│   ├── __init__.py
│   └── foobarfilename.py
</code></pre>

Then you should put this in your template:

<pre><code>{% load foobarfilename %}
</code></pre>

Of course, you should check the other answers too.

blocks|key|2977899|text|在创建了模板标记之后，它应该位于settings.INSTALLED_APPS中安装的应用程序的“templatetags”包中，请确保重新启动开发服务器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2977900|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|$]]

After you have created the template tag and it should be within the 'templatetags' package within an app installed in the settings.INSTALLED_APPS, make sure you restart your dev-server.

blocks|key|274295|text|也许有人会发现这很有用:不知何故，我将目录命名为'templatetags+'而不是'templatetags'，也就是说，在末尾加了一个空格。花了几个小时才最终意识到。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|274296|entityMap^0|O|F|16|E|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Maybe someone will find this useful: somehow I had named the directory <code>'templatetags '</code> instead of <code>'templatetags'</code>, that is -- with a space at the end. Took hours to finally realize.

blocks|key|275750|text|这里列出的所有建议对我都没有帮助。所以在我的具体案例中，问题是模板标签必须从第三方应用程序加载，我手动将源文件夹与该应用程序一起复制到我的virtualenv中的src文件夹中。然后，我在该文件夹中运行python+setup.py+install。在此之后，django无法加载此模块。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|275751|然后我删除了这个应用程序的源代码和安装文件夹，并在requirements.txt文件中添加了相关行后使用pip+install+-r+requirements.txt进行安装。它被下载到src文件夹中，并安装完毕，一切都开始正常工作。希望这对某些人有帮助。|275752|entityMap^0|29|3|2T|N|0|P|G|1H|V|2M|3|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|I|$]]

All of the advice listed here didn't help me. So in my specific case the problem was that the templatetag had to be loaded from a third-party app, and I manually copied source folder with that app into <code>src</code> folder in my virtualenv. Then I ran <code>python setup.py install</code> inside that folder. After that django could not load this module. 

Then I removed the source and installed folder of this app and installed it using <code>pip install -r requirements.txt</code> after adding a relevant line into <code>requirements.txt</code> file. It was downloaded into the <code>src</code> folder, installed and everything began working properly. Hope this helps someone.

blocks|key|3191730|text|在我的示例中，我使用标记变量而不是寄存器变量创建了库实例|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3191731|tag+=+template.Library()|code-block|syntax|javascript|3191732|但它应该是|3191733|register+=+template.Library()|3191734|3191735|要成为有效的标记库，模块必须包含一个名为register的模块级变量，该变量是一个template.Library实例，所有标记和过滤器都注册为|blockquote|3191736|3191737|entityMap^0|A|2|H|3|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|11|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|13|8|@]|D|@]|E|$]]|$1|P|3|Q|5|R|7|14|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|15|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|U|$]]

In my case
I have created library instance using tag variable instead of register variable 

<pre><code>tag = template.Library()
</code></pre>

But it should be

<pre><code>register = template.Library()
</code></pre>

<blockquote>
 To be a valid tag library, the module must contain a module-level
 variable named register that is a template.Library instance, in which
 all the tags and filters are registered
</blockquote>

blocks|key|272466|text|在我的例子中，问题是，我使用的是{%25+load+filter_method_name+%25}|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|272467|我不得不换成{%25+filename+%25}|272468|entityMap^0|G|T|0|6|E|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

In my case the problem was,
I was using <code>{% load filter_method_name %}</code>

I had to change to <code>{% filename %}</code>

blocks|key|274413|text|在我的例子中，它是-我正在使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|274414|@register.inclusion_tag('template-to-use.html')|code-block|syntax|javascript|274415|我忘了创建那个模板，它马上就开始工作了。我知道上面的答案与大多数问题更相关-但希望有人会发现它是有用的。它本应该影响到我的：|274416|Template+does+not+exist|274417|但它没有这样做，这是有效的。|274418|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In my case it was - I am using 

<pre><code>@register.inclusion_tag('template-to-use.html')
</code></pre>

I forgot to create that template and right away it started working. I know above answers are more related to most of the issues - but hope maybe someone find it useful. It should have gotten to me:

<pre><code>Template does not exist
</code></pre>

but it did not and this worked.

I have a small Django project I received from a friend. The code works perfectly on his system. However, on my system I get the following error message when running the server:
<blockquote>
TemplateSyntaxError at /
'current_tags' is not a valid tag library: Template library current_tags not found, tried django.templatetags.current_tags
</blockquote>
The problem is with a line in an html file:
<pre><code>{% load current_tags %}
</code></pre>
This exact same code works on his system with no errors. What could that be?

Django: 'current_tags' is not a valid tag library

我从一个朋友那里收到了一个小的Django项目。代码在他的系统上运行得很好。但是，在我的系统上，我在运行服务器时收到以下错误消息：位于/的 TemplateSyntaxError“current_tags”不是有效的标记库:找不到模板库current_tags，请尝试django.templatetags.current_tags问题出在html文件中的一行：{% load current_tag

问Django：'current_tags‘不是有效的标记库
EN

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