blocks|key|180680|text|重新启动Visual+Studio对我很有帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|180681|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|$]]

Restarting Visual Studio helped me.

blocks|key|2787786|text|重新启动Visual+Studio无济于事，该文件夹已缓存在系统中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2787787|打开Solution+Explorer有一个看起来像许多页的图标：|offset|length|style|CODE|2787788|📷|atomic|2787789|这就是Show+All+Files。单击后，用户可以看到隐藏在visual+studio项目中的导致此错误的文件夹。(在视图部分中查找该文件夹。)|2787790|在我删除了不想要的文件夹，并重建项目后，您应该能够创建控制器，它将自动创建视图...|2787791|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/50bd08d17e71bebf546edda5604df936.png|imageAlt^0|0|2|H|0|0|1|0|0|3|E|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@$D|Z|E|10|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|11|8|@]|9|@$D|12|E|13|1|14]]|A|$]]|$1|K|3|L|5|6|7|15|8|@$D|16|E|17|F|G]]|9|@]|A|$]]|$1|M|3|N|5|6|7|18|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V|W|-4]]]]

Restarting Visual Studio didn't help, the folder is cached on the system. 

Open <code>Solution Explorer</code> there is an icon that looks like a many Pages: <a href="https://i.stack.imgur.com/NVhFg.png" rel="noreferrer"><img src="https://i.stack.imgur.com/NVhFg.png" alt="Show All Files"></a> which is the <code>Show All Files</code>. Once clicked, one is able to see the hidden, to the visual studio project, the folder that was causing this error. (Look for the folder in the View section.)

After I deleted the unwanted folder, and Rebuild Project, You should be able to Create the controller which will create the view automatically...

blocks|key|176757|text|如果文件夹缺少，则执行步骤|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|176758|选择包含缺少的folder.|176759|Select的Solution+Explorer+窗口中的|unordered-list-item|CODE|176760|+visual+studio项目或打开Show+All+Files+按钮(code|176761|176762|176763|📷|atomic|176764|)以显示现有的但缺少的文件夹。|176765|176766|选择隐藏文件夹，然后右键单击并选择菜单项Include+in+Project以添加到项目视图中的项目中。|ordered-list-item|176767|176768|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/50bd08d17e71bebf546edda5604df936.png|imageAlt^0|B|2|0|0|E|0|0|O|P|4|7|H|0|0|X|Y|7|J|E|0|0|0|0|1|0|1|0|0|0|F|0|0|0|1G|K|I|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1B|8|@$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1E|8|@$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]|$9|1J|A|1K|B|K]]|D|@]|E|$]]|$1|L|3|M|5|J|7|1L|8|@$9|1M|A|1N|B|C]|$9|1O|A|1P|B|C]|$9|1Q|A|1R|B|K]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|1S|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|1T|8|@]|D|@]|E|$]]|$1|P|3|Q|5|R|7|1U|8|@$9|1V|A|1W|B|C]]|D|@$9|1X|A|1Y|1|1Z]]|E|$]]|$1|S|3|T|5|6|7|20|8|@$9|21|A|22|B|C]]|D|@]|E|$]]|$1|U|3|-4|5|6|7|23|8|@]|D|@]|E|$]]|$1|V|3|W|5|X|7|24|8|@$9|25|A|26|B|C]|$9|27|A|28|B|K]]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|29|8|@]|D|@]|E|$]]|$1|Z|3|-4|5|6|7|2A|8|@]|D|@]|E|$]]]|10|$11|$5|12|13|14|E|$15|16|17|-4]]]]

Steps if a folder is Missing
<ol>
<li>In the <code>Solution Explorer</code> window
<ul>
<li>Select visual studio project which holds the missing folder.</li>
<li>Select or turn on the <code>Show All Files</code> button ( <a href="https://i.stack.imgur.com/NVhFg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NVhFg.png" alt="Show All Files" /></a> ) to show the existing, but missing folder.</li>
</ul>
</li>
<li>Select the hidden folder then right click and select the menu item <code>Include in Project</code> to add into the project in the project view.</li>
</ol>

blocks|key|2787856|text|我修复了它，实际添加了一个文件，然后再次删除它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2787857|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 fixed it by actually adding a file and then deleting it again.

blocks|key|176786|text|你需要注意，如果添加一个文件会自动添加其他文件/文件夹。例如，如果我添加了一个控制器，它会自动在视图中添加带有控制器名称的文件夹。我无法添加控制器.cs文件，直到我从视图中删除了带有控制器名称的文件夹。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|176787|entityMap^0|21|3|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|$]]

You need to give attention if adding a file automatically add other files/folders..for example if I added a controller which automatically add folder with controller name in views..I couldn't add controller <code>.cs</code> file until I deleted folder with controller name from views.

blocks|key|178896|text|如果你正在使用MVC，并且试图创建一个新的控制器，你也应该检查视图和模型。即使没有具有控制器名称的文件夹或文件，我也必须使用Show+All+Files删除具有相同名称(由于某种原因已经存在)的视图文件夹，并重新构建解决方案。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|178897|entityMap^0|1Q|E|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|$]]

If you're using MVC, and trying to create a new Controller, you should also check the Views and Models. Even though there was no folder or file with the Controller name, I had to delete a View folder with the same name (that already existed for some reason) using <code>Show All Files</code> and rebuild the solution.

blocks|key|3000338|text|简单地，在解决方案资源管理器中，在项目的名称->+Unload+CLick上右转项目。然后在同一项目上单击鼠标右键并单击“重新加载”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3000339|问题已修复(y)|3000340|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Simply, On Solution Explorer Right CLick on Project's name -> Unload Project.
then right click on the same project and click 'Reload'.

Problem is Fixed (y)

blocks|key|2787978|text|项目文件已在visual+studio+2017中卸载。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2787979|​|2787980|📷|atomic|offset|length|2787981|2787982|最简单的方法是复制项目文件夹并粘贴不同的存储库，然后在visual+studio中打开项目，然后在运行项目后，它应该可以工作。例如(D：->E:这里我提到了仓库这些东西)|2787983|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/edf5c35260ef7bc0e5ed53a24dc157fc.jpeg|imageAlt^0|0|0|0|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@$G|X|H|Y|1|Z]]|A|$]]|$1|I|3|C|5|6|7|10|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|11|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S|T|-4]]]]

The project file was unloaded in visual studio 2017

<img src="https://i.stack.imgur.com/YlT1D.jpg" alt="image">

The easiest way is to copy your project folder and paste different repository then open your project in visual studio then after run the project, it should work. 
for example
(D:--------->E:[here i mentioned repository these things])

blocks|key|176834|text|Visual+Studio+2017+v15.9.12...我遇到了这个问题，但没有实际的文件夹冲突。在我的例子中，我有一个名为NewOrder的解决方案文件夹，我试图创建一个同名的子项目，但遇到了上面的错误。我尝试关闭并重新打开解决方案(没有重新启动，所以不确定这是否会有所不同)，但以下是对我有效的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|176835|176836|已重命名解决方案文件夹|unordered-list-item|176837|创建了我的项目。在这一点上，我得到了一个奇怪的错误，关于无法定位.net标准2.0...然后我重新启动了VS，修复了problem|176838|renamed+|176839|的文件夹|176840|现在一切都正常了。我重新启动了VS，现在一切正常。|176841|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|R|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|S|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|O|$]]

Visual Studio 2017 v 15.9.12 ... I ran into this problem, but with no actual folder conflict. In my case, I had solution folder named NewOrder, and I was trying to create a child project with the same name, but encountered the above error. I tried closing and reopening the solution (didn't restart VS so not sure if that would have made a difference) but here's what worked for me.

<ul>
<li>renamed solution folder</li>
<li>created my project. At this point, I got a strange error about not being able to locate the .net standard 2.0... so then I did restart VS, which fixed that problem</li>
<li>renamed the folder back</li>
</ul>

Now everything works fine. I restarted VS again just for good measure and all works fine now.

blocks|key|176843|text|单击Solution+Explorer中的Show+All+Files菜单，在Controller、Views和Model文件夹中查看该文件，并从那里删除该文件|type|unstyled|depth|inlineStyleRanges|entityRanges|data|176844|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|$]]

Click on Show All Files Menu in Solution Explorer and See That file in Controller, Views and Model Folder and delete that from there also

blocks|key|176857|text|在我的例子中，当尝试向解决方案中添加新项目时，即使具有相同名称的项目已从visual+studio+(2019)中的解决方案中删除，我也必须打开文件资源管理器并删除已删除项目的文件夹。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|176858|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|$]]

In my case, when trying to add a new project to a solution, even though a project with the same name had been removed from the solution in visual studio (2019), I had to open file explorer and delete the folder for the removed project.

blocks|key|178301|text|我右键单击并删除了文件夹。然后点击上面我想要创建项目的文件夹并创建项目。在Location部分，我打开文件资源管理器，我已经删除的文件仍然显示为->，从这里删除它，然后继续。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|178302|​|178303|📷|atomic|offset|length|178304|178305|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/72bb253f07dbaf9b2138b49282140a0e.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

I right clicked and removed folder. Then Clicked upper the folder I wanted to create project in and created project. In the Location section I opened the File explorer and the file I had deleted still appeared -&gt; deleted it from here and then went ahead.
<a href="https://i.stack.imgur.com/M6nca.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/M6nca.png" alt="enter image description here" /></a>

I try to add a new file to my source controlled VS2012 solution and receive this message:

<blockquote>
 A file or folder with the name 'xxx' already exists. Please give a unique
 name to the item you are adding, or delete the existing item first.
</blockquote>

I'm 100% sure that there is no file with the given name.

So how do I get VS to add items again?

A file or folder with the name already exists Visual Studio

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我尝试将新文件添加到受源代码管理的VS2012解决方案中，并收到以下消息：名为'xxx‘的文件或文件夹已存在。请为您要添加的项目指定唯一的名称，或者先删除现有项目。我百分之百确定没有给定名称的文件。那么我如何让VS再次添加项目呢？

问同名的文件或文件夹已存在Visual Studio
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