blocks|key|4414708|text|我也有同样的问题。删除.vs文件夹(包括所有内容，文件夹可能被隐藏)对我来说很有效。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4414709|entityMap^0|B|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|$]]

I had the same problem. Deleting <code>.vs</code> folder (including all contents, folder might be hidden) worked for me.

blocks|key|4414608|text|我通过在以admin身份运行的cmd窗口中列出绑定的IP地址解决了类似的问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414609|netsh+http+show+iplisten|code-block|syntax|javascript|4414610|然后，一个接一个地，把它们都吹走：|4414611|netsh+http+delete+iplisten+ipaddress=127.0.0.200
netsh+http+delete+iplisten+ipaddress=127.0.0.2
...|4414612|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I solved a similar problem by listing bound IP addresses in a cmd window running as admin:

<pre><code>netsh http show iplisten
</code></pre>

Then, one by one, blowing them all away:

<pre><code>netsh http delete iplisten ipaddress=127.0.0.200
netsh http delete iplisten ipaddress=127.0.0.2
...
</code></pre>

blocks|key|4415007|text|我以“以管理员身份运行”的身份运行Visual+Studio，这解决了我的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415008|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 ran my Visual Studio as "Run as administrator" and this solved my problem.

blocks|key|4415473|text|在我的例子中，我需要在.Net+5MVC项目的launchSettings.json中更新"publishAllPorts“=+false。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415474|+"Docker":+{
++++++"commandName":+"Docker",
++++++"launchBrowser":+true,
++++++"launchUrl":+"{Scheme}://{ServiceHost}:{ServicePort}",
++++++"publishAllPorts":+false
++++}|code-block|syntax|javascript|4415475|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In my case, I need to update &quot;publishAllPorts&quot; = false in .Net 5 MVC project's launchSettings.json.
<pre><code> &quot;Docker&quot;: {
 &quot;commandName&quot;: &quot;Docker&quot;,
 &quot;launchBrowser&quot;: true,
 &quot;launchUrl&quot;: &quot;{Scheme}://{ServiceHost}:{ServicePort}&quot;,
 &quot;publishAllPorts&quot;: false
 }
</code></pre>

blocks|key|4414752|text|在使用.net+Core2.0的VS2017+v15.6.7中，这种情况发生在我身上。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414753|当该项目首次启动时，它为localhost创建了一个SSL证书，并且启动良好。当我禁用SSL时，我一直收到这个问题。|4414754|显然，当您禁用SSL时，端口号会更改，并且并非所有的端口号都会更改为新的端口号。确保Debug上的端口号都是相同的数字。|4414755|📷|atomic|offset|length|4414756|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/4709be320d49a6e094a332d19ead8ce8.png|imageAlt^0|0|0|0|0|1|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|W|8|@]|9|@$I|X|J|Y|1|Z]]|A|$]]|$1|K|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R|S|-4]]]]

This happened to me in VS2017 v 15.6.7 using .net core 2.0.

When the project first launched it created an SSL Cert for localhost and started fine. When I disabled SSL I kept getting this issue. 

Apparently when you disable SSL the port numbers are changed and not all of the port numbers get changed to the new port. Make sure port numbers on Debug are all the same number.
<a href="https://i.stack.imgur.com/unZNX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/unZNX.png" alt="enter image description here"></a>

blocks|key|4414812|text|我遇到了这个问题，并通过关闭所有打开的Visual+Studio实例来解决它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414813|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 was having this issue and solved it by closing all open instances of Visual Studio.

blocks|key|4415304|text|进入控制面板>程序和功能>+IISExpress+>修复|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415305|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|$]]

Go to control panel > Programs and feature > IISExpress > Repair

blocks|key|4414661|text|以管理员身份打开cmd并运行以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414662|netsh+http+delete+iplisten+ipaddress=xxx.xxx.x.xxx|code-block|syntax|javascript|4414663|ipaddress是您的内网ip。|4414664|这对我很有效。|4414665|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Open cmd as administrator and run this command:

<pre><code>netsh http delete iplisten ipaddress=xxx.xxx.x.xxx
</code></pre>

ipaddress is your private ip. 
This worked for me.

blocks|key|4414562|text|要让它为我工作，我所要做的就是重新创建虚拟目录。我重新安装了Windows，然后把这个项目从Git中拉了出来。为此，右键单击解决方案项目并选择Properties，然后转到Web选项卡并单击project+Url旁边的Create+Virtual+Directory。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414563|我希望这对其他人也有帮助！|4414564|芽|4414565|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

For this to work for me, all I had to do was recreate the virtual directory. I had re-installed Windows and then pulled the project back out of Git. To do this, right-click on the solution project and choose Properties, then go to the Web tab and click the Create Virtual Directory beside the Project Url.

I hope this helps someone else too!

Bud

blocks|key|4414571|text|Project+properties>网站>创建虚拟目录适用于我|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414572|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|$]]

Project properties> Web > Create Virtual Directory worked for me

blocks|key|4414838|text|更改端口号并删除脚本调试(如果已启用)以在localhost中解析。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4414839|entityMap^0|L|9|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|$]]

Change the port number and remove script debugging (if enabled) to resolve in <code>localhost</code>.

blocks|key|4414912|text|我试过所有的方法，但都不管用，但这个管用了。如果可以在本地IIS而不是Express上进行调试，请更改配置，如下图所示。别忘了点击“创建虚拟目录”|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414913|​|4414914|📷|atomic|offset|length|4414915|4414916|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/cac469bb925a93ba0e3de9e70e31970d.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've tried everything but nothing worked, but this did.
If you can debug on local IIS instead of Express, change the configurations as shown in the image below. Do not forget to click on "Create virtual directory"

<a href="https://i.stack.imgur.com/b3qB0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/b3qB0.png" alt="enter image description here"></a>

blocks|key|4414930|text|对我来说，重启机器是唯一有效的方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414931|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|$]]

rebooting the machine was the only thing that worked for me

blocks|key|4415053|text|我最近遇到了这个问题，并尝试了大多数建议，但事实证明我的问题是不同的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415054|我们的应用程序有一个部分，如果你使用HTTP，它会将你重定向到HTTPS+(是的，我知道还有更好的方法，但这是遗留的)。此外，当你处于dev模式时，会对localhost进行特殊的处理，它会将你重定向回HTTP，尽管我不知道为什么。|4415055|我有一个新的要求，需要在HTTPS中测试。|4415056|在正常的网页上，将http://更改为https://并调用重定向可以很好地工作，但在IISExpress中，您使用的是自定义端口。例如，如果你在https://localhost:44300上，你不能直接切换到https+b/c，那个端口只服务于https，而不是http://localhost:44300。|offset|length|4415057|因此，如果你遇到了这个问题，并且你已经清除了配置文件，但它没有帮助，请检查你的代码中的重定向。你可能有一些东西使用了硬编码或部分硬编码的url，或者来自配置文件的url，而你还没有更新到https。|4415058|更新:我还建议清除所有的.suo和.user文件，还有人建议清除obj/文件夹。我建议在关闭VS的情况下执行此操作，然后重新启动。当我尝试设置https://并更改端口时，缓存的端口值遇到了很多问题。我还建议尝试这个建议，以检查SSL端口是否在正确的范围内，尽管我不知道这是否仍然是一个要求https://stackoverflow.com/a/24957146。|4415059|entityMap|0|LINK|mutability|MUTABLE|url|https://localhost:44300/|1|http://localhost:44300/|2|https://stackoverflow.com/a/24957146^0|0|0|0|21|N|0|3P|M|1|0|0|41|10|2|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|10|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|11|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|12|8|@]|9|@$H|13|I|14|1|15]|$H|16|I|17|1|18]]|A|$]]|$1|J|3|K|5|6|7|19|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|1A|8|@]|9|@$H|1B|I|1C|1|1D]]|A|$]]|$1|N|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]|V|$5|Q|R|S|A|$T|W]]|X|$5|Q|R|S|A|$T|Y]]]]

I recently ran into this exact problem and tried most of the suggestions but it turns out my problem was something different.

Our application has a section that redirects you to HTTPS if you are on HTTP (yes, I know there are better ways but this is legacy). In addition, there is special handling of localhost when you are in dev mode which redirected you back to HTTP, though I don't know why.

I have a new requirement that requires testing in HTTPS.

On a normal web page, changing http:// to https:// and calling Redirect would work fine but in IISExpress you are using custom ports. So for example, if you are on <a href="https://localhost:44300" rel="nofollow noreferrer">https://localhost:44300</a> you can't just switch to <a href="http://localhost:44300" rel="nofollow noreferrer">http://localhost:44300</a> b/c that port only serves https, not http.

So, if you are having this problem and you've cleared the config files and it didn't help, check your code for redirects. you might have something using a hardcoded or partially hardcoded url or a url from a config file that you haven't updated to https.

Update:
I also suggest clearing all .suo and .user files and someone else suggested clearing the obj/ folder. I suggest doing this with VS closed and then restarting. I had a lot of trouble with values for ports being cached when i tried to setup https:// and change ports. I also suggest trying this suggestion to check that the SSL port is within the correct range, though I don't know if that is still a requirement <a href="https://stackoverflow.com/a/24957146">https://stackoverflow.com/a/24957146</a>

blocks|key|4415088|text|在我的例子中，Visual+Studio+2017+>+Tools+>+Options|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4415089|在调试菜单的侧边列表中找到Edit+and+Continue|4415090|启用编辑并继续复选框Uncheck|4415091|这解决了我的问题。|4415092|entityMap^0|S|F|0|D|H|0|A|7|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|$]]

In my case, Visual Studio 2017 > <code>Tools &gt; Options</code>

In Debugging menu in the side list find <code>Edit and Continue</code>

<code>Uncheck</code> the Enable Edit and Continue check box

This resolves my problem.

blocks|key|4415169|text|这里也有同样的问题，但我认为我的问题是由于安装了Visual+Studio的最新版本，并同时运行了2015和2019版本的解决方案。我删除了整个.vs文件夹，并重新启动了Visual+Studio，它起作用了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415170|我认为问题是在.vs文件夹中每个版本的Visual+Studio都有多个配置，这似乎搞砸了。|4415171|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|$]]

Same problem here but I think mine was due to installing the latest version of Visual Studio and having both 2015 and 2019 versions running the solution. I deleted the whole .vs folder and restarted Visual Studio and it worked.

I think the issue is that there are multiple configurations for each version of Visual Studio in the .vs folder and it seems to screw it up.

blocks|key|4415290|text|尝试删除本地主机的cookies|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415291|​|4415292|📷|atomic|offset|length|4415293|4415294|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/cbae99864715872c56922410b5b9aad6.jpeg|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]]]]

Try deleting cookies for your localhost

<a href="https://i.stack.imgur.com/tUIfT.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tUIfT.jpg" alt="enter image description here"></a>

blocks|key|4415331|text|我的问题原来是一个自称的属性：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415332|​|4415333|📷|atomic|offset|length|4415334|4415335|一旦我解决了这个问题，误导性的连接错误消息就消失了。|4415336|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/694e2fe76d29659560de240820079734.png|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]]]]

My problem turned out to be a property which called itself:

<a href="https://i.stack.imgur.com/sGSEA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sGSEA.png" alt="enter image description here"></a>

Once I fixed this, the misleading connection error message disappeared.

blocks|key|4414880|text|我必须在本地IIS中添加https绑定|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4414881|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 had to add https bindings in my local IIS

blocks|key|4415113|text|对我来说，问题是配置被设置为自定义的AsLive，而不是Debug。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4415114|​|4415115|📷|atomic|4415116|4415117|把它放回原处帮我整理好了。|4415118|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/652c1f00f161671c8817554906397447.png|imageAlt^0|I|6|S|5|0|0|0|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|11|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|12|8|@]|D|@$9|13|A|14|1|15]]|E|$]]|$1|K|3|G|5|6|7|16|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|17|8|@]|D|@]|E|$]]|$1|N|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|O|$P|$5|Q|R|S|E|$T|U|V|-4]]]]

For me the issue was the configuration was set to a custom <code>AsLive</code> instead of <code>Debug</code>.

<a href="https://i.stack.imgur.com/QBVCH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QBVCH.png" alt="enter image description here"></a>

Setting that back sorted it for me.

blocks|key|4415233|text|当我今天早上开始工作时，我遇到了类似的问题，使用Visual+Studio+Community+2019，Debug+configuration。无法访问IIS+Express+(Google+Chrome)站点。当我在Visual+Studio中通过红色的停止按钮终止程序执行时，我得到了一条windows错误消息，指出“4###的进程没有运行”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415234|这台电脑开了一夜。|4415235|我看了一下这里的答案，解决方案看起来很复杂。我尝试关闭并重新打开解决方案，重新启动Visual+Studio，最后重新启动计算机。|4415236|重新启动计算机解决了我的问题。我没有删除任何文件或更改任何其他设置。|4415237|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

I ran into a similar problem when I started working this morning, using Visual Studio Community 2019, Debug configuration. The IIS Express (Google Chrome) site was unreachable. When I terminated program execution via the red stop button in Visual Studio, I was rewarded with a windows error message stating "process with an id of 4### is not running".

The computer had been left on overnight. 

I looked through the answers here and the solutions looked complicated. I tried closing and reopening the solution, restarting Visual Studio and, finally, restarting the computer. 

Restarting the computer resolved my issue. I did not delete any files or change any other settings.

blocks|key|4415371|text|我有同样的问题…我尝试了上面提到的一切，但没有helped.....then我只是关闭了我的windows防火墙，它对我工作。因此，只需关闭防火墙并以管理员身份运行Visual+Studio即可。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4415372|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 had same issue....I tried everything above mentioned but nothing helped.....then I just turned off my windows firewall and it worked for me.
So just turn off your Firewall and run Visual Studio as Administrator.

blocks|key|4415520|text|我的原因是，当我手动更新applicationHost.config时，我也删除了|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4415521|<add+name="DefaultAppPool"+managedRuntimeVersion="v4.0"+/>|code-block|syntax|javascript|4415522|但是这条线|4415523|<applicationDefaults+applicationPool="DefaultAppPool"+/>|4415524|一直留在那里。因此，很明显，当我添加一些应用程序时，IIS被损坏，并拒绝连接到任何应用程序，即使是那些设置到其他应用程序池的应用程序。|4415525|因此，请确保您有一个可用于所有应用程序的有效池。|4415526|entityMap^0|C|M|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|10|8|@]|D|@]|E|$]]|$1|Q|3|R|5|6|7|11|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|T|$]]

My reason was that when I updated <code>applicationHost.config</code> manually, I deleted also
<pre><code>&lt;add name=&quot;DefaultAppPool&quot; managedRuntimeVersion=&quot;v4.0&quot; /&gt;
</code></pre>
but the line
<pre><code>&lt;applicationDefaults applicationPool=&quot;DefaultAppPool&quot; /&gt;
</code></pre>
remained there. So obviously when I added some app, IIS got corrupted and refused to connect to any apps, even those which were set to another app pool.
So, please, make sure you have a valid pool for all applications.

I have copied my solution file from another system and tried to run it on my machine:
For this, I have gone to the project folder and deleted the previous solution file and copied the new one.

Now, it started giving me error. connection refused etc. So, I got one solution from here: <a href="https://stackoverflow.com/questions/32190881/how-to-solve-err-connection-refused-when-trying-to-connect-to-localhost-running">How to solve ERR_CONNECTION_REFUSED when trying to connect to localhost running IISExpress - Error 502 (Cannot debug from Visual Studio)?</a>

According to it, I changed the port number from 1049 to 1052. It loaded and one of the pages gets loaded.
But when I entered the desired login credentials then it redirected to the older port again, like this:

<pre><code>http://localhost:1049/Home/SearchFlight
</code></pre>

and the error is:

<pre><code> This site can’t be reached

 localhost refused to connect.
 Search Google for localhost 1049 Home Search Flight
 ERR_CONNECTION_REFUSED
</code></pre>

Now, I don't know what to do from here. I have changed the port number to 1052 but still its pointing to 1049. What should i do now?

localhost refused to connect Error in visual studio

Visual Studio

防火墙

Windows

我从另一个系统复制了我的解决方案文件，并尝试在我的计算机上运行它:为此，我转到项目文件夹，删除了以前的解决方案文件，并复制了新的解决方案文件。现在，它开始给我错误。连接被拒绝等等。所以，我从这里得到了一个解决方案：根据它，我将端口号从1049更改为1052。它被加载了，其中一个页面被加载了。但当我输入所需的登录凭据时，它再次重定向到较旧的端口，如下所示：http://localhost:1049/

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