blocks|key|854746|text|我也有过同样的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|854747|我从命令行运行Program.cs文件，错误消息不同。|854748|因此，显然，我没有安装适当的.NET核心运行时。|854749|您可以通过以下链接-+https://dotnet.microsoft.com/download下载它|offset|length|854750|entityMap|0|LINK|mutability|MUTABLE|url|https://dotnet.microsoft.com/download^0|0|0|0|B|11|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@$H|V|I|W|1|X]]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

I had the same issue. 
I ran Program.cs file from the command line and the error message was different. 
So, apparently, I didn't have the appropriate .NET Core runtime installed. 
You can download it by the following link - <a href="https://dotnet.microsoft.com/download" rel="noreferrer">https://dotnet.microsoft.com/download</a>

blocks|key|1485772|text|我也犯了同样的错误。从依赖项中删除"Microsoft.AspNetCore.All“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1485773|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 the same error. Remove "Microsoft.AspNetCore.All" from dependencies.

blocks|key|854798|text|我降低了"Microsoft.AspNetCore.App“版本的等级，错误消失了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|854799|entityMap^0|5|O|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 have downgraded "<code>Microsoft.AspNetCore.App</code>" version and error gone .

blocks|key|1485793|text|我在管理模式下重新启动了Visual实例，并且能够进行调试。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1485794|关闭Visual后，我现在可以以正常模式启动并按预期进行调试。但我不知道是什么改变了。|1485795|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|$]]

I restarted my Visual Studio instance in Admin mode and I was able to debug. 

After closing Visual Studio I can now start in normal mode and debug as expected. I'm not sure what changed though.

blocks|key|1485826|text|我得到这个错误是因为指向一个不再存在的项目的项目引用(在合并的git-提交中被删除)。通过右键单击项目解决它，然后Edit+Project+File，删除引用并保存.|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1485827|entityMap^0|1L|H|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 got this error because of a Project reference pointing to a project, that did not exist anymore (was removed in merged git-commit). Solved it by right-clicking the project, then <code>Edit Project File</code>, delete the reference and save.

blocks|key|35407|text|我也面临着同样的问题！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|35408|我通过VS安装程序将我的视觉工作室更新为最近的版本。|35409|在更新时，我还添加了以下VS工作负载：|35410|ASP.NET与web开发|unordered-list-item|35411|.NET桌面开发|35412|参见此处的工作负载：|35413|https://github.com/MicrosoftDocs/visualstudio-docs/blob/master/docs/install/modify-visual-studio.md|offset|length|35414|这对我有用！|35415|我没必要降级或者删除任何东西|35416|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|0|0|0|2R|0|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|12|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|13|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|14|8|@]|9|@]|A|$]]|$1|I|3|J|5|H|7|15|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|16|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|17|8|@]|9|@$O|18|P|19|1|1A]]|A|$]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1C|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|N]]]]

I was facing the same issue!

I updated my Visual Studios to the most recent via the VS Installer.
 While updating, I also added the following VS Workloads:

<ul>
<li>ASP.NET and web development</li>
<li>.NET desktop development</li>
</ul>

See about workloads here: 
<a href="https://github.com/MicrosoftDocs/visualstudio-docs/blob/master/docs/install/modify-visual-studio.md" rel="noreferrer">https://github.com/MicrosoftDocs/visualstudio-docs/blob/master/docs/install/modify-visual-studio.md</a>

This worked for me! 

I did not have to downgrade or remove anything

blocks|key|854876|text|我错过了对AWSSDK.Core的参考。在安装特定版本并重新启动VS2019和重新构建之后，项目运行良好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|854877|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 missing a reference to AWSSDK.Core. After installing the specific version and re-starting VS2019 and rebuilding, the project ran fine.

blocks|key|1485942|text|在软件包升级之后，我也遇到了同样的问题。你不需要任何vs更新。只需转到dotnet.microsoft.com/download/dotnet-core/2.2并获得运行时dotnet.microsoft.com/download/dotnet-core/2.2|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1485943|entityMap|0|LINK|mutability|MUTABLE|url|https://dotnet.microsoft.com/download/dotnet-core/2.2|1^0|Z|19|0|2E|19|1|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@$A|N|B|O|1|P]|$A|Q|B|R|1|S]]|C|$]]|$1|D|3|-4|5|6|7|T|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|K]]]]

I had same issue after package upgrading. You don't need any vs update.
Just go to 
<a href="https://dotnet.microsoft.com/download/dotnet-core/2.2" rel="nofollow noreferrer">dotnet.microsoft.com/download/dotnet-core/2.2</a>
and get runtime 
dotnet-hosting-2.2.7-win.

blocks|key|854901|text|突然间它就停止工作了。对我来说，干净的解决方案和重建的解决方案奏效了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|854902|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|$]]

All of a sudden it stopped working. For me clean solution and re-build solution worked.

blocks|key|1485959|text|我不得不做一个“清洁”和“重建”的项目，然后，它再次发挥作用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1485960|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 do a "clean" and "rebuild" of the project and after that it worked again.

blocks|key|35583|text|在我的例子中，切换到x64可以节省时间。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|35584|📷|atomic|offset|length|35585|​|35586|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/1a91120d690c308fe892493b3fd400ac.png|imageAlt^0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@$E|T|F|U|1|V]]|A|$]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P|Q|-4]]]]

In my case, switching to x64 save the day. <img src="https://i.stack.imgur.com/n2DOR.png" alt="enter image description here">

blocks|key|1486083|text|我试图运行一个使用NetCore2.2的项目，但是我没有它，并且没有错误(我有1.1)，所以在使用“”安装了2.2之后，它工作起来很有魅力。=)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1486084|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 trying to run a project that used net core 2.2 but I didn't have it, and there was no error(I had 1.1), so after installing the 2.2 using the "Visual Studio Installer" it worked like a charm. =)

blocks|key|855191|text|我也有同样的问题。但对我来说，我的项目是在.NET+Core2.2中运行的，我还没有安装它。我在用VS+2019。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|855192|因此，对于解决方案，只需转到，VS+2019点击"Modify“，如下所示(不过是西班牙语)：|855193|📷|atomic|offset|length|855194|​|855195|然后，单击“单个组件”，如|855196|855197|855198|然后，确保您签入了".NET+Core2.2Runtime“(如果您愿意的话，也可以在.NET+Core3.0上面)并单击”修改“，如下所示|855199|855200|855201|希望这对你有用。|855202|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/0ebbf729b00e8be1b0e6ccf1f71f8e1b.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/64526920990fdc5f7abce14cf0319684.png|2|https://developer.qcloudimg.com/http-save/yehe-900000/6ea53895e48c7f75e92779df99a1337a.png^0|0|0|0|1|0|0|0|0|0|1|1|0|0|0|0|1|2|0|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|18|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|19|8|@]|9|@$G|1A|H|1B|1|1C]]|A|$]]|$1|I|3|J|5|6|7|1D|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1E|8|@]|9|@]|A|$]]|$1|M|3|E|5|F|7|1F|8|@]|9|@$G|1G|H|1H|1|1I]]|A|$]]|$1|N|3|J|5|6|7|1J|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1K|8|@]|9|@]|A|$]]|$1|Q|3|E|5|F|7|1L|8|@]|9|@$G|1M|H|1N|1|1O]]|A|$]]|$1|R|3|J|5|6|7|1P|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1R|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11|12|-4]]|13|$5|X|Y|Z|A|$10|14|12|-4]]|15|$5|X|Y|Z|A|$10|16|12|-4]]]]

I ran with the same problem. But for me it was that my project was running in .NET Core 2.2, which I didn't have installed. I'm using VS 2019.
So for the solution, just go to Visual Studio Installer and for your VS 2019 hit &quot;Modify&quot; like in the following image (it's in spanish though):
<img src="https://i.stack.imgur.com/9jagd.png" alt="See image here" />
Then, click &quot;Individual Components&quot;, like <img src="https://i.stack.imgur.com/B3mxy.png" alt="here." />
And then, make sure you checked in &quot;.NET Core 2.2 Runtime (EOL)&quot; (and above like .NET Core 3.0, if you want) and click &quot;Modify&quot;, as shown <img src="https://i.stack.imgur.com/5Yy6s.png" alt="here" />
Hope this works for you.

blocks|key|1486230|text|我的项目也出现了类似的错误:目标进程退出而没有引发CoreCLR启动事件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1486231|我的启动项目目标是多个框架:+netstandard2.0;netcoreapp2.2|1486232|我通过使用以下堆栈溢出方向将目标框架从netstandard2.0更改为netcoreapp2.2来解决这个问题：如何在Visual中切换.NET核心项目的目标框架|offset|length|1486233|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/36118567/how-to-switch-between-target-frameworks-for-net-core-projects-in-visual-studio/36118895#36118895^0|0|0|1L|P|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

I was getting a similar error with my project: The target process exited without raising a CoreCLR started event.

My startup project was targeting multiple frameworks: netstandard2.0;netcoreapp2.2

I fixed this issue by changing my target framework from netstandard2.0 to netcoreapp2.2 using the following stackoverflow directions: <a href="https://stackoverflow.com/questions/36118567/how-to-switch-between-target-frameworks-for-net-core-projects-in-visual-studio/36118895#36118895">How to switch between target frameworks for .NET Core projects in Visual Studio</a>

blocks|key|35772|text|删除我的解决方案的所有bin文件夹|type|ordered-list-item|depth|inlineStyleRanges|entityRanges|data|35773|再建一次一切对我来说都是个诀窍|35774|(.NET+Core+3.1+VS+2019年)|unstyled|35775|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|J|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|K|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|L|8|@]|9|@]|A|$]]]|H|$]]

<ol>
<li>Deleting all bin folders of my solution</li>
<li>building everything again did the trick for me</li>
</ol>

(.NET Core 3.1 VS 2019)

blocks|key|1486263|text|确保安装您希望在其上运行的.net核心的确切版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1486264|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|$]]

Be sure to install the exact version of .net core that you want your project to run on

blocks|key|35802|text|我遇到了这个问题，并最终将其跟踪到执行“发布”操作，其部署模式为：“自包含”，导致我的bin目录中的所有.NET运行时二进制文件都被删除。我认为事情完全搞砸了，我有几个解决方案，它们都使用相同的通用bin目录，每个目录构建不同的exe和dll，只有一个是作为测试的自包含部署。我认为这开始混淆了.NET核心的一些次要的dll，并导致了这个问题。有一次，我清除了所有“不是我的”的dll，重建了一切，重新开始工作。我正在使用VisualStudio2019+16.8.2+/+.NET+Core+3.1|type|unstyled|depth|inlineStyleRanges|entityRanges|data|35803|我知道最初的问题是关于.NET核心2.2，但是这个问题在搜索主要问题时首先出现。|35804|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|$]]

I had this issue and finally tracked it down to doing a &quot;publish&quot; operation with a deployment mode of: &quot;Self contained&quot; That resulted in dropping all .NET runtime binaries in my bin directory. Where I think things got totally messed up is I have several solutions all using that same common bin directory, each build different exe's and dll's.
Only one was for a self contained deployment as a test. I think that started mixing up some of the minor dlls for the .NET core and causing this issue. Once I purged all the dll's that were &quot;not mine&quot; and rebuilt things started working again. I'm using Visual Studio 2019 16.8.2 / .NET Core 3.1
I realize the original question is regarding .NET Core 2.2 but this question comes up first when searching for the main issue.

blocks|key|1486373|text|需要安装.Net+Core2.2。我修正了在Visual安装程序中添加此内容时的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1486374|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|$]]

.Net Core 2.2 is required to be installed. I fixed when I added this in Visual Studio Installer.

blocks|key|1486406|text|在xUnit测试中遇到了这个问题。将nuget包"Microsoft.NET.Test.Sdk“降级为15.9.0为我工作过|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1486407|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|$]]

Faced this issue during xUnit testing. Downgrading nuget package &quot;Microsoft.NET.Test.Sdk&quot; to 15.9.0 worked for me

blocks|key|35965|text|这似乎有很多不同的原因。对我来说，这是因为我升级了一个.csproj文件，但是我没有更新我的停靠文件中使用的映像。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|35966|​|35967|📷|atomic|35968|35969|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/d75bffb9a8c15753d9b61651e3509a0b.png|imageAlt^0|R|7|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|K|3|G|5|6|7|12|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|M|$N|$5|O|P|Q|E|$R|S|T|-4]]]]

It seems like there are lots of different causes for this. For me, it was because I had upgraded a <code>.csproj</code> file but I hadn't updated the image used in my docker file.
<a href="https://i.stack.imgur.com/DN91a.png" rel="noreferrer"><img src="https://i.stack.imgur.com/DN91a.png" alt="Image showing a 'FROM' line in a dockerfile using a dotnet image on version 5" /></a>

blocks|key|1486442|text|一个腐败的布局也是有可能的，如果这种情况发生的话。要修复，请转到projpath\bin\x64\configtype\AppX，例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1486443|C:\Users\Foo\Documents\Visual+Studio+2019\projectname\bin\x64\Debug\AppX|code-block|syntax|javascript|1486444|删除这里的一切，重建，你就可以走了。|1486445|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

A corrupt layout is also possible, had this happen myself. To fix, go to projpath\bin\x64\configtype\AppX, for example:
<pre><code>C:\Users\Foo\Documents\Visual Studio 2019\projectname\bin\x64\Debug\AppX
</code></pre>
Delete everything here, rebuild and you're good to go.

blocks|key|855435|text|既然我还没在这里看到它，这就是对我有用的东西。我在同一个解决方案中有一个UWP项目、Win32项目和Windows应用程序打包项目。使用FullTrustProcessLauncher.LaunchFullTrustProcessForCurrentAppAsync运行Win32应用程序会给出这条消息，但不起作用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|855436|它正在更改打包项目的项目设置中的设置:调试->调试器类型->后台任务进程:本机|855437|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|$]]

Since I don't see it here yet, here's what worked for me. I have a UWP project, Win32 project, and Windows application packaging project in the same solution. Running the Win32 app using FullTrustProcessLauncher.LaunchFullTrustProcessForCurrentAppAsync was giving this message and not working.
What fixed it was changing a setting in the packaging project's project settings:
Debug -&gt; Debugger type -&gt; Background task process: Native Only

blocks|key|36029|text|对我来说，我刚刚在Windows11的新安装上安装了VisualStudio2022，我的项目使用.Net+5，默认情况下它不是安装的(我只有.Net+6)。我只是使用Visual安装程序，修改了我的VS2022，选择了单独的组件，并启用了.Net+5.+Viola！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|36030|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|$]]

For me, I'd just installed Visual Studio 2022 on a fresh installation of Windows 11. My project uses .Net 5, which wasn't installed by default (I only had .Net 6). I simply used the Visual Studio installer, modified my VS2022, selected Individual Components, and enabled .Net 5. Viola!

blocks|key|36070|text|在从2019年到2022年更新Visual之后，我开始得到这个错误。结果，项目目标框架被设置为.Net+Core3.1，在卸载VS2019时将其删除，解决方案是将其更改为安装过程中选择的组件.Net+6.0+(从安装.Net+Core3.1也应该可以)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|36071|要做到这一点，右键单击项目名称并查找“目标框架”选项(我的安装是西班牙语的，所以我想它应该这么说)。|36072|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|$]]

I started to get this error after updating Visual Studio from 2019 to 2022. It turned out that the project target framework was set to .Net Core 3.1, which was removed when I uninstalled VS2019, and the solution was to change it to .Net 6.0 which is the component I had selected during installation (Installing .Net Core 3.1 from the Visual Studio Installer should work as well).
To do so, right click on the project name and look for the &quot;Target framework&quot; option (my installation is in Spanish so that's what I presume it should say).

blocks|key|36083|text|我也有同样的问题。现在，在VS2022中，您不能下载NetCore2.2。因此，只需从microsoft网站下载并安装NetCore+2.2即可。https://dotnet.microsoft.com/en-us/download/dotnet/2.2|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|36084|entityMap|0|LINK|mutability|MUTABLE|url|https://dotnet.microsoft.com/en-us/download/dotnet/2.2^0|21|1I|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I had same issue. Now in VS2022 you cannot download NetCore2.2.
So just download and install NetCore 2.2 from microsoft dotnet website.
<a href="https://dotnet.microsoft.com/en-us/download/dotnet/2.2" rel="nofollow noreferrer">https://dotnet.microsoft.com/en-us/download/dotnet/2.2</a>

blocks|key|36099|text|在对这个问题进行搜索之后，我看到了许多答案，比如“尝试和错误”，我得到了以下结果:它只取决于三个参数，它们必须兼容。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|36100|Windows平台"x86，x64"您可以从visual+studio的CPU选项中更改它或选择任何CPU，因此安装.net+x框架应该与windows兼容。|ordered-list-item|offset|length|style|BOLD|36101|项目的目标框架(检查项目目标框架“右键单击项目并检查目标框架”)，如果它是5，那么在第三个参数中启用的应该是5，或者更改这个参数，但是注意，如果您更改了它，您应该告诉其他团队成员。|36102|已启用的框架用于工具、获取工具和个人组件，并选择目标框架，与步骤2中的相同，然后按修改|36103|entityMap^0|0|0|I|0|0|2|0|0|6|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@$E|Q|F|R|G|H]]|9|@]|A|$]]|$1|I|3|J|5|D|7|S|8|@$E|T|F|U|G|H]]|9|@]|A|$]]|$1|K|3|L|5|D|7|V|8|@$E|W|F|X|G|H]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|N|$]]

I see many answers like try and error
after searching about the issue, I got the following :
it simply depends on three parameters and they have to be compatible
<ol>
<li>Windows platform &quot;x86,x64&quot; you can change it from the CPU option of the visual studio
or choose any CPU hence the install .net x framework should be compatible with the windows</li>
<li>The target framework for the project
(check the project target framework &quot;right-click on the project and check target framework&quot;) if it is 5 so the enabled in the third parameter should be 5 or change this one but take care you should tell the other team members if you change it</li>
<li>The Enabled framework go for tools and get tools and go for individuals component and chose the target framework the same as found in step 2 and press modify</li>
</ol>

blocks|key|1486614|text|我多次遇到这个问题，在.NET+Core2.1、3.1和5.0中使用VS+2017和VS+2019。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1486615|有许多条件可能导致这一问题的发生：|1486616|Microsoft可以在任何时候、自动和超出您的意识和知识安装.Net核心的版本。|1486617|它还可以更改任何.Net+Core版本所安装组件的安装。|1486618|您的VS版本必须与您已安装的.Net+Core版本兼容。|1486619|必须安装了以下所有组件才能解决/抢占.NET+5.0中的错误(请查看DotNet5.0站点以获得按版本列出的兼容性列表)。|1486620|MicrosoftWindowsSDK5.0.408必须全部安装并在控制面板中列出:WindowsCore5.0.17、.NET运行时、Windows托管、共享框架|1486621|如果在您不知情的情况下安装了任何.NET+Core3.1SDK，您必须卸载它并修复目标.net核心版本的安装。|1486622|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|V|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|W|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|Y|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|Q|$]]

I've encountered this issue multiple times, using VS 2017 and VS 2019 across .NET Core 2.1, 3.1 and 5.0.
There are many conditions that can cause this problem to occur:
Microsoft Update can install a version of .Net Core at any time, automatically and outside of your awareness and knowledge.
It can also change the installation of any .Net Core SDK version's installed components.
Your version of VS has to be compatible with the version of the .Net Core SDK that you have installed.
You must have all of the following components installed for this error to be resolved/pre-empted for .NET 5.0 (please check the dotnet 5.0 site for the compatibility list by versions).
Microsoft .NET SDK 5.0.408 which includes (the following below) must all be installed and listed in the control panel:
.NET Core 5.0.17 Windows Desktop Runtime,.NET Runtime, Windows Server Hosting, Shared Framework
If any .NET Core 3.1 SDK are installed without your knowledge, you must uninstall it and repair your targeted .net core version's installation.

blocks|key|1486637|text|最后，我只需安装正确的.Net+Core版本即可。安装程序可以在这里找到：https://dotnet.microsoft.com/en-us/download/dotnet|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1486638|entityMap|0|LINK|mutability|MUTABLE|url|https://dotnet.microsoft.com/en-us/download/dotnet^0|11|1E|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

On my end I just had to install the right .Net Core SDK version. installers can be found here: <a href="https://dotnet.microsoft.com/en-us/download/dotnet" rel="nofollow noreferrer">https://dotnet.microsoft.com/en-us/download/dotnet</a>

blocks|key|855718|text|当我尝试更改解决方案中的C#项目以使用Docker并运行它时，发生了此错误：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|855719|📷|atomic|offset|length|855720|​|855721|当我将C#项目改为使用Visual的调试服务器并运行它时，错误消失了：|855722|855723|855724|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/bf4064cec269e7eb045998823061576b.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/146d108ae9aa623445f0e0f09439dc00.png^0|0|0|1|0|0|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Y|8|@]|9|@$E|Z|F|10|1|11]]|A|$]]|$1|G|3|H|5|6|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|13|8|@]|9|@]|A|$]]|$1|K|3|C|5|D|7|14|8|@]|9|@$E|15|F|16|1|17]]|A|$]]|$1|L|3|H|5|6|7|18|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T|U|-4]]|V|$5|P|Q|R|A|$S|W|U|-4]]]]

This error occurred when I tried changing C# projects in my solution to use Docker and running it:
<a href="https://i.stack.imgur.com/4GsBq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4GsBq.png" alt="Docker selected in Visual Studio run command" /></a>
The error went away when I changed the C# projects back to use the Visual Studio's debug server and running it:
<a href="https://i.stack.imgur.com/b0n1P.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/b0n1P.png" alt="Visual Studio debug server selected in Visual Studio run command" /></a>

blocks|key|855730|text|对我来说，这是在我重命名项目名和重命名AssemblyName之后发生的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|855731|我解决了它删除隐藏文件夹.vs和obj的问题，它们都位于项目目录中。然后在VS上重新加载或重新打开项目。|855732|我现在不能再用任何Cpu进行调试了。|855733|entityMap^0|J|C|0|C|3|G|3|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|T|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|K|$]]

To me it happened after I rename the project name and also rename the <code>AssemblyName</code>.
I solved it removing hidden folder <code>.vs</code> and <code>obj</code>, both located inside project's directory. Then reload or reopen the project on VS.
I cant now debug with Any Cpu again.

I want to debug an empty WebApi Project based on .NET Core 2.2.
I installed the &quot;Core 2.2 SDK x86&quot; and changed the target framework to 2.2:
<pre><code>&lt;Project Sdk=&quot;Microsoft.NET.Sdk.Web&quot;&gt;
 &lt;PropertyGroup&gt;
 &lt;TargetFramework&gt;netcoreapp2.2&lt;/TargetFramework&gt;
 &lt;/PropertyGroup&gt;
</code></pre>
When I started to debug this project, IIS starts, but in the route <code>api/values</code> I see nothing (it loads forever) and I get this error:
<blockquote>
The target process exited without raising a CoreCLR started event.Ensure that the target process is configured to use .NET Core. This may be expected if the target process did not run on .NET Core
</blockquote>
In my solution WPF and Class Library projects exist. I wanted to make a WebApi for it. Like I said, it's an empty base project generated by Visual Studio 2019. I just installed Core 2.2. Why do I get that error and what am I doing wrong?
<a href="https://i.stack.imgur.com/gt8jT.png" rel="noreferrer"><img src="https://i.stack.imgur.com/gt8jT.png" alt="" /></a>

The target process exited without raising CoreCLR started event error with .NET Core 2.2

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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我想调试一个基于WebApi Core2.2的空.NET项目。我安装了“Core2.2SDK x86”并将目标框架更改为2.2：<Project Sdk="Microsoft.NET.Sdk.Web"> <PropertyGroup> <TargetFramework>netcoreapp2.2</Target...

问使用CoreCLR Core2.2退出目标进程而不引发.NET启动事件错误
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问使用CoreCLR Core2.2退出目标进程而不引发.NET启动事件错误EN