1,104 questions
https://github.com/dotnet/runtime/issues/87687#issuecomment-1595185810
VS2022 debugger crash with error Failed to read environment variable [DOTNET_STARTUP_HOOKS], HRESULT: 0x800700CB
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(217.60000000000002, 66%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGB%3C/text%3E%3C/svg%3E)
Guillaume Bruyneel
15
Reputation points
My config is as follow:
Microsoft Visual Studio Community 2022
Version 17.6.1
VisualStudio.17.Release/17.6.1+33717.318
Microsoft .NET Framework
Version 4.8.09037
Installed Version: Community
Visual C++ 2022 00482-90000-00000-AA359
Microsoft Visual C++ 2022
ASP.NET and Web Tools 17.6.326.62524
ASP.NET and Web Tools
Azure App Service Tools v3.0.0 17.6.326.62524
Azure App Service Tools v3.0.0
C# Tools 4.6.0-3.23259.8+c3cc1d0ceeab1a65da0217e403851a1e8a30086a
C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.
Extensibility Message Bus 1.4.21 (main@8f226a8)
Provides common messaging-based MEF services for loosely coupled Visual Studio extension components communication and integration.
Microsoft JVM Debugger 1.0
Provides support for connecting the Visual Studio debugger to JDWP compatible Java Virtual Machines
Mono Debugging for Visual Studio 17.6.41 (790a401)
Support for debugging Mono processes with Visual Studio.
Node.js Tools 1.5.50201.1 Commit Hash:0a76e2b03608f2fdee0e7d2e38e83d7721149b5f
Adds support for developing and debugging Node.js apps in Visual Studio
NuGet Package Manager 6.6.0
NuGet Package Manager in Visual Studio. For more information about NuGet, visit https://docs.nuget.org/
Razor (ASP.NET Core) 17.6.0.2326105+37f2727000f6a964584cafb86e69cf0b39baecb7
Provides languages services for ASP.NET Core Razor.
Test Adapter for Boost.Test 1.0
Enables Visual Studio's testing tools with unit tests written for Boost.Test. The use terms and Third Party Notices are available in the extension installation directory.
Test Adapter for Google Test 1.0
Enables Visual Studio's testing tools with unit tests written for Google Test. The use terms and Third Party Notices are available in the extension installation directory.
TypeScript Tools 17.0.20329.2001
TypeScript Tools for Microsoft Visual Studio
Visual Basic Tools 4.6.0-3.23259.8+c3cc1d0ceeab1a65da0217e403851a1e8a30086a
Visual Basic components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.
Visual F# Tools 17.6.0-beta.23174.5+0207bea1afae48d9351ac26fb51afc8260de0a97
Microsoft Visual F# Tools
Visual Studio IntelliCode 2.2
AI-assisted development for Visual Studio.
VisualStudio.DeviceLog 1.0
Information about my package
VisualStudio.Mac 1.0
Mac Extension for Visual Studio
VSPackage Extension 1.0
VSPackage Visual Studio Extension Detailed Info
Xamarin 17.6.0.251 (d17-6@318364c)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin Designer 17.6.6.0 (remotes/origin/d17-6@cb430751d1)
Visual Studio extension to enable Xamarin Designer tools in Visual Studio.
Xamarin.Android SDK 13.2.0.6 (d17-5/a200af1)
Xamarin.Android Reference Assemblies and MSBuild support.
Mono: 6dd9def
Java.Interop: xamarin/java.interop/d17-5@149d70fe
SQLite: xamarin/sqlite/3.40.1@68c69d8
Xamarin.Android Tools: xamarin/xamarin-android-tools/d17-5@9f02d77
I Have created a WPF App .NET Framework. Every time i try to debug, vs is crashing and I have all these event in the event log:
Application: devenv.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: exception code c0000005, exception address 00007FFCE0757A20
Stack:
Faulting application name: devenv.exe, version: 17.6.33717.318, time stamp: 0x6465629a
Faulting module name: ucrtbased.dll, version: 10.0.22000.832, time stamp: 0xa4cc7ab0
Exception code: 0xc0000005
Fault offset: 0x0000000000107a20
Faulting process id: 0x42b4
Faulting application start time: 0x01d98f116f859098
Faulting application path: C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\IDE\devenv.exe
Faulting module path: C:\Windows\SYSTEM32\ucrtbased.dll
Report Id: 0d980f37-ae03-43fa-b061-02952ed57f63
Faulting package full name:
Faulting package-relative application ID:
Description: A .NET application failed.
Application: ServiceHub.Host.dotnet.x64.exe
Path: C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\ServiceHub\Hosts\ServiceHub.Host.Dotnet.x64\ServiceHub.Host.dotnet.x64.exe
Message: Failed to read environment variable [DOTNET_STARTUP_HOOKS], HRESULT: 0x800700CB
Description: A .NET application failed.
Application: ServiceHub.DataWarehouseHost.exe
Path: C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\ServiceHub\Hosts\ServiceHub.Host.Dotnet.x64\ServiceHub.DataWarehouseHost.exe
Message: Failed to read environment variable [DOTNET_STARTUP_HOOKS], HRESULT: 0x800700CB
Description: A .NET application failed.
Application: ServiceHub.RoslynCodeAnalysisService.exe
Path: C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\ServiceHub\Hosts\ServiceHub.Host.Dotnet.x64\ServiceHub.RoslynCodeAnalysisService.exe
Message: Failed to read environment variable [DOTNET_STARTUP_HOOKS], HRESULT: 0x800700CB
and :
Description: A .NET application failed.
Application: ServiceHub.IndexingService.exe
Path: C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\ServiceHub\Hosts\ServiceHub.Host.Dotnet.x64\ServiceHub.IndexingService.exe
Message: Failed to read environment variable [DOTNET_STARTUP_HOOKS], HRESULT: 0x800700CB
I Run Windows 10 Pro 10.0.19045 Build 19045 with Us-English set for windows and VS2022.
Impossible to debug.
Thanks for your answer...
best Regards.
Developer technologies | Visual Studio | Debugging
Developer technologies | Visual Studio | Other
5,452 questions
{count} votes
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Tianyu Sun-MSFT 34,441 Reputation points Microsoft External Staff2023-05-26T09:57:50.46+00:00 Hello @Guillaume Bruyneel ,
Welcome to Microsoft Q&A forum.
Did you change anything like environment variables or Registry? I suggest you try to update Visual Studio to version 17.6.2, reboot your machine and check again.
Besides, did you install any extensions? Is there any limitation on your machine?
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Dmitry Gresev 15 Reputation points2023-05-26T15:56:23.4466667+00:00 Hello @Tianyu Sun-MSFT
I started receiving the same error on IIS startup for my ASP.NET Core webapps.
This began to happen after I upgraded VS to 17.6.2.
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Xavier Flix 16 Reputation points2023-05-28T13:12:57.78+00:00 I'm also getting this error.
After upgrading to 17.6.x, VS stopped working giving several errors regarding packages failing to load.
Then VS just fails with this error message:
Exception has been thrown by the target of an invocationI have an open case here:
https://developercommunity.visualstudio.com/t/Unable-to-start-VS-Community-2022-176x/10372745?viewtype=all -
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JJ 15 Reputation points2023-05-29T15:15:46.6533333+00:00 I've also started getting this crash since upgrading to 17.6.1, with DOTNET_STARTUP_HOOKS logged in event logs.
I've encountered this crash in two scenarios:
- Refactoring some code (mainly code from a method, to create a free function)
- When using some extensions such as Clang Power Tools
I have found that deleting the solutions .vs folder sometimes resolves the issue, but I have a lot of projects and VS crashing does not help my productivity.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(179.20000000000002, 28.000000000000004%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMH%3C/text%3E%3C/svg%3E)
Michael Hachen 15 Reputation points2023-05-30T05:48:19.8366667+00:00 Same problem here...
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Chrysostomos Kolovos 0 Reputation points2023-05-31T13:36:31.58+00:00 I have the same problem after upgrading to 17.6.x
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(224.00000000000003, 13%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGG%3C/text%3E%3C/svg%3E)
Guillaume Girard 0 Reputation points2023-06-01T00:26:13.85+00:00 Same issue in v17.6 but in Terminal pane when opening a "Developer PowerShell 7" terminal. Default terminal, "Developer PowerShell", does not display the same error message.
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Tianyu Sun-MSFT 34,441 Reputation points Microsoft External Staff
2023-06-01T05:39:16.2133333+00:00 Hello,
This issue is currently under investigation, here’s a similar/same ticket on our Developer Community: Failed to read environment variable [DOTNET_STARTUP_HOOKS], HRESULT:0x800700CB. Please kindly vote, add comments, follow up that ticket and wait for the latest update.
Thank you all for helping us make Visual Studio better.
Best Regards,
Tianyu
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John Ottone 0 Reputation points2023-06-02T07:13:55.3666667+00:00 See Xavior Flix open case. I posted my
solutionWORKAROUND there. Not sure if it will work for everyone. And why would you ask if people changed their registry or environment variables.. Um No Microsoft, I didnt change my Environment Variables or Registry ....DID YOU CHANGE MY ENVIRONEMENT VARIABLES OR REGISTRY??? Shouldnt Microsoft be looking at what THEY CHANGED WITHIN THE LAST TWO BUILDS that would raise this exception? Especially when there are LOTS of people posting this same bug. I mean SOMEONE that works for Microsoft has a list of exceptions, and a list of environment variables and a list of changes for the last 2 builds. -
Cinorid 0 Reputation points2023-06-21T05:39:28.2766667+00:00 Just upgraded to 17.6.4 and problem still exists!
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8 answers
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Dan Moseley 6 Reputation points Microsoft Employee2023-06-16T19:27:59.0533333+00:00 -
Chrysostomos Kolovos 0 Reputation points
2023-05-31T13:36:13.3266667+00:00 I have the same problem after upgrading to 17.6.x
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Sheraz Hussain 0 Reputation points2023-06-06T14:36:23.84+00:00 Did anyone able to find the resolution of this issue? I am unable to open Visual studio
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Sayed Mahmoud 0 Reputation points2023-06-06T21:53:17.73+00:00 Same problem here...
Visual Studio 2022 V17.6.2 -
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Bryant Byrd 0 Reputation points2023-06-09T12:18:21.37+00:00 I received the "Failed to read environment variable [DOTNET_STARTUP_HOOKS]" message when I tried to create a new project after upgrading Visual Studio to 17.6.2.
I ran a Repair of Visual Studio form the VS Installer and it's fixed now.
The Repair required a restart of my computer while the upgrade didn't. It's possible that restarting after the upgrade might be required, even though the installer doesn't request it.
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Alf Magne Meling 1 Reputation point2023-08-11T14:40:12.0533333+00:00 I did the upgrade to Visual Studio 7.6.6 and the problem got worse... Also did the fix using Visual Studio installer without any success.
Windows 10 event viewer output for this crash:
Faulting application name: devenv.exe, version: 17.6.33927.249, time stamp: 0x64c2da1b
Faulting module name: msenv.dll, version: 17.0.33927.241, time stamp: 0x64c2e4a6
Exception code: 0xc0000005
Fault offset: 0x000000000071f680
Faulting process id: 0x4c0c
Faulting application start time: 0x01d9cc60188cd654
Faulting application path: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\IDE\devenv.exe
Faulting module path: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\IDE\msenv.dll
Report Id: f7e032a5-da02-4193-a55a-417d5dd8f212
Faulting package full name:
Faulting package-relative application ID:
And the .NET runtime crash
Application: devenv.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.AccessViolationException at System.Runtime.InteropServices.CustomMarshalers.EnumeratorViewOfEnumVariant.GetEnumVariant() at System.Runtime.InteropServices.CustomMarshalers.EnumeratorViewOfEnumVariant.MoveNext() at System.Collections.IEnumerator.MoveNext() at Microsoft.DriverKit.DriverCommonPackage.CollectProjects(Boolean) at Microsoft.DriverKit.DriverCommonPackage.IsDriverProjectLoaded() at Microsoft.DriverKit.WdkTestPackage.Utilities.DriverDeployer.Exec(System.Guid ByRef, UInt32, UInt32, IntPtr, IntPtr)
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