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I am working on a c# code for the last couple of weeks and I debug it very often.
VS 2019 was working properly but suddenly it got very slow and laggy when I tried to debug my code.
I checked all resources on my machine. All seem as before and are available enough.
Even I checked the same IDE with other codes. All runs and debugs fast enough as before.
I also updated my IDE to the last version (currently 16.8.5 by the end of February 2021).
Did anybody has the same experience with the VS2019 ever?
Thanks in advance.
Not sure whether the issue is caused your code with IDE environment together. Please try the following suggestions:
1) disable any third party installed extensions under Extensions-->Manage Extensions-->Installed to check whether an extension caused that.
2) reset settings under Tools-->Import and Export Settings-->Reset all settings and you can also make a backup of the settings
3) close VS, delete all files under C:\Users\xxx\AppData\Local\Microsoft\VisualStudio\16.0_xxx\ComponentModelCache
and also delete .vs hidden folder under your solution folder, bin and obj folder.
4) type devenv /safemode under Developer Command Prompt for VS to start a pure VS and then try your project.
5) create a new project with your same code and check if this works.
Besides, if all do not help, you could try a small reproducible sample with us.
If debugging suddenly becomes slow, you might consider checking your symbol settings and debugging settings. If you for example enable .NET framework source stepping, debugging can be slow, or if you do not cache symbols or disable for example Just My Code or enable other stuff, like IntelliTrace or install a bad extension.
It might not be an alternative for you, but I am pleased to inform you that I have been using Visual Studio 2022 and it is radically faster. Yes, this is not opinionated, this is an observation. It IS faster. Maybe it is because I do not have many extensions on it, but it is also a 64-bit application with less memory pressure on the GC. So you can first check your settings and then give VS 2022 Preview versions for a spin. I have used it for months and the amount of bugs are rather small if you do typically development. For a Preview version, I am impressed with what they are working for nextgen Visual Studio.
You should also clean your solution and delete and bin and obj folders via for example Powershell script to make sure your binaries are updated. Then rebuild.
If you have "live share" extension enabled, perhaps can try to disable / uninstall that. This one was causing my problem.
Ok, #Mr Qian no 3 did the trick for me.
Situation: After a "Cleanup" (Microsoft Visual Studio\Installer\InstallCleanup.exe) my VS2019 was partially gone. Good tool. :-(
After (re)install, I had 2 folders "ComponentModelCache" over 2 folders of 16.0_xxx : 16.0_4f678462 and 16.0_119826cb
I renamed both "ComponentModelCache" folders (you can delete later, when it has effect)
Build ran as never before...
Thank you, Mr Qian
My problems started as I upgraded to Visual Studio 2022 (from 2019) and upgraded to Windows 11 (naughty naughty, two major changes).
Turns out Windows Defender didn't preserve my exceptions. Using this PowerShell script as a template saved a bit of time:
https://gist.github.com/Braytiner/be2497d1a06f5a9d943dc7760693d460
Performance is back to where is was pre my Windows 11/Visual Studio 2022 upgrade.
Visual studio 2019 (16.8.5) has this problem in debugging. I have updated it into 16.11.8 and it works properly.
When I debugging in VS2013 update3, msvsmon.exe crashed when hit at a breakpoint.
It shows "The debugger's worker process (msvsmon.exe) unexpectedly exited. Debugging will be aborted".
I'm not using remote debug.
Is it possible to shut down the msvsmon.exe to avoid calling it when debugging ?
Deleting all of the breakpoints solves the problem when I hit this error. Disabling the breakpoints was not enough - they had to be deleted.
I was able to attach to a process numerous times. Once I added a conditional breakpoint (with a few checks), I started getting this error when attempting to attach to that same process.
The error provided in the question is one problem. I also received an error stating that a debugger was already attached when I tried again. Either way, deleting breakpoints solved it.
Try turning on Options > Debugging > General > "Use Managed Compatibility Mode"
I got this error/crash too while debugging and trying to inspect a variable with 50 MB of text data in it. This option worked in both VS2013 and in VS2015 to allow me to debug and inspect the variable with large data.
A couple of things that worked for me:
Try Closing VStudio and relaunching.
If not, reboot helps.[I know thats generic, but its worth a shot]
Disable unnecessary break points.
I had this error also, and I too have Astrill installed. Completely uninstalling Astrill fixed the issue.
I reached out to Astrill support, and they answered (within 2 hours) saying the correct fix is to hold Ctrl and press the "Help" button on the Astrill application, and then choose "Uninstall LSP". This has fixed the issue without needing to un-install Astrill.
I don't know what LSP is, but I presume it's some sort of proxy.
In my case, it was caused by a VPN software. It changed my hosts file and my localhost was not 127.0.0.1 anymore.
So check your localhost in the hosts file (e. g. %WINDIR%\System32\drivers\etc\hosts) and make sure it is 127.0.0.1.
This error just occurred for me with visual studio 2015 RTM. Deleting all the breakpoints resolved the "The debugger's worker process (msvsmon.exe) unexpectedly exited. Debugging will be aborted" condition.
So If you clear all your breakpoints, in your version, you will not need to avoid using MSVSMON.exe.
I was using the OzCode debugger extension. Unfortunately they don't have a way to completely disable the extension - you can only disable certain features - so I had to completely uninstall it to confirm it was what was contributing to the crashes.
I got the same error. No effect after deleting all breakpoints and repairing Visual Studio (I have 2013 Community Edition). The problem was the Bitdefender software. I have Bitdefender Internet Security 2016 and had set Active Thread Control (Modules->Antivirus) to Normal level. But after setting this settings to Permissive the error doesn't show up anymore.
This error occured to me, when I tried to debug with Visual Studio / Service Pack 3, when Service Pack 4 was already released. After updating to the Service Pack 4 I was able to debug.
So, try installing the newest version of Visual Studio
Regards
This (or something that manifests in exactly the same way) is still an issue in VS2017. In my case it was caused by a dependency being too large to debug. The dependency in question was a generated client for a large REST API. I was able to debug again after slimming down that dependency.
Here's yet another answer: I changed my project from "Platform Target: Any CPU" to "Platform Target: x86". Went from needing about 5 attempts to debug to working every single time.
I had previously tried every suggestion in this thread: I reinstalled, I killed all breakpoints, and looked for fishy software interactions.
I started getting this exact error today in my VS2019 project. Attempting to expand/inspect simple data structs in VS debugger would make it freeze for a minute and then I'd get that "The debugger's worker process (msvsmon.exe) unexpectedly exited. Debugging will be aborted" message:
If I add msvsmon.exe process to windows defender exclusions list, then the problem disappears.
I hit this in Visual Studio 2019 (16.4.3) (C++) with a cause that I have not seen mentioned: I had accidentally added a Watch with incorrect syntax that was attempting to instantiate a singleton rather than returning the existing instance.
Repeatedly choosing right click > Clear All in the Watches view while debugging fixed the issue.
Fixed by changing Options->Projects and Solutions->Web Projects -> Use 64bit version of IIS......... to False.
In my case i am using the wcf Service on the wpf application and inputting parameters from here.The Wpf Application Execution on Facing this error "The debugger's worker process (msvsmon.exe) unexpectedly exited. Debugging will be aborted".
That case i am hosing the Wcf service and run the wpf application exe
In this type of Execution on I didn't Facing any Error like -- "The debugger's worker process (msvsmon.exe) unexpectedly exited. Debugging will be aborted"
please,try this proceed error solved because some execution process didn't supporting the debugging..... we are removing the Debuggers on also we face same error.
that case on helped this process.......
I just experience this with VC2017 Community Edition 15.7.2. Turning off the Microsoft Symbol Server lookup while debugging fixed it for me.
I've just had the problem in VS 2015. I hadn't noticed that one of my breakpoints was bogus - I had inadvertently pressed F9 to set a breakpoint when the disassembly window was showing in the previous debugging session. The solution was simply to delete that one bogus breakpoint - I got to keep all my others.
I tried almost every answer in here, but for my case, nothing worked.
Switching to 32-bit just made Visual Studio 2019 crash instead of msvsmon.exe crashing.
What did work for me is to set a very early breakpoint and use that opportunity to close the "Parallel Stacks" window. I didn't need that anyway, but it was open by default in my layout.
In my case, I had this error when I had the "Locals" tab opened during debugging and hitting a breakpoint. For some reason VS might've been unable to display one of the local variables. The error disappeared when switched to a different tab before hitting the breakpoint where the error was occurring.
My problems started after moving a project to a new folder. I wasn't having any luck with any of these answers using VS2019. I even deleted the entire .vs folder thinking maybe something got corrupted. No luck.
But on a whim I tried starting the project with CTRL-F5 instead of just F5 and that actually worked. It's consistent. CTRL-F5 runs fine. F5 gives me the msvsmon.exe error.
I have no idea what's going on, but at least I can get the project to run again.
This problem is at least 1 1/2 years old maybe more. Today is 6-11-22 and I have the problem in Ms Studio Pro 2022 with a fresh install of windows 11 not much of anything else in the computer. Then I uninstalled it and install Ms Studio Community 2022 put in 1 breakpoint at the beginning and I got the error.
Today 6-12-22 I reinstall Ms Studio Community 2022. For some reason I switch from x86 to x64 went through a about 1000 changes of errors and a crashed form1.resx file thank goodness for a backup I had or I'd be done again. anyways so far have several break points with no problems.
I deleted all my watch variables. That fixed the problem for me.
I know it doesn't directly address the error, but as a workaround, I'm using the Rider IDE from JetBrains, and am not encountering the error (code, system, etc. the same).
Visual Studio version: Professional 2017, 15.5.4
Rider version: 2017.3
None of the other answers worked for me, when I encountered this error. If you are not actually remotely debugging, you can use another editor until you figure out the problem or it resolves itself (the latter was the case for me).
I have a Visual Studio 2010 solution containing several C# projects, with Resharper 5.1 installed and enabled. All these projects target the .NET Framework 4.
This solution has been working fine for months, but this morning I got the following message when the solution was loaded:
I've looked around for an explanation on the meaning of this message, but with little luck.
Additionally, I haven't been able to repro this error, and it doesn't seem to have broken anything on my project.
Still, I don't like these kind of unexplained errors, so I was wondering if anyone reading this knows the root cause?
Hmm, that's special. It must be a debugger notification, the part of VS that 'attaches' and makes "Managed" a category. The other category is "Unmanaged", a different kind of debugger interface. It clearly lost its marbles there.
Counter-measures, in order, are:
Restart VS.
Reboot
Install Service Pack 1, it has many debugger fixes.
Consider moving 3 up the list if you haven't installed it yet, there are a ton of bug fixes and tweaks and works well.
In Visual Studio 2012 and Windows 8.1, I had this problem,I changed X86 from Solution Properties/Build/Platform target then my problem resolved.
This has been nagging me for a while. Finally I found a solution.
When I press the help button they suggest I sort out the attached debug option. Without any result I finally managed to check the Enable SQL Server Debugging option under Project Properties - Debug.
I have the exact same setting as you: VS2010 with several C# projects pointing to Net 4 and Resharper 5.1. I'm on Windows XP SP3
I was getting the exact same error, along with an empty VS icon in the taskbar.
The empty icon got away when I shifted VS to my main monitor (I have 2) and restarted. It seems that VS doesn't like to be in the second monitor.
As for your error, I cleaned up the Resharper cache (I'm storing it in the TEMP folder, not the solution folder) restarted, and didn't get the error again
In Debug Menu - GoTo Solution Properties and select debug tab and tick the ENABLE SQL SERVER DEBUGGING checkbox
I've been running Visual Studio 2010 (the official release) for some time now. Lately, VS will crash 10+ times during my 8 hour work day. In VS2008, crashes were common when working with large Xaml files, and while I experience some of that with VS2010, crashes occur when debugging, starting the debugger, stopping the debugger, and other random times when editing code.
I've looked through the problem reports, and the one I've found that occurs most frequently is:
Description
Faulting Application Path: C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe
Problem signature
Problem Event Name: APPCRASH
Application Name: devenv.exe
Application Version: 10.0.30319.1
Application Timestamp: 4ba1fab3
Fault Module Name: ntdll.dll
Fault Module Version: 6.1.7600.16385
Fault Module Timestamp: 4a5bdb3b
Exception Code: c0000005
Exception Offset: 0002e23e
I'm running Windows 7 (x64). Hoepfully someone has come across this problem and has found a solution. I plan on reinstalling VS2010. Hopefully that takes care of the problem.
Do you think you have installed any extra Extensions which might lead to frequent crashes?
You can try
Devenv.exe /SafeMode
to start in Safe mode. You can also try
Devenv.exe /Log
Which will log all activity. Have not tried this so don't know What activities are logged.
Visual Studio 2010 Command Line Switches
I was having a similar problem and this helped me
http://connect.microsoft.com/VisualStudio/feedback/details/618802/visual-studio-random-frequent-crash
Running this from the command prompt seemed to fix it. It hasn't crashed for the whole day today.
regsvr32 c:\Windows\System32\ole32.dll
I had similar issues with Visual Studio. The problem was the service pack which for some reason was not installed properly.
I had to reapply the SP1 using the Repair / reapply option. This kind of fixed my issue.
Also make sure to reboot the system.
Just to help people who search it: It was webex instant messenger related part, but not Cisco itself. The cause was a component in Studio Power Tools relevant to integration with messenger. Reinstall power tools but without messaging integration.
In other occasion it is almost always a corporate antivirus authentication helper thing. It required to manually remove registry entries which cause background TFS logins break the studio at random moments.
I had the "Microsoft Visual Studio 2010 has stopped working" error, imediately when Visual Studio 2010 was starting. Fault module was clr.dll in my case. Only rebooting helped sometimes.
I solved it by removing .NET completely and reinstalling it.
Be aware that if you updated to .NET 4.5 this includes .NET 4, so you have to remove and reinstall .NET 4.5
I know why it could be crashing. Code it self. Have you tried to debug the failed instance of VS2010 with Vs2010? If the xaml designer crashed anywhere in your code you should be able to see the stack trace. Also, try to load the same xaml into Blend 4 and then run the vs2010 on Blend when that crashes. I've had some good results debugging Vs2010 crashes like that.
There are so many things that can cause studio to crash.
I'd look at everything from video card drivers to whether the RAM is stable.
Note, there is a microsoft connect but on this exact issue at: http://connect.microsoft.com/VisualStudio/feedback/details/634162/devenv-exe-frequent-intermittent-crashes-fault-module-name-ntdll-dll
You might vote on it or add your own information to the report but the very first thing I'd do is update my video drivers. One place I was at had a lot of issues with 2005; it would randomly crash just displaying the design surface or when opening a few too many code files; but once we got decent video cards and the appropriate drivers installed it worked flawlessly.
I disabled “Options"-"Evnironment"-"Add-in/Micros Security"->"Allow macros to run", and fixed the problem.
I think I just solved a similar issue on my computer, but probably not the same cause. It was related to TortoiseSVN (I think visual loads the tortoise DLL because it is integrated with the explorer, even if I don't have a specific visual studio plug-in). I upgraded TortoiseSVN (from 1.7.8 to 1.7.11) and it didn't crash for a few hours (I also had a 100% repro case when closing visual studio which does not happen anymore). Maybe there is some way to check what DLLs are loaded by visual studio to troubleshoot what are the candidates for upgrading/uninstalling, but I didn't go this far.
Hope it can help someone else.
While developing C++ code, Visual Studio 2010 started crashing frequently and at random times after I enabled the Task List.
As an alternative to using the Task List, I am now simply using the Find in Files tool (Ctrl+Shift+F) and searching for the string TODO as an alternative.
i was having a similar problem. visual studio 2010 was crashing. when i attached, it said it had a read access violation in ntdll.dll
closed all my open instances (there were 5) and it stopped happening.
Today I had this error, in my case it was because Microsoft released the update (KB2858725) the FrameWork 4.5.1, which the download and installed,
However this is definitely addressed by performing the following steps:
FrameWork 4.5.1 download (KB2858728) => NDP451-KB2858728-x86-x64-ENU.exe-Allos
http://www.microsoft.com/en-us/download/details.aspx?id=40779
Install the downloaded software (KB2858728)
Try Vs, but give the same error.
Uninstall the downloaded software (KB2858728)
(this task fully cleaned upgrade giving problems (KB2858725)
Install the downloaded software (KB2858728) again
Try Vs, this time if it will work
NOTE: NEVER! install update (KB2858725)
Logging helps indeed. I have the same problem with crashes. Since there could be numerous reasons and lots of log data, I wrote this .bat (Win7 x64, VS2010 Express) to keep logs organized and easy to analyze:
#echo off
rem date and time in format YYYYMonDD_hhmmss
set year=%DATE:~-4%
set month=%DATE:~3,2%
set day=%DATE:~0,2%
IF %month%==01 set monthstr=Jan
IF %month%==02 set monthstr=Feb
IF %month%==03 set monthstr=Mar
IF %month%==04 set monthstr=Apr
IF %month%==05 set monthstr=May
IF %month%==06 set monthstr=Jun
IF %month%==07 set monthstr=Jul
IF %month%==08 set monthstr=Aug
IF %month%==09 set monthstr=Sep
IF %month%==10 set monthstr=Oct
IF %month%==11 set monthstr=Nov
IF %month%==12 set monthstr=Dec
set now=%TIME:~0,-3%
set now=%now::=%
set now=%now: =0%
set now=%year%%monthstr%%day%_%now%
start "VS2010 express" "C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\VCExpress.exe" /Log "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VSlogs\VS_log_%now%.txt"
I had the same problem. I cleared my settings. Configured environment to use C# development settings. Then i disabled all extensions against which disable button was present. I enabled them one by one while opening, running and closing solutions. I found the offending extension to be .Net reflector v 8.5.0.179 by red gate. I had VS2010, VS2012 and VS2013 all installed on my windows 8.1 enterprise 64bit. All of them had the same issue. Whenever i closed the solution VS would crash. Hope it helps.
I've had a serious issue with my Visual Studio 2008 setup. I receive the ever-so-useful error 'A problem has been encountered while loading the setup components. Canceling setup.' whenever I try to uninstall, reinstall or repair Visual Studio 2008 (team system version). If I can't resolve this issue I have no choice but to completely wipe my computer and start again which will take all day long! I've recently received very strange errors when trying to build projects regarding components running out of memory (despite having ~2gb physical memory free at the time) which has rendered my current VS install useless.
Note I installed VS2005 shell version using the vs_setup.msi file in the SQL Server folder after I had installed VS2008, in order to gain access to the SQL Server 2005 Reporting Services designer in Business Intelligence Development Studio (this is inexplicably unavailable in VS2008).
Does anyone have any solutions to this problem?
P.S.: I know this isn't directly related to programming, however I feel this is appropriate to SO as it is directly related to my ability to program at all!
Note: A colleague found a solution to this problem, hopefully this should help others with this problem.
A colleague found this MS auto-uninstall tool which has successfully uninstalled VS2008 for me and saved me hours of work!!
Hopefully this might be useful to others. Doesn't speak highly of MS's faith in their usual VS maintenance tools that they have to provide this as well!
I had the same error message. For me it was happening because I was trying to run the installer from the DVD rather than running the installer from Add/Remove programs.
In my case, uninstalling from Add&Remove Programs didn't work. Instead, the problem was due to a recently hotfix installed through automatic updates. The hotfix to VS 2008 (in my case) has the number KB952241, so I uninstalled it using Add/Remove Programs checking on the show updates option. After it was unistalled the problem was gone.
I encountered the same problem and found a very easy solution.Go to the following Link:
http://msdn.microsoft.com/en-us/vs2008/bb968856.aspx
and run VS AutoUninstall tool .This will automatically remove all the components of VS 2008.
Cheers
Sure enough, for me, it was the hotfixes. In Add/Remove Programs, check the "Show Updates" box, and remove ALL of the Hotfixes associated with your version of VS2008. Then try the "Change/Remove" button - it should now proceed without a hitch.
Well, it did for me, anyway... ;-)
I have Visual Studio Team System 2008 Development Edition, and had to remove all updates and Hotfixes:
Update KB972221
Hotfix KB973674
Hotfix KB971091
Reboot, then the following Hotfix appeared, which I then removed as per #riaraos' answer:
Hotfix KB952241
Before the Change/Remove would work!
Hope that helps someone else.
Uninstall hotfixes installed in related to vs2008 and then try again.
It worked for me and hopefully it will for you as well.
Thanks,
Zelalem
Remove the following hot fixes and updates
Update KB972221
Hotfix KB973674
Hotfix KB971091
Restart the PC and try to uninstall now. This worked for me without problems.
Microsoft itself posted a KB article about this, and that article has a service pack that they claim fixes the problem. See below.
http://support.microsoft.com/kb/959417/
It took a while for the associated update to install itself, but once it did, I was able to run the Visual Studio setup successfully from the Add/Remove Programs control panel.
You should look for the MSI setup logs in the temp directory of your system. They will contain detailed inforamtion about why the setup failed.
I had a similar installation problem with Visual Studio 2008 which I was able to resolve by studying the logs.
I think this sort of question is entirely appropriate to the forum, especially if an easy solution can be found, as would save others hours of pain.
Unfortunately I dont have the solution, but would suggest (if you haven't already)
Run FileMon to see if the
installer is looking for specific
files which are no longer there -
this may give some clues.
Painful, but try uninstalling other apps based upon the VS shell (eg 2005) first.
Thanks, riaraos, uninstalling KB952241 was the solution for me, too. Before doing that I tried to run the installer from "Programs and Features" and from the installation DVD without success. I did not want to completely remove the VS 2008 installation but only add a few components.
Notes on my system:
Windows 7 Beta 1
Visual Studio 2008 SP1
Okay I had the same issues first my VS2008 was acting up so i tried to uninstall it and it didn't work...I read online that using an AutoUninstall by MS will do the trick it did just that , but left a lot of nasty files behind..
So i used "Windows Install Clean Up" and cleaned up more stuff that had to do with VS..
then went back into Add and remove in control panel Removed the KB952241...
then opened up Ccleaner and scanned the registry found a lot of left behind crap from VB2008 removed all that once that was done.
I went ahead and launch the installed back from the CD again and BAM its working.
I did all this without having to restart my PC..
Hope this helps people who are stuck..like i was
In my case, installing visual studio SP1 unbroke the uninstall/repair functionality.
Windows 7 suggested to "Uninstall using recommended settings" after hitting OK in the error message. It solved the problem.
Solution to this is
http://www.dotnetzone.gr/cs/forums/48758/ShowThread.aspx#48758