Visual Studio 2019 crashes every time I open it

Question

Every time I open Visual Studio 2019 Enterprise Edition, it crashes. I just looked at the event log and see this:

Log Name: Application Source: .NET Runtime Date: 9/24/2024 2:58:16 PM Event ID: 1026 Task Category: None Level: Error Keywords: Classic User: N/A Computer: MYPC.doh.nmdoh.nmsg Description: Application: devenv.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.AccessViolationException at Microsoft.Build.Execution.BuildManager.PerformSchedulingActions(System.Collections.Generic.IEnumerable1<Microsoft.Build.BackEnd.ScheduleResponse>) at Microsoft.Build.Execution.BuildManager.HandleNewRequest(Int32, Microsoft.Build.BackEnd.BuildRequestBlocker) at Microsoft.Build.Execution.BuildManager+<>c__DisplayClass96_0.<IssueBuildRequestForBuildSubmission>g__IssueBuildSubmissionToSchedulerImpl|1(Microsoft.Build.Execution.BuildSubmission, Boolean) at Microsoft.Build.Execution.BuildManager+<>c__DisplayClass96_0.<IssueBuildRequestForBuildSubmission>b__0() at Microsoft.Build.Execution.BuildManager.ProcessWorkQueue(System.Action) at Microsoft.Build.Execution.BuildManager.<BeginBuild>b__60_2(System.Action) at System.Threading.Tasks.Dataflow.ActionBlock1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].ProcessMessage(System.Action1<System.__Canon>, System.Collections.Generic.KeyValuePair2<System.__Canon,Int64>) at System.Threading.Tasks.Dataflow.ActionBlock1+<>c__DisplayClass6_0[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].<.ctor>b__0(System.Collections.Generic.KeyValuePair2<System.__Canon,Int64>) at System.Threading.Tasks.Dataflow.Internal.TargetCore1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].ProcessMessagesLoopCore() at System.Threading.Tasks.Dataflow.Internal.TargetCore1+<>c[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].<ProcessAsyncIfNecessary_Slow>b__34_0(System.Object) at System.Threading.Tasks.Task.InnerInvoke() at System.Threading.Tasks.Task.Execute() at System.Threading.Tasks.Task.ExecutionContextCallback(System.Object) at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef) at System.Threading.Tasks.Task.ExecuteEntry(Boolean) at System.Threading.Tasks.Task.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem() at System.Threading.ThreadPoolWorkQueue.Dispatch() at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback() Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name=".NET Runtime" /> <EventID Qualifiers="0">1026</EventID> <Version>0</Version> <Level>2</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2024-09-24T20:58:16.2837284Z" /> <EventRecordID>98041</EventRecordID> <Correlation /> <Execution ProcessID="28316" ThreadID="0" /> <Channel>Application</Channel> <Computer>DOH3ITHOMW002.doh.nmdoh.nmsg</Computer> <Security /> </System> <EventData> <Data>Application: devenv.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.AccessViolationException at Microsoft.Build.Execution.BuildManager.PerformSchedulingActions(System.Collections.Generic.IEnumerable1<Microsoft.Build.BackEnd.ScheduleResponse>) at Microsoft.Build.Execution.BuildManager.HandleNewRequest(Int32, Microsoft.Build.BackEnd.BuildRequestBlocker) at Microsoft.Build.Execution.BuildManager+<>c__DisplayClass96_0.<IssueBuildRequestForBuildSubmission>g__IssueBuildSubmissionToSchedulerImpl|1(Microsoft.Build.Execution.BuildSubmission, Boolean) at Microsoft.Build.Execution.BuildManager+<>c__DisplayClass96_0.<IssueBuildRequestForBuildSubmission>b__0() at Microsoft.Build.Execution.BuildManager.ProcessWorkQueue(System.Action) at Microsoft.Build.Execution.BuildManager.<BeginBuild>b__60_2(System.Action) at System.Threading.Tasks.Dataflow.ActionBlock1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].ProcessMessage(System.Action1<System.__Canon>, System.Collections.Generic.KeyValuePair2<System.__Canon,Int64>) at System.Threading.Tasks.Dataflow.ActionBlock1+<>c__DisplayClass6_0[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].<.ctor>b__0(System.Collections.Generic.KeyValuePair2<System.__Canon,Int64>) at System.Threading.Tasks.Dataflow.Internal.TargetCore1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].ProcessMessagesLoopCore() at System.Threading.Tasks.Dataflow.Internal.TargetCore1+<>c[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].<ProcessAsyncIfNecessary_Slow>b__34_0(System.Object) at System.Threading.Tasks.Task.InnerInvoke() at System.Threading.Tasks.Task.Execute() at System.Threading.Tasks.Task.ExecutionContextCallback(System.Object) at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef) at System.Threading.Tasks.Task.ExecuteEntry(Boolean) at System.Threading.Tasks.Task.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem() at System.Threading.ThreadPoolWorkQueue.Dispatch() at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback() </Data> </EventData> </Event>

What's going on? Why is VS 2019 suddenly become unreliable?

Answer 1

Hi @Falanga, Rod, DOH,

Welcome to Microsoft Q&A! 

Please try the following workarounds:

1. Update your VS2019 to the latest with Visual Studio Installer.
2. Repair the VS2019 in Visual Studio Installer > More > Repair.
3. Repair your .NET Framework by using the tool: https://learn.microsoft.com/en-us/dotnet/framework/install/repair.
4. Run “sfc /scannow” at the command prompt to repair missing or corrupted system files.
5. If you have any anti-virus software or permission management software, please temporarily disable it.

 

Sincerely,

Anna

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".  Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.