Microsoft .Net Framework unhandled exception Category does not exist (Win Server 2019)

Question

Unhandled Exception: System.InvalidOperationException: Category does not exist.

at System.Diagnostics.PerformanceCounterLib.GetCategorySample(String machine, String category)

at System.Diagnostics.PerformanceCounterCategory.GetCounterInstances(String categoryName, String machineName)

at System.Diagnostics.PerformanceCounterCategory.GetInstanceNames()

at SuperSocket.SocketEngine.PerformanceMonitor.GetPerformanceCounterInstanceName(Process process)

at SuperSocket.SocketEngine.PerformanceMonitor..ctor(IRootConfig config, IEnumerable`1 appServers, ILogFactory logFactory)

at SuperSocket.SocketEngine.DefaultBootstrap.Initialize(Func`2 serverConfigResolver, ILogFactory logFactory)

at SuperSocket.SocketEngine.DefaultBootstrap.Initialize(Func`2 serverConfigResolver)

at SuperSocket.SocketEngine.DefaultBootstrap.Initialize()

at SocketCommunicator.Program.RunAsConsole() in C:\EWE_EmployeeAttendanceApp\EWE_EmployeeAttendanceApp\SocketCommunicator\Program.cs:line 28

at SocketCommunicator.Program.Main(String[] args) in C:\EWE_EmployeeAttendanceApp\EWE_EmployeeAttendanceApp\SocketCommunicator\Program.cs:line 20

I have tired all the solutions available online. 1. uninstall and reinstall .net framework 2. update windows 2. Scan your computer for malware 3. Troubleshooting process 4. Install the .NET Framework manually 5. Run the .NET Framework repair tool 6. Perform SFC scanning 7. Clean Clean and access Safe Mode

note that the application only not working on one device, but working on other devices without any issues

Answer 1

at System.Diagnostics.PerformanceCounterCategory.GetCounterInstances(String categoryName, String machineName)
at System.Diagnostics.PerformanceCounterCategory.GetInstanceNames()
at SuperSocket.SocketEngine.PerformanceMonitor.GetPerformanceCounterInstanceName(Process process)

That doesn't look like a DotNet problem. It looks like your program is trying to query a performance counter that does not exist.

What is the program doing?

If you run perfmon.exe can you view the counters that the program is querying?

Answer 2

Answer 3

Looks like something has corrupted your performance counters. If you click on the green plus icon, does it show any counters?

https://learn.microsoft.com/en-us/troubleshoot/windows-server/performance/manually-rebuild-performance-counters

Do you see errors in the application eventlog? You could try running the lodctr command to reload the counters.

Answer 4

Answer 5

this is capture from another machine