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I'm working on a Asp.net web application code base and I have installed OpenCover 4.7.1221 version and using command prompt Administrator mode I executed a command to generate a code coverage report in a Windows Server 2012 R2 server and after few minutes it gives worker process crashed error and it also covers part of the code until that error occurs.I have executed same command against same code base in my windows 10 machine and it works fine and OpenCover generated a complete report.

Executed command : OpenCover.Console.exe -target:C:\Windows\System32\inetsrv\w3wp.exe -targetDir:"C:\Projects\Application\src\Application.Web\Bin" -targetargs:-debug -register:Path64 -output:"C:\Users\User1\Desktop\Opencover report\results.xml" -communicationtimeout:10000000

Error Message

charitht99 perera
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  • We can't help you without seeing the full saved error details. The `APPCRASH` event name suggests it's just an unhandled exception - (if WebForms) don't you have a `Global.asax` global error handler or an `AppDomain.Current.UnhandledException` handler? – Dai Feb 02 '22 at 04:14
  • yes this is a WebForms application Global.asax is there but since this is working fine in Windows 10 machine is it possible to have unhandled exceptions – charitht99 perera Feb 02 '22 at 04:27
  • But you shouldn't be having _any_ unhandled exceptions though. – Dai Feb 02 '22 at 04:28
  • Yes I added log to the Application_Error method in Gloabl.asax then executed the command again , No error logged – charitht99 perera Feb 02 '22 at 05:53
  • Add a handler to `AppDomain.Current.UnhandledException` - and also consider implementing a handler for `AppDomain.Current.FirstChanceException` which simply performs _unbuffered_ disk/log-file exception logging - that'll help pin things down too. – Dai Feb 02 '22 at 08:46
  • Also, check your Windows Event Logs (especially the Application log) as that will contain two or three separate logged events for every fatal .NET Framework app-crash (look for EventId `1026` from _.NET Runtime_ and EventId `1000` from _Application Error_, and EventId `1001` from _Windows Error Reporting_. The most useful one is the `1026` event as that should contain a .NET exception stack-trace. – Dai Feb 02 '22 at 08:50
  • Event log -Faulting application name: w3wp.exe, version: 8.5.9600.16384, time stamp: 0x5215df96 Faulting module name: msvcrt.dll, version: 7.0.9600.17415, time stamp: 0x545055fe Exception code: 0xc0000005 Fault offset: 0x0000000000005561 Faulting process id: 0x2524 Faulting application start time: 0x01d81801bb9098a5 Faulting application path: C:\Windows\System32\inetsrv\w3wp.exe Faulting module path: C:\Windows\system32\msvcrt.dll Report Id: 7b208385-83f5-11ec-8105-005056a4d0bf Faulting package full name: Faulting package-relative application ID: – charitht99 perera Feb 02 '22 at 10:14

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