ASP.NET Debugging No Longer Working

[weinand]

From @robbpriestley on July 8, 2016 2:29

• VSCode Version: 1.3.0
• OS Version: OSX El Cap 10.11.5
• .NET Core Version: 1.0.0-preview2-003121

Steps to Reproduce:

1. As normal, use debugger for ASP.NET debugging
2. Upgrade VS Code from 1.2.1 to 1.3.0
3. Debugging no longer works. Error message given in VS Code debug console window:

ERROR: CLRDBG exited unexpectedly with exit code 133 (0x85). Debugging will now abort.
The program '/Users/Me/MyPath/MyProgram.dll' has exited with code -1 (0xffffffff).

I re-installed .NET Core just to be on the safe side--no difference. I was already running the latest version. I also noticed after I installed the new version of VS Code that a background process re-installed the debug module (? details hazy--I just saw it on the status bar on the bottom of the screen).

Copied from original issue: microsoft/vscode#8879

[ruicraveiro]

Hi, exactly the same thing happening to me.

[caslan]

@ruicraveiro What is the CSharp extension version you are using?

[ruicraveiro]

Hi Cagri, I'm using 1.2.2. Any other information you might need, please ask.

[ruicraveiro]

When trying to run using .net core launch, I get exactly the same error as Weinand's. Adding to that, on the extension output I get: waiting for v8 protocol on stdin/stdoutwaiting for v8 protocol on stdin/stdout.

I also tried to run the app via command line and attach the debugger to it. When attaching it also fails, but this time, the message I get is one of those popups saying "Debug adapter process has terminated unexpectedly". I also get a message in the extension log saying:

waiting for v8 protocol on stdin/stdoutwaiting for v8 protocol on stdin/stdoutwaiting for v8 protocol on stdin/stdout
Unhandled Exception: System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'WorkerThread'.
at Microsoft.MIDebugEngine.WorkerThread.PostOperation(Operation op)
at Microsoft.MIDebugEngine.DebuggedProcess.<>c__DisplayClass53_0.<.ctor>b__2(Object o, EventArgs args)
at MICore.Debugger.d__118.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<>c.b__6_1(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.QueueUserWorkItemCallbackDefaultContext.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()

[caslan]

@ruicraveiro, the same scenario doesn't reproduce here for us, so we will need to see what's going on from the logs. Can you add the following in your launch.json configuration:

"logging" : {
"engineLogging" : true,
"trace": true,
"traceResponse" : true
}

and send us what you get in the debug console? (You can send to [email protected] if you prefer) There must be an error we are running into before the ObjectDisposedException error.

[ruicraveiro]

Here goes (with some paths replaced by [undisclosed]:

1: (487) LaunchOptions<LocalLaunchOptions xmlns='http://schemas.microsoft.com/vstudio/MDDDebuggerOptions/2014'
1: (517) LaunchOptions ExePath='dotnet'
1: (517) LaunchOptions WorkingDirectory='/Users/ruicraveiro/Sources/customers/[undisclosed]/[undisclosed]Backend/src/[undisclosed]Backend'
1: (517) LaunchOptions ExeArguments='/Users/ruicraveiro/Sources/customers/[undisclosed]/[undisclosed]Backend/src/[undisclosed]Backend/bin/Debug/netcoreapp1.0/[undisclosed]Backend.dll'
1: (517) LaunchOptions MIDebuggerPath='/Users/ruicraveiro/.vscode/extensions/ms-vscode.csharp-1.2.2/coreclr-debug/debugAdapters/clrdbg'
1: (517) LaunchOptions MIMode='clrdbg'
1: (517) LaunchOptions>
1: (517) LaunchOptions
1: (1231) Starting: "/Users/ruicraveiro/.vscode/extensions/ms-vscode.csharp-1.2.2/coreclr-debug/debugAdapters/clrdbg" --interpreter=mi
1: (1280) DebuggerPid=7580
1: (1282) ->(gdb)
1: (1329) <-1001-exec-arguments /Users/ruicraveiro/Sources/customers/[undisclosed]/[undisclosed]Backend/src/[undisclosed]Backend/bin/Debug/netcoreapp1.0/[undisclosed]Backend.dll
1: (1333) ->1001^done
1: (1334) ->(gdb)
1: (1338) 1001: elapsed time 9
1: (1341) <-1002-environment-cd /Users/ruicraveiro/Sources/customers/[undisclosed]/[undisclosed]Backend/src/[undisclosed]Backend
1: (1342) ->1002^done
1: (1342) ->(gdb)
1: (1342) 1002: elapsed time 0
1: (1342) <-1003-gdb-set client-version "14.0.30629.1"
1: (1342) ->1003^done
1: (1342) 1003: elapsed time 0
1: (1343) <-1004-gdb-set client-ui "VSCode"
1: (1343) ->(gdb)
1: (1343) ->1004^done
1: (1343) ->(gdb)
1: (1343) 1004: elapsed time 0
1: (1343) <-1005-file-exec-and-symbols dotnet
1: (1343) ->1005^done
1: (1343) ->(gdb)
1: (1343) 1005: elapsed time 0
1: (1344) <-1006-break-insert main
1: (1344) ->1006^error,msg="-break-insert currently only supports file/line breakpoints"
1: (1344) ->(gdb)
1: (1351) 1006: elapsed time 7
1: (1374) <-1007-gdb-set just-my-code 1
1: (1374) ->1007^done
1: (1374) ->(gdb)
1: (1375) 1007: elapsed time 1
E initialized: {"type":"initialized"}
E output: {"category":"telemetry","output":"VS/Diagnostics/Debugger/Launch","data":{"VS.Diagnostics.Debugger.ImplementationName":"Microsoft.MIDebugEngine","VS.Diagnostics.Debugger.EngineVersion":"14.0.30629.1","VS.Diagnostics.Debugger.HostVersion":"1.0.20628.1","VS.Diagnostics.Debugger.AdapterId":"coreclr","VS.Diagnostics.Debugger.Launch.Duration":1178,"VS.Diagnostics.Debugger.Launch.IsCoreDump":false},"type":"output"}
R: {"success":true,"message":null,"request_seq":2,"command":"launch","body":null,"running":false,"refs":null,"seq":0,"type":"response"}
C setExceptionBreakpoints: {"filters":["all","user-unhandled"]}
R: {"success":true,"message":null,"request_seq":3,"command":"setExceptionBreakpoints","body":{},"running":false,"refs":null,"seq":0,"type":"response"}
C configurationDone: null
R: {"success":true,"message":null,"request_seq":4,"command":"configurationDone","body":null,"running":false,"refs":null,"seq":0,"type":"response"}
1: (1503) <-1008-break-exception-insert throw+user-unhandled *
1: (1503) ->1008^done,bkpt=[{number="1"}]
1: (1503) ->(gdb)
1: (1511) 1008: elapsed time 8
1: (1527) <-1009-break-exception-insert --mda throw+user-unhandled *
1: (1528) ->1009^done,bkpt=[{number="2"}]
1: (1528) ->(gdb)
1: (1528) 1009: elapsed time 0
1: (1531) <-1010-exec-run
1: (1765) ->=telemetry,event-name="VS/Diagnostics/Debugger/clrdbg/ProcessCreate",properties={VS.Diagnostics.Debugger.clrdbg.Version="14.0.25430.0 built by: CLRDBG",VS.Diagnostics.Debugger.clrdbg.OSFamily="Darwin",VS.Diagnostics.Debugger.clrdbg.KernelRelease="15.5.0"}
1: (1766) ->1010^running
1: (1766) ->(gdb)
E output: {"category":"telemetry","output":"VS/Diagnostics/Debugger/clrdbg/ProcessCreate","data":{"VS.Diagnostics.Debugger.clrdbg.Version":"14.0.25430.0 built by: CLRDBG","VS.Diagnostics.Debugger.clrdbg.OSFamily":"Darwin","VS.Diagnostics.Debugger.clrdbg.KernelRelease":"15.5.0"},"type":"output"}
1: (1776) 1010: elapsed time 245
1: (2069) STDERR: dyld: lazy symbol binding failed: Symbol not found: _GetProcessIdDisambiguationKey
1: (2069) STDERR: Referenced from: /usr/local/share/dotnet/shared/Microsoft.NETCore.App/1.0.0-rc2-3002702/libmscordbi.dylib
1: (2069) STDERR: Expected in: /Users/ruicraveiro/.vscode/extensions/ms-vscode.csharp-1.2.2/coreclr-debug/debugAdapters/libmscordaccore.dylib
1: (2069) STDERR: dyld: Symbol not found: _GetProcessIdDisambiguationKey
1: (2069) STDERR: Referenced from: /usr/local/share/dotnet/shared/Microsoft.NETCore.App/1.0.0-rc2-3002702/libmscordbi.dylib
1: (2069) STDERR: Expected in: /Users/ruicraveiro/.vscode/extensions/ms-vscode.csharp-1.2.2/coreclr-debug/debugAdapters/libmscordaccore.dylib
1: (2176) "/Users/ruicraveiro/.vscode/extensions/ms-vscode.csharp-1.2.2/coreclr-debug/debugAdapters/clrdbg" exited with code 133 (0x85).
1: (2183) <-logout
E output: {"category":"telemetry","output":"VS/Diagnostics/Debugger/MIEngine/DebuggerAborted","data":{"VS.Diagnostics.Debugger.MIEngine.DebuggerName":"CLRDBG","VS.Diagnostics.Debugger.MIEngine.LastSentCommandName":"-exec-run","VS.Diagnostics.Debugger.MIEngine.DebuggerExitCode":"133 (0x85)","VS.Diagnostics.Debugger.clrdbg.Version":"14.0.25430.0 built by: CLRDBG","VS.Diagnostics.Debugger.clrdbg.OSFamily":"Darwin","VS.Diagnostics.Debugger.clrdbg.KernelRelease":"15.5.0"},"type":"output"}
E output: {"category":"console","output":"ERROR: CLRDBG exited unexpectedly with exit code 133 (0x85). Debugging will now abort.\n","data":null,"type":"output"}
ERROR: CLRDBG exited unexpectedly with exit code 133 (0x85). Debugging will now abort.
E output: {"category":"console","output":"The program '/Users/ruicraveiro/Sources/customers/[undisclosed]/[undisclosed]Backend/src/[undisclosed]Backend/bin/Debug/netcoreapp1.0/[undisclosed]Backend.dll' has exited with code -1 (0xffffffff).\r\n\n","data":null,"type":"output"}
The program '/Users/ruicraveiro/Sources/customers/[undisclosed]/[undisclosed]Backend/src/[undisclosed]Backend/bin/Debug/netcoreapp1.0/[undisclosed]Backend.dll' has exited with code -1 (0xffffffff).
E exited: {"exitCode":-1,"type":"exited"}
E terminated: {"type":"terminated"}
E output: {"category":"telemetry","output":"VS/Diagnostics/Debugger/DebugCompleted","data":{"VS.Diagnostics.Debugger.ImplementationName":"Microsoft.MIDebugEngine","VS.Diagnostics.Debugger.EngineVersion":"14.0.30629.1","VS.Diagnostics.Debugger.HostVersion":"1.0.20628.1","VS.Diagnostics.Debugger.AdapterId":"coreclr","VS.Diagnostics.Debugger.DebugCompleted.BreakCounter":0},"type":"output"}
C disconnect: {"restart":false}
R: {"success":true,"message":null,"request_seq":5,"command":"disconnect","body":null,"running":false,"refs":null,"seq":0,"type":"response"}

[caslan]

@ruicraveiro it looks like your app is referencing RC2 runtime. CSharp extension no longer supports debugging that. Is it possible for you to move to RTM and try again?

[ruicraveiro]

Hi Cagri, that was the problem. Everything's working now. Thanks!

[caslan]

Excellent, let us know if you run into further issues.

[robbpriestley]

I completely updated all my project.json dependencies to the latest versions (mostly 1.0.0 now!) and as well followed the instructions here: https://docs.efproject.net/en/latest/miscellaneous/rc2-rtm-upgrade.html#net-core-remove-imports-in-project-json

It took a while, but I got everything working again!