Debugging hangs

[natalie-o-perret]

Describe the bug I am using Ionide with Visual Studio Code running under Manjaro.

I have simple project with only one single file Program.fs:

[<EntryPoint>]
let main argv =
    printfn "Hello World from F#!"
    0

When cliking on running the project, it works just fine: Hello World from F#! is printed in the console and then the program quits, just like expected. But clicking on debugging the debugger hangs (can see the debug toolbar) but the program is not executed.

I would like to point out that omnisharp debugging works just fine with C# projects.

To Reproduce Steps to reproduce the behaviour:

1. Go to Ionide tab
2. Click on Debug Default Project
3. See that the debug bar has shown up but the program is not debugged and not running

Expected behaviour A clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

Environment (please complete the following information):

• OS: Manjaro

  $ screenfetch 
  
  ██████████████████  ████████     perret@perret-pc
  ██████████████████  ████████     OS: Manjaro 18.0.4 Illyria
  ██████████████████  ████████     Kernel: x86_64 Linux 5.3.0-1-MANJARO
  ██████████████████  ████████     Uptime: 47m
  ████████            ████████     Packages: 1463
  ████████  ████████  ████████     Shell: bash 5.0.7
  ████████  ████████  ████████     Resolution: 1280x720
  ████████  ████████  ████████     DE: Xfce4
  ████████  ████████  ████████     WM: Compiz
  ████████  ████████  ████████     WM Theme: Adapta-Maia
  ████████  ████████  ████████     GTK Theme: Adapta-Maia [GTK2]
  ████████  ████████  ████████     Icon Theme: Papirus-Maia
  ████████  ████████  ████████     Font: Noto Sans 10
  ████████  ████████  ████████     CPU: Intel Core i7-6500U @ 4x 3.1GHz [44.0°C]
                                GPU: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) 
                                RAM: 2949MiB / 7431MiB

• Ionide version: 4.0.6

• VSCode version: 1.37.1

• dotnet SDK version:

  $ dotnet --version
  2.2.108

• mono / .Net Framework version:

  $   mono --version
  Mono JIT compiler version 5.20.1 (makepkg/886c4901747 Wed Apr 17 15:49:14 UTC 2019)
  Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
  TLS:           __thread
  SIGSEGV:       altstack
  Notifications: epoll
  Architecture:  amd64
  Disabled:      none
  Misc:          softdebug 
  Interpreter:   yes
  LLVM:          supported, not enabled.
  Suspend:       hybrid
  GC:            sgen (concurrent by default)

[open-collective-bot[bot]]

Hey @ehouarn-perret :wave:,

Thank you for opening an issue. We will get back to you as soon as we can. Also, check out our OpenCollective and consider backing us.

https://opencollective.com/ionide

PS.: We offer backer support for all backers. Don't forget to add backer label when you start backing us :smile:

[m0rphed]

Same behavior on Arch Linux with vscode-oss :disappointed:

~ » dotnet --info
.NET Core SDK (reflecting any global.json):
 Version:   3.1.201
 Commit:    b1768b4ae7

Runtime Environment:
 OS Name:     Ctlos
 OS Version:  net-1.0_20200407
 OS Platform: Linux
 RID:         linux-x64
 Base Path:   /usr/share/dotnet/sdk/3.1.201/

Host (useful for support):
  Version: 3.1.3
  Commit:  4a9f85e9f8

.NET Core SDKs installed:
  3.1.201 [/usr/share/dotnet/sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.App 3.1.3 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.3 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:
  https://aka.ms/dotnet-download

Also getting Cannot create .NET debug configurations. The OmniSharp server is still initializing or has exited unexpectedly

[Krzysztof-Cieslak]

We don't control debug experience in VSCode/.NET