C# debugging with netcoredbg on Windows error ("ConfigurationDone")

[Wmbat]

I keep getting the following error message when trying to attach (or launch) an executable or dll with nvim-dap.

Failed command 'configurationDone' : 0x80070057

I was wondering if you had any information or fixes to get it working properly. My config currently looks like this :

vim.g.dotnet_build_project = function()
    local default_path = vim.fn.getcwd() .. '/'
    if vim.g['dotnet_last_proj_path'] ~= nil then
        default_path = vim.g['dotnet_last_proj_path']
    end
    local path = vim.fn.input('Path to your *proj file', default_path, 'file')
    vim.g['dotnet_last_proj_path'] = path
    local cmd = 'dotnet build -c Debug ' .. path .. ' > /dev/null'
    print('')
    print('Cmd to execute: ' .. cmd)
    local f = os.execute(cmd)
    if f == 0 then
        print('\nBuild: ✔️ ')
    else
        print('\nBuild: ❌ (code: ' .. f .. ')')
    end
end

vim.g.dotnet_get_dll_path = function()
    local request = function()
        return vim.fn.input('Path to dll: ', vim.fn.getcwd() .. '/bin/Debug/', 'file')
    end

    if vim.g['dotnet_last_dll_path'] == nil then
        vim.g['dotnet_last_dll_path'] = request()
    else
        if vim.fn.confirm('Do you want to change the path to dll?\n' .. vim.g['dotnet_last_dll_path'], '&yes\n&no', 2) == 1 then
            vim.g['dotnet_last_dll_path'] = request()
        end
    end

    return vim.g['dotnet_last_dll_path']
end


if os_name == "Windows_NT" then
    dap.adapters.coreclr = {
        type = 'executable',
        command = vim.fn.exepath 'netcoredbg',
        args = { '--interpreter=vscode' },
        options = {
            detached = false,
            justMyCode = false,
            stopAtEntry = false,
        },
    }

    dap.configurations.cs = {
        {
            type = 'coreclr',
            name = 'launch',
            request = 'launch',
            program = function()
                if vim.fn.confirm('Should I recompile first?', '&yes\n&no', 2) == 1 then
                    vim.g.dotnet_build_project()
                end
                return vim.g.dotnet_get_dll_path()
            end,
        },
        {
            type = 'coreclr',
            name = 'Attach (pick process)',
            request = 'attach',
            processId = require('dap.utils').pick_process,
        }
    }
end

These are the logs from dap.log

[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1463 ]	"Spawning debug adapter"	{
  args = { "--interpreter=vscode" },
  command = "C:\\Users\\hspehner\\AppData\\Local\\nvim-data\\mason\\bin\\netcoredbg.CMD",
  options = {
    detached = false,
    justMyCode = false,
    stopAtEntry = false
  },
  type = "executable"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1775 ]	"request"	{
  arguments = {
    adapterID = "nvim-dap",
    clientID = "neovim",
    clientName = "neovim",
    columnsStartAt1 = true,
    linesStartAt1 = true,
    locale = "en_US",
    pathFormat = "path",
    supportsProgressReporting = true,
    supportsRunInTerminalRequest = true,
    supportsStartDebuggingRequest = true,
    supportsVariableType = true
  },
  command = "initialize",
  seq = 1,
  type = "request"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1042 ]	1	{
  body = {
    capabilities = {
      exceptionBreakpointFilters = { {
          filter = "all",
          label = "all"
        }, {
          filter = "user-unhandled",
          label = "user-unhandled"
        } },
      supportTerminateDebuggee = true,
      supportsCancelRequest = true,
      supportsConditionalBreakpoints = true,
      supportsConfigurationDoneRequest = true,
      supportsExceptionFilterOptions = true,
      supportsExceptionInfoRequest = true,
      supportsExceptionOptions = false,
      supportsFunctionBreakpoints = true,
      supportsSetExpression = true,
      supportsSetVariable = true,
      supportsTerminateRequest = true
    }
  },
  event = "capabilities",
  seq = "1",
  type = "event"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1042 ]	1	{
  body = {
    exceptionBreakpointFilters = { {
        filter = "all",
        label = "all"
      }, {
        filter = "user-unhandled",
        label = "user-unhandled"
      } },
    supportTerminateDebuggee = true,
    supportsCancelRequest = true,
    supportsConditionalBreakpoints = true,
    supportsConfigurationDoneRequest = true,
    supportsExceptionFilterOptions = true,
    supportsExceptionInfoRequest = true,
    supportsExceptionOptions = false,
    supportsFunctionBreakpoints = true,
    supportsSetExpression = true,
    supportsSetVariable = true,
    supportsTerminateRequest = true
  },
  command = "initialize",
  request_seq = 1,
  seq = "2",
  success = true,
  type = "response"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1042 ]	1	{
  body = vim.empty_dict(),
  event = "initialized",
  seq = "3",
  type = "event"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1775 ]	"request"	{
  arguments = {
    name = "Attach (pick process)",
    processId = 13172,
    request = "attach",
    type = "coreclr"
  },
  command = "attach",
  seq = 2,
  type = "request"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1775 ]	"request"	{
  arguments = {
    filters = {}
  },
  command = "setExceptionBreakpoints",
  seq = 3,
  type = "request"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1042 ]	1	{
  body = vim.empty_dict(),
  command = "attach",
  request_seq = 2,
  seq = "4",
  success = true,
  type = "response"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1042 ]	1	{
  body = vim.empty_dict(),
  command = "setExceptionBreakpoints",
  request_seq = 3,
  seq = "5",
  success = true,
  type = "response"
}
[ DEBUG ] 2024-11-19T12:30:03Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1775 ]	"request"	{
  command = "configurationDone",
  seq = 4,
  type = "request"
}
[ DEBUG ] 2024-11-19T12:30:06Z-0500 ] ...data\site\pack\packer\start\nvim-dap/lua/dap/session.lua:1042 ]	1	{
  command = "configurationDone",
  message = "Failed command 'configurationDone' : 0x80070057",
  request_seq = 4,
  seq = "6",
  success = false,
  type = "response"
}

Not fully sure if this is a bug in my config, netcoredbg or my setup. Any help is welcome

[Andras-Csanyi]

I have the same problem. I assume it is related to Dotnet 9, but I can be totally wrong.
Are there cases for you where it works? Or you see this error always? In my project, a small one, this is always the case.

[Wmbat]

It's always the case for me, but i've only really tried it on a large monorepo project