Debugger doesn't provide nice error message when 'program' is set to a path that doesn't exist

[xplicit]

Environment data

dotnet --info output:

.NET Command Line Tools (2.0.0-preview1-005977)

Product Information:
 Version:            2.0.0-preview1-005977
 Commit SHA-1 hash:  414cab8a0b

Runtime Environment:
 OS Name:     ubuntu
 OS Version:  16.04
 OS Platform: Linux
 RID:         ubuntu.16.04-x64
 Base Path:   /usr/share/dotnet/sdk/2.0.0-preview1-005977/

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.0-preview1-002111-00
  Build    : 1ff021936263d492539399688f46fd3827169983

VS Code version: 1.13.1
C# Extension version: 1.11.0

Steps to reproduce

When I hit F5 with following config I get an error

No executable found matching command "dotnet-/home/sergey/Projects/ServiceStack/netcore/ServiceStack.Azure/bin/Debug/netcoreapp1.1/ServiceStack.Azure.Tests.dll

it adds prefix dotnet- to all commands and of course it can't find it. So debuging does not work in the latest version, in previous version I did not notice any issues with debugging.

        {
            "name": ".NET Core Launch (console)",
            "type": "coreclr",
            "request": "launch",
            "preLaunchTask": "build",
            "program": "${workspaceRoot}/bin/Debug/netcoreapp1.1/ServiceStack.Azure.Tests.dll",
            "args": [],
            "cwd": "${workspaceRoot}/tests/ServiceStack.Azure.Tests",
            "stopAtEntry": false,
            "console": "internalConsole"
        }

[gregg-miskelly]

I noticed that you have the .NET Core preview2 installed, but your program value is targeting netcoreapp1.1. Is that right?

I believe the problem here is that your program path is wrong (for this reason or something else), and it looks like the debugger is missing a better error message when this happens.

[xplicit]

You're right, it was path issue. The message "file not found" without dotnet- prefix and with full path will be a good solution for this issue.

[gregg-miskelly]

Thanks for confirming. We should have a better experience in the next version.