IndexOutOfRangeException at line 141 of DotnetPathResolver.cs

[cdibbs]

Context:

This code used to work prior to recent VS and framework updates (I don't remember the specifics of the updates which were recommended by VS 2022). It walks through .csprojs and builds them with the following options:

            var envOptions = new EnvironmentOptions
            {
                EnvironmentVariables =
                {
                    ["IntermediateOutputPath"] = Path.Combine(rootSlnDir, "ba", "obj", project.ProjectGuid.ToString()),
                    ["OutputPath"] = Path.Combine(rootSlnDir, "ba", "bin", project.ProjectGuid.ToString())
                }
            };
           return project.Build(envOptions);

The error appears to be due to incomplete information in dotnet --info when run from within ProcessRunner:

Host (useful for support):
  Version: 6.0.2
  Commit:  839cdfb0ec
.NET SDKs installed:
  No SDKs were found.
.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.0 [C:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.22 [C:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.2 [C:\Program Files (x86)\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.0 [C:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.5 [C:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.22 [C:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.2 [C:\Program Files (x86)\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.0 [C:\Program Files (x86)\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.22 [C:\Program Files (x86)\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.2 [C:\Program Files (x86)\dotnet\shared\Microsoft.WindowsDesktop.App]
To install additional .NET runtimes or SDKs:
  https://aka.ms/dotnet-download

Running from within Powershell produces more complete output:

.NET SDK (reflecting any global.json):
 Version:   6.0.200
 Commit:    4c30de7899

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.18363
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.200\

Host (useful for support):
  Version: 6.0.2
  Commit:  839cdfb0ec

.NET SDKs installed:
  3.1.100 [C:\Program Files\dotnet\sdk]
  3.1.109 [C:\Program Files\dotnet\sdk]
  3.1.416 [C:\Program Files\dotnet\sdk]
  6.0.101 [C:\Program Files\dotnet\sdk]
  6.0.200 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.All 2.1.14 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.All 2.1.30 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.14 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 2.1.30 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.1.14 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.1.30 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

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

Any help would be appreciated. Thanks!

[daveaglick]

This part is particularly interesting:

No SDKs were found.

I've never seen that before, and it doesn't even really make sense to me from a dotnet --info call - I'm not sure how anything to do with the environment would hide the SDKs.

Is it possible you've encountered this problem or something like it?: https://github.com/dotnet/installer/issues/12616

[cdibbs]

@daveaglick Yep, and the first comment about deleting the x86 folder solved it for me. In hindsight, I suppose the big clue was in the output I pasted above. Notice that the first list of runtimes points to the Program Files (x86) folder while the second points to the regular Program Files folder. So, it seems like the tool gets tripped up when dotnet.exe is installed for more than one architecture.

[daveaglick]

Cool - glad it's resolved for you. This looks like an upstream bug with dotnet itself, which makes sense given that Buildalyzer just shells out to that (and relies on what it outputs to figure things out). Since this is an exceptional situation, unless you think there's something we can do on this end, I'm going to close it as out of scope for Buildalyzer.