AI Chat Template generates two SLN files

[jongalloway]

Description

AI Chat Template with .NET Aspire is generating two SLN files in nested folders.

Reproduction Steps

Create a new solution using the AI Chat Web template and .NET Aspire orchestration in Visual Studio 2022.

Expected behavior

One solution file is created

Actual behavior

Two solution files are created:

C:\source\ChatApp4
│ ChatApp4.sln
└───ChatApp4
│ ChatApp4.sln
│ README.md
├───ChatApp4.AppHost
├───ChatApp4.ServiceDefaults
└───ChatApp4.Web

Regression?

No response

Known Workarounds

No response

Configuration

No response

Other information

No response

[jeffhandley]

Good catch. This does not repro from the command-line since the CLI doesn't create a solution file file by default (only the sln file from the template is then created).

This also only repros when the 'Place solution and project in the same directory' checkbox is unchecked. When that box is checked, only 1 sln file is created and it is produced from the template (presumably overwriting the one created by VS).

[jeffhandley]

I know I've seen this issue in other project templates that produce full solutions. I'm curious if @copilot knows how to address it...

[jeffhandley]

Copilot's diagnosis and fix attempt in #6632 does not resolve the issue. Creating the project using Visual Studio still results in 2 solution files. The solution file at the root folder is created by Visual Studio, and the solution file in the subfolder is created by the template.

When the 'Place solution and project in the same directory' checkbox is checked, the solution file created by Visual Studio overwrites the one created by the project template.

[jeffhandley]

I thought perhaps the issue was the the binding for hostIdentifier isn't prefixed with host:, but that didn't seem to be it either.