Failed to find Swift Toolchain on macOS

[0xTim]

Describe the bug
When running on a clean install of macOS I'm getting the error "Failed to find Swift toolchain". This is a fresh VM with nothing installed.

Important Note: This environment has installed Swift via Swiftly and Xcode is not installed

To Reproduce

1. Install Swift
2. Install VSCode
3. Install the extension
4. Click "Create Swift Project"

Expected behavior
Toolchain discovered so I can create projects, build etc

Environment

• OS: macOS 15.4
• Swift version (output of swift --version): Swift version 6.1 (swift-6.1-RELEASE)
• Visual Studio Code version: 1.99.2
• vscode-swift version: 2.0.2

Additional context
Add any other context about the problem here.

[0xTim]

This might actually be a SwiftPM/Swiftly bug - I'm getting prompted to install xcrun and other developer tools. Why I need these is another question

[rbenegal]

Thanks for reporting this @0xTim! I just tried this workflow today and I think @plemarquand has fixed with the latest version of the extension (version 2.2.0 - which should be published shortly, or the pre-release swift-vscode-2.3.20250415 which has been published already). Could you please give that a try?

[plemarquand]

I think this should be resolved by #1470, but please do let me know if you're still experiencing this with a swiftly managed toolchain on macOS using the 2.2.0 extension (which is now released).

[0xTim]

@plemarquand I now get "unable to automatically discover your Swift toolchain". I think this is a Swift/Swiftly issue - I get an error with swift package init as well when it tries to invoke xcrun with any swift command, e.g. swift package init. I'll close this and open an issue on Swiftly