Run Swift Script no longer seems to do anything

[rhysm94]

Describe the bug
When trying to use the Run Swift Script option on a couple of different Macs, absolutely nothing happens. I get no output, no terminal, no evidence that any code has run or attempted to run.
It doesn't matter whether I'm in a saved file or, as I usually use this feature, in an unsaved document with a short amount of code. Nothing seems to happen when I try to run the active document as a Swift script.

To Reproduce
Steps to reproduce the behavior:

1. Open a blank text document
2. Add some basic Swift code e.g

import Foundation
print("Hello, World!")

3. Select "Run Swift Script" from the Command Palette
4. Nothing happens
   Expected behavior
   Expected behaviour would be the file runs, opening a terminal, and displaying "Hello, World" as the output of the script

Environment

• OS: macOS 26 Tahoe
• Swift version: swift-driver version: 1.127.14.1 Apple Swift version 6.2 (swiftlang-6.2.0.19.9 clang-1700.3.19.1)
• Visual Studio Code version: 1.104.0
• vscode-swift version: 2.11.20250806

Additional context
This worked until very recently on my own Mac, though it seems to have stopped working before on my employer-provided Mac. My own Mac has absolutely zero restrictions on software or permissions, so I don't believe this to be the issue.
It's also not a result of upgrading to Tahoe, as my employer-provided Mac has been experiencing this bug while on Sequoia.

[award999]

hey @rhysm94 thanks for the report, does your workspace have a Package.swift manifest defined? A issue (#1832) was recently fixed but unreleased presently

[rhysm94]

hey @rhysm94 thanks for the report, does your workspace have a Package.swift manifest defined? A issue (#1832) was recently fixed but unreleased presently

No, this happens when I use a completely unsaved file, and when I use just a single Something.swift file too.
Both cases would work previously, whereby I could type anything into VSC, run as a Swift script, and see the output.

[award999]

Sorry by "No" is that no to you trying this in a SwiftPM project workspace? You can run Swift: Capture Diagnostic Bundle and send the artifact and I can take a look. A minimal bundle is fine

[rhysm94]

Sorry, I'll be clearer :)
This happens when I open a VSC window not in a SwiftPM project workspace. Just a totally fresh VSC window, no project open, no folder open. I create a new text editing session (not even a saved file) by pressing Cmd+N.

1. Open VSC
2. Press Cmd+N
3. Start typing some Swift code (as above, with import Foundation to make sure it recognises as Swift)
4. Attempt to "Run Swift Script" via the Command Palette

vscode-diagnostics-2025-09-17T16-51-59+01-00.zip

[plemarquand]

Thanks @rhysm94, this looks like a duplicate of #1832. It should be fixed in the next release.

[plemarquand]

As a workaround until then you can create an empty package with swift package init and place your swift script file in the root of the directory alongside the Package.swift, then run the Swift: Run Swift Script command.

[rhysm94]

As a workaround until then you can create an empty package with swift package init and place your swift script file in the root of the directory alongside the Package.swift, then run the Swift: Run Swift Script command.

Great, that works! Thanks

[award999]

We never had an issue for tracking so thanks for raising it!