No such module PackagePlugin

[matthewbastien]

Swift version

swift-driver version: 1.113 Apple Swift version 6.0 (swiftlang-6.0.0.7.6 clang-1600.0.24.1)

Platform

macOS 14

Editor

Visual Studio Code

Does the issue reproduce with Swift 6?

Yes

Description

SourceKit-LSP gives an error diagnostic No such module PackagePlugin when trying to import PackagePlugin for a SwiftPM plugin. This module should be available and give code completion, go to definition, etc.

Steps to Reproduce

Clone git@github.com:elegantchaos/Versionator.git
checkout 187bc4c0e15dadccb5a65b2f71fa0082bd583f81
open in VSCode and try to edit Plugins/VersionatorPlugin/plugin.swift

Logging

No response

[matthewbastien]

This was originally reported in swiftlang/vscode-swift#1044 by @samdeane

[ahoppen]

Synced to Apple’s issue tracker as rdar://136423767

[MihaelIsaev]

The lack of autocompletion is quite frustrating. Are there any updates on this issue?

[ahoppen]

Yes, #1846 should fix the issue.

[knopp]

This still seems to be an issue? (Tested with swift-DEVELOPMENT-SNAPSHOT-2025-03-25)