When Target is set to es6, a rolldown warning is thrown: Warning: Could not resolve '@oxc-project/runtime/helpers/asyncToGenerator' #140
Description
Describe the bug
Repro steps:
- Clone repo
- run
pnpm install - run
pnpm build
❯ pnpm build
> ts-starter@0.0.0 build /Users/zaneliu/Projects/open-source/tsdown-minimal-reproduction
> tsdown
ℹ tsdown v0.9.1 powered by rolldown v1.0.0-beta.7 tsdown 18:59:13
ℹ Using tsdown config: /Users/zaneliu/Projects/open-source/tsdown-minimal-reproduction/tsdown.config.ts tsdown 18:59:13
ℹ entry: src/index.ts tsdown 18:59:13
ℹ Using tsconfig: /Users/zaneliu/Projects/open-source/tsdown-minimal-reproduction/tsconfig.json tsdown 18:59:13
ℹ Cleaning output folder tsdown 18:59:13
[UNRESOLVED_IMPORT] Warning: Could not resolve '@oxc-project/runtime/helpers/asyncToGenerator' in src/index.ts
╭─[ src/index.ts:1:31 ]
│
1 │ import _asyncToGenerator from "@oxc-project/runtime/helpers/asyncToGenerator";
│ ───────────────────────┬───────────────────────
│ ╰───────────────────────── Module not found, treating it as an external dependency
───╯
[UNRESOLVED_IMPORT] Warning: Could not resolve '@oxc-project/runtime/helpers/asyncToGenerator' in src/index.ts
╭─[ src/index.ts:1:31 ]
│
1 │ import _asyncToGenerator from "@oxc-project/runtime/helpers/asyncToGenerator";
│ ───────────────────────┬───────────────────────
│ ╰───────────────────────── Module not found, treating it as an external dependency
───╯Reproduction
https://github.com/ZaneL1u/tsdown-minimal-reproduction
System Info
System:
OS: macOS 15.4.1
CPU: (8) arm64 Apple M3
Memory: 90.47 MB / 16.00 GB
Shell: 3.7.1 - /opt/homebrew/bin/fish
Binaries:
Node: 22.12.0 - ~/.local/state/fnm_multishells/52274_1745319243421/bin/node
npm: 10.9.0 - ~/.local/state/fnm_multishells/52274_1745319243421/bin/npm
pnpm: 10.8.1 - ~/.local/state/fnm_multishells/52274_1745319243421/bin/pnpm
bun: 1.2.3 - /opt/homebrew/bin/bun
Browsers:
Chrome: 135.0.7049.96
Safari: 18.4Used Package Manager
pnpm
Validations
- Follow our Code of Conduct
- Read the Contributing Guide.
- Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
- Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
- The provided reproduction is a minimal reproducible of the bug.