posit-dev / posit-dev/positron
R failed to start up: R or ark is calling `abort()` during startup
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Description
System details:
Positron and OS details:
Positron Version: 2025.07.0 (user setup) build 204
Code - OSS Version: 1.100.3
Commit: 03ae7a5393c776bb24c23d2aa6a6bfbba90cbc5e
Date: 2025-06-30T16:48:57.049Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.19045
Interpreter details:
R 4.2.0
Describe the issue:
R 4.2.0 failed to start up
Steps to reproduce the issue:
- Start New Interpreter Session (with shortcut Ctrl+Shift+/)
- Click "R 4.2.0"
Expected or desired behavior:
Positron starts a new R 4.2.0 session
Were there any error messages in the UI, Output panel, or Developer Tools console?
In the Console, I get this message:
R 4.2.0 failed to start up (exit code -1073740791)
The process exited abnormally (exit code: 0xc0000409)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the failure on Windows using the listed Positron and R versions by starting a new interpreter session and selecting R 4.2.0. Inspect the Console and relevant troubleshooting output for the abort and exit code; done means Positron starts the R session successfully.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- r
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100