[Claude Desktop] Fatal Error 09BN5MH - TypeError: i is not iterable
Resolved 💬 2 comments Opened May 25, 2026 by S81Q Closed Jun 26, 2026
Description
Claude Desktop crashes with error code 09BN5MH when accessing task-related features (e.g., /task/new).
Error Trace
Trace ID: 09BN5MH
Error Message: TypeError: i is not iterable
Full Stack Trace from claude.ai-web.log:
TypeError: i is not iterable
at https://assets-proxy.anthropic.com/claude-ai/v2/assets/v1/cbc59a8af-93AUUEgX.js:2:36582
at vl (https://assets-proxy.anthropic.com/claude-ai/v2/assets/v1/vendor-CAJFgYol.js:11:96715)
... (rest of React internal calls)
Environment
- App Version: 1.8089.1
- OS: Windows 11 Home (Build 26200)
- Features Affected: Cowork / Computer Use / Task Creation
Additional Logs
The cowork_vm_node.log reports: yukonSilver not supported (status=unsupported). Since this is Windows Home, it may be related to missing Hyper-V requirements for specific virtualization features.
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