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HomeDocsClaude Code CLI 22 Oct 2026
One change · claude-code

Error reference changederrors

Nearest release: v2.1.307, published 3 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 22 Oct 2026 00:01 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Oct 2026 00:07 UTC.

Upstream edited
Recorded here
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First seen 14 Aug 2026 this site's first read of the page
Recorded edits187to this page, all time

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2121| `Opus is experiencing high load` / `Fable is experiencing high load` | [Server errors](#api-error-repeated-529-overloaded-errors) |
2222| `Request timed out` | [Server errors](#request-timed-out), or [Network](#unable-to-connect-to-api) if the message mentions your internet connection |
2323| `API Error: No response from API` | [Server errors](#no-response-from-api) |
24| `API Error: Stream idle timeout - no chunks received` | [Streaming idle watchdogs](/docs/en/network-config#streaming-idle-watchdogs), or [Long thinking ends in proxy timeouts](/docs/en/claude-apps-gateway-deploy#long-thinking-ends-in-proxy-timeouts) behind a Claude apps gateway |
2425| `Server error mid-response. The response above may be incomplete.` | [Server errors](#the-response-above-may-be-incomplete) |
2526| `Connection lost mid-response` / `Your computer went to sleep mid-response` / `The response stopped arriving` | [Server errors](#the-response-above-may-be-incomplete) |
2627| `Connection closed mid-response` / `Response stalled mid-stream` | [Server errors](#the-response-above-may-be-incomplete) |
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26222623 
26232624The reason after the file path says what failed:
26242625 
2625* **`can't be written (<code>)`**: the write failed with the operating system error code in parentheses, such as `EROFS` when the file, or the file it links to, sits on a filesystem that refuses writes. Make the file writable and switch again. If another tool generates the file, set the `model` key in that tool instead; see [A change you made in Claude Code is lost in new sessions](/docs/en/settings#a-change-you-made-in-claude-code-is-lost-in-new-sessions).
2626* **`isn't valid JSON`**: the file on disk doesn't parse, and Claude Code leaves it untouched rat
2626* **`can't be written (<code>)`**: the write failed with the operating system error code in parentheses, such as `EROFS` when the file, or the file it links to, sits on a filesystem that refuses writes. Make the file writable and switch again. If another tool generates the fi
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