claude-code - 💡(How to fix) Fix [Bug] ReasonML diffs contain corrupted "undefined" text artifacts [1 participants]

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anthropics/claude-code#52877Fetched 2026-04-25 06:18:29
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Error Message

[{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:20:06.514Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:20:06.514Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:37:47.723Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:37:47.723Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T12:44:25.057Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T12:44:25.057Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T13:51:55.192Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T13:51:55.192Z"}]

Code Example

[{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:20:06.514Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:20:06.514Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:37:47.723Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:37:47.723Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T12:44:25.057Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T12:44:25.057Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T13:51:55.192Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T13:51:55.192Z"}]
RAW_BUFFERClick to expand / collapse

Bug Description I'm getting ReasonML diffs that have the word ndefined or undefined in them like:

  427    let jump_to_tile = (id: Id.t, model: Model.t): option(Update.t) => {
  428 -    switch (Measured.find_by_id(id, model.editor.syntax.measured)) {
  428 +    switch (TermData.rootndefined;undefined;undefinedm_piecendefined;undefined;undefinedm(idndefined;undefined;undefinedm, modelndefined;un
  429      | ndefined;undefined;undefinedmSome(_ndefined;undefined;undefinedm) => ndefined;undefined;undefinedmSome(Perform(Move(Goal(TileId(idnde
  430      | ndefined;undefined;undefinedmNone => None

Environment Info

  • Platform: darwin
  • Terminal: iTerm.app
  • Version: 2.1.119
  • Feedback ID: 61e089e2-769a-403f-84e4-1d7752ac7fc6

Errors

[{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:20:06.514Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:20:06.514Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:37:47.723Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T11:37:47.723Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T12:44:25.057Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T12:44:25.057Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T13:51:55.192Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded\n    at aT5 (/$bunfs/root/src/entrypoints/cli.js:2734:5533)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T13:51:55.192Z"}]

extent analysis

TL;DR

The issue might be related to a network timeout or connectivity problem when fetching version information from a remote URL.

Guidance

  • Check the network connection and ensure it is stable.
  • Verify that the URL https://downloads.claude.ai/claude-code-releases/latest is accessible and responding within the 30-second timeout.
  • Consider increasing the timeout value if the server is taking longer to respond.
  • Review the error logs to see if there are any patterns or additional information that could help diagnose the issue.

Example

No code snippet is provided as the issue seems to be related to network connectivity or server response rather than code syntax.

Notes

The provided information does not give clear insight into how to directly fix the ReasonML diffs issue, but the errors suggest a problem with fetching version information, which might be a separate issue.

Recommendation

Apply workaround: Check and stabilize the network connection to ensure reliable access to the required URL, as the primary errors indicate a timeout issue.

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claude-code - 💡(How to fix) Fix [Bug] ReasonML diffs contain corrupted "undefined" text artifacts [1 participants]