File Edit Failure: String Not Found in Target File

Bug Description
when modifying claude.md, error occured.

--------------------------------------------------------------------------------------

@CLAUDE.md#L144-160 이 부분을 모호한 부분을 좀더 명확하게

작성하고 간결하게 작성하고 싶어.
⎿ Read CLAUDE.md (17 lines)

⏺ 해당 Rules 섹션을 더 명확하고 간결하게 수정하겠습니다.

⏺ Update(CLAUDE.md)

╭────────────────────────────────────────────────────────────────╮
│ │
│ Opened changes in Cursor ⧉ │
│ Save file to continue… │
│ │
│ Do you want to make this edit to CLAUDE.md? │
│ ❯ 1. Yes │
│ 2. Yes, and don't ask again this session (shift+tab) │
│ 3. No, and tell Claude what to do differently (esc) │
│ │
╰────────────────────────────────────────────────────────────────╯

node:internal/process/promises:394
triggerUncaughtException(err, true / fromPromise /);
^

Error: String not found in file. Failed to apply edit.
at uT (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1636:728)
at iR6 (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1969:12134)
at J (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1969:11112)
at file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1969:11378
at hD (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:21377)
at oF (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:40875)
at file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:39071
at KT1 (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:61:78877)
at Immediate.FT1 [as _onImmediate] (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:61:79295)
at process.processImmediate (node:internal/timers:491:21)

Node.js v22.14.0

Environment Info

• Platform: darwin
• Terminal: cursor
• Version: 1.0.51
• Feedback ID: 632b3042-891e-43e2-b5fa-e287c5b6d48c

Errors

[{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at checkExecSyncError (node:child_process:882:11)\n    at execSync (node:child_process:954:15)\n    at eD (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:712:4489)\n    at file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:624:13989\n    at Q (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:526:14406)\n    at QF (file:///Users/jeongjunhyeon/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:624:13129)\n    at cC (file:///Users/jeongjun

Note: Error logs were truncated.