claude-code - 💡(How to fix) Fix [Bug] Frontend Dev session crashes and hangs indefinitely [1 comments, 2 participants]

[{"error":"Error: ENOENT: no such file or directory, unlink 'C:\Users\maal\AppData\Local\Temp\claude\C--Users-maal-Documents-Github-ProjectGreenPoC\5407183a-8c2c-4f16-ade2-c1ef363e8276\tasks\ad49721726b3ed922.output'\n at async unlink (node:internal/fs/promises:1065:10)\n at async file:///C:/Users/maal/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:8006:340","timestamp":"2026-04-14T16:38:35.937Z"},{"error":"Error: ENOENT: no such file or directory, unlink 'C:\Users\maal\AppData\Local\Temp\claude\C--Users-maal-Documents-Github-ProjectGreenPoC\5407183a-8c2c-4f16-ade2-c1ef363e8276\tasks\adf0334e423400481.output'\n at async unlink (node:internal/fs/promises:1065:10)\n at async file:///C:/Users/maal/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:8006:340","timestamp":"2026-04-14T16:48:40.655Z"},{"error":"Error: ensureToolResultPairing: repaired missing tool_result blocks (49 -> 49 messages). Message structure: [0] user; [1] assistant(id=msg_01UGRyQSiCZrqHT5mEE8V6Mj, tool_uses=[toolu_012zrKZ63ATdgib6i5VePN83]); [2] user(tool_results=[toolu_012zrKZ63ATdgib6i5VePN83]); [3] assistant(id=msg_01VLwzx18UDqw5JN2UDHswZv, tool_uses=[]); [4] user; [5] assistant(id=msg_01KXqVXxE8fFRSTYKtCUHq1E, tool_uses=[]); [6] user; [7] assistant(id=msg_01RooQtDraYEaYi51zEdiuhk, tool_uses=[toolu_013DsYMFhJgQ1vomkNR16DtL]); [8] user(tool_results=[toolu_013DsYMFhJgQ1vomkNR16DtL]); [9] assistant(id=msg_011DyNEpWDmUxx7gG6Y7eWBa, tool_uses=[toolu_01GEwS9E5XHbR4Z7MaCFr6S4]); [10] user(tool_results=[toolu_01GEwS9E5XHbR4Z7MaCFr6S4]); [11] assistant(id=msg_01CWjHtbZdzPtHKz3QjyjpT2, tool_uses=[toolu_01S2qq4754sJU6y5ELPp7Nhx]); [12] user(tool_results=[toolu_01S2qq4754sJU6y5ELPp7Nhx]); [13] assistant(id=msg_01CHrNJ9eQC4F41ekXa8q82k, tool_uses=[toolu_01Rz5S2MytveKck4HRKTsArH]); [14] user(tool_results=[toolu_01Rz5S2MytveKck4HRKTsArH]); [15] assistant(id=msg_017rfohRxjUszSa4bgpihvkX, tool_uses=[toolu_01U8teHb4dec1FATxELSooYZ]); [16] user(tool_results=[toolu_01U8teHb4dec1FATxELSooYZ]); [17] assistant(id=msg_01QfjskAnniAWid5v7hsEheh, tool_uses=[toolu_01JrTV8oVgiBHmk7uGDD4Zio]); [18] user(tool_results=[toolu_01JrTV8oVgiBHmk7uGDD4Zio]); [19] assistant(id=msg_019kj5GVArfmHrY7aGeRLJes, tool_uses=[toolu_01NDje78emJwWnTexho4uqMZ]); [20] user(tool_results=[toolu_01NDje78emJwWnTexho4uqMZ]); [21] assistant(id=msg_01QsgnNtHRGENWbj2YEk7XUC, tool_uses=[toolu_01NFc6uUcgz1FPEGxKaUcJBd]); [22] user(tool_results=[toolu_01NFc6uUcgz1FPEGxKaUcJBd]); [23] assistant(id=msg_01KUdRAUMK8mnNYQXYnCydSz, tool_uses=[toolu_012nzP5UdkMDYJWRLQjE7GZd]); [24] user(tool_results=[toolu_012nzP5UdkMDYJWRLQjE7GZd]); [25] assistant(id=msg_019Ki9pAz4C47Et8uprGPuAG, tool_uses=[toolu_016qHY4RsaZQApzK2D78biws]); [26] user(tool_results=[toolu_016qHY4RsaZQApzK2D78biws]); [27] assistant(id=msg_01TNiKo4ju7jTU9NoBN1Khif, tool_uses=[toolu_01GizNb5vfHjGDX9eKoPoGws]); [28] user(tool_results=[toolu_01GizNb5vfHjGDX9eKoPoGws]); [29] assistant(id=msg_01Xo1z5VDvn7JiviPucvbz5E, tool_uses=[toolu_01UgiFVkrnFRAJgabFizycp6]); [30] user(tool_results=[toolu_01UgiFVkrnFRAJgabFizycp6]); [31] assistant(id=msg_016cXa6X11bMLEBQFgD4MzjV, tool_uses=[toolu_01VWEDfRJKStWRj4p4chiVm6]); [32] user(tool_results=[toolu_01VWEDfRJKStWRj4p4chiVm6]); [33] assistant(id=msg_014h9L1L4vzsBkKTdw1bxPiC, tool_uses=[toolu_01VPx3uGtECZvrYa7TV2JXQH]); [34] user(tool_results=[toolu_01VPx3uGtECZvrYa7TV2JXQH]); [35] assistant(id=msg_01TjUaGUpsGnAgyeWJSZVyp5, tool_uses=[toolu_01KWcNYd1sKpfbrc8JuTfen9]); [36] user(tool_results=[toolu_01KWcNYd1sKpfbrc8JuTfen9]); [37] assistant(id=msg_01KrGeSg6Zv5WRBLEHAk9YUZ, tool_uses=[toolu_01H2X24yTB2xWcbwvx9EQzKR]); [38] user(tool_results=[toolu_01H2X24yTB2xWcbwvx9EQzKR]); [39] assistant(id=msg_01NJNbmAeiituEUpf3zgfHnt, tool_uses=[toolu_01GumPxeMAqB1DLvZbBmeCRK]); [40] user(tool_results=[toolu_01GumPxeMAqB1DLvZbBmeCRK]); [41] assistant(id=msg_01HMUkVjbAXLXojfEeFFaA1J, tool_uses=[toolu_0189qH9i9WgEF4QoXkVkumPH]); [42] user(tool_results=[toolu_0189qH9i9WgEF4QoXkVkumPH]); [43] assistant(id=msg_01HNdEai7tR9RjUx1vTJ7B3w, tool_uses=[toolu_011ddcddbuRpj3a8JNMJE65r]); [44] user(tool_results=[toolu_011ddcddbuRpj3a8JNMJE65r]); [45] assistant(id=msg_01CpkVv87CdDKT2Gg5HN9ApA, tool_uses=[toolu_011jFvaLnyw99UfKBtqtyf9x]); [46] user(tool_results=[toolu_011jFvaLnyw99UfKBtqtyf9x]); [47] assistant(id=msg_01Tdrx4gFcry6Vs23DCk4LEd, tool_uses=[toolu_01Ws4z1z461JxgmV9WTT3Y3C]); [48] user\n at ehK (file:///C:/Users/maal/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:5210:9594)\n at q65 (file:///C:/Users/maal/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:8156:12010)\n at async file:///C:/Users/maal/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:8156:8063\n at async c_7 (file:///C:/Users/maal/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4666:2519)\n at async Object.ib6 [as callModel] (file:///C:/Users/maal/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:8156:8033)\n at async SfY (file:///C:/Users/maal/AppData/Roaming/npm/node_modul…

TL;DR

The FrontEnd Dev crashes and hangs due to an ENOENT error when trying to unlink files in the temporary directory.

Guidance

• The error messages indicate that the issue is related to file system operations, specifically unlinking files in the temporary directory.
• The ENOENT error suggests that the files being attempted to be unlinked do not exist, which could be due to a race condition or a bug in the code.
• To mitigate the issue, you can try checking the temporary directory for any leftover files and manually removing them.
• You can also try updating the @anthropic-ai/claude-code package to the latest version to see if the issue is resolved.

Example

No code snippet is provided as the issue is related to a third-party package and the code is not available.

Notes

The content of the issue was truncated, which may limit the ability to provide a comprehensive solution. Additionally, the issue may be related to a bug in the @anthropic-ai/claude-code package, which would require further investigation.

Recommendation

Apply a workaround by manually removing leftover files in the temporary directory and consider updating the @anthropic-ai/claude-code package to the latest version.