{"record":{"id":"da7b809828e70d2b","repo":"deepseek-ai/deepseek-harness","slug":"fs-not-regular-file","errorCode":"FS_NOT_REGULAR_FILE","errorMessage":"cannot write \"${target.displayPath}\": not a regular file","messagePattern":"cannot write \"(.+?)\": not a regular file","errorType":"exception","errorClass":"FsError","httpStatus":null,"severity":"error","filePath":"packages/e2b/fs-e2b/src/index.ts","lineNumber":385,"sourceCode":"          ...(resolved?.type === FileType.FILE ? { size: resolved.size } : {}),\n        })\n      }\n      return entries.sort((left, right) => left.name.localeCompare(right.name))\n    } catch (error: unknown) {\n      throw mapError(error, 'list', target.displayPath, signal)\n    }\n  }\n\n  override async writeText(\n    target: FsTarget,\n    content: string,\n    expected?: FsWriteIntent,\n    signal?: AbortSignal,\n  ): Promise<FsWriteOutcome> {\n    return this.withLock(String(target.targetKey), async () => {\n      const existing = await this.probe(String(target.targetKey), target.displayPath, signal)\n      if (existing !== undefined && entryType(existing) !== 'file') {\n        throw new FsError(`cannot write \"${target.displayPath}\": not a regular file`, 'FS_NOT_REGULAR_FILE')\n      }\n      this.checkWriteIntent(existing, expected, target)\n      const before = existing === undefined ? null : await this.readForDiff(target, signal)\n      const version = await this.writeAtomic(\n        target,\n        content,\n        existing,\n        expected?.kind === 'createIfAbsent',\n        signal,\n      )\n      return {\n        operation: existing === undefined ? 'create' : 'update',\n        version,\n        before,\n        after: normalizeLineEndings(content),\n      }\n    })\n  }","sourceCodeStart":367,"sourceCodeEnd":403,"githubUrl":"https://github.com/deepseek-ai/deepseek-harness/blob/b150a551b8d465e31e418e1b2eaf5e79bbb7d28e/packages/e2b/fs-e2b/src/index.ts#L367-L403","documentation":"Error \"cannot write \"${target.displayPath}\": not a regular file\" thrown in deepseek-ai/deepseek-harness.","triggerScenarios":"Thrown at packages/e2b/fs-e2b/src/index.ts:385 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"b150a551b8d465e31e418e1b2eaf5e79bbb7d28e","analyzedAt":"2026-08-24T18:12:29.105Z","schemaVersion":2},"datasetVersion":"2026-08-24T22:17:12.610Z"}