{"record":{"id":"142760ba31ca2bfb","repo":"slopus/happy","slug":"taskkill-exited-with-code-result-status","errorCode":null,"errorMessage":"taskkill exited with code ${result.status}","messagePattern":"taskkill exited with code (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"warning","filePath":"packages/happy-cli/src/daemon/doctor.ts","lineNumber":97,"sourceCode":"}\n\n/**\n * Kill all runaway Happy CLI processes\n */\nexport async function killRunawayHappyProcesses(): Promise<{ killed: number, errors: Array<{ pid: number, error: string }> }> {\n  const runawayProcesses = await findRunawayHappyProcesses();\n  const errors: Array<{ pid: number, error: string }> = [];\n  let killed = 0;\n  \n  for (const { pid, command } of runawayProcesses) {\n    try {\n      console.log(`Killing runaway process PID ${pid}: ${command}`);\n      \n      if (process.platform === 'win32') {\n        // Windows: use taskkill\n        const result = spawn.sync('taskkill', ['/F', '/PID', pid.toString()], { stdio: 'pipe' });\n        if (result.error) throw result.error;\n        if (result.status !== 0) throw new Error(`taskkill exited with code ${result.status}`);\n      } else {\n        // Unix: try SIGTERM first\n        process.kill(pid, 'SIGTERM');\n        \n        // Wait a moment\n        await new Promise(resolve => setTimeout(resolve, 1000));\n        \n        // Check if still alive\n        const processes = await psList();\n        const stillAlive = processes.find(p => p.pid === pid);\n        if (stillAlive) {\n          console.log(`Process PID ${pid} ignored SIGTERM, using SIGKILL`);\n          process.kill(pid, 'SIGKILL');\n        }\n      }\n      \n      console.log(`Successfully killed runaway process PID ${pid}`);\n      killed++;","sourceCodeStart":79,"sourceCodeEnd":115,"githubUrl":"https://github.com/slopus/happy/blob/b824cd0a4681d41af631a8e422a813873e4455b0/packages/happy-cli/src/daemon/doctor.ts#L79-L115","documentation":"On Windows, killRunawayHappyProcesses uses spawn.sync('taskkill', ['/F', '/PID', ...]); if taskkill exits non-zero (target not found, access denied), the error is thrown. On Unix the code path uses process.kill with SIGTERM instead and never throws this message.","triggerScenarios":"Doctor-mode cleanup finds a runaway happy process PID and taskkill /F fails — the process already exited between detection and kill, or the shell lacks permission to force-kill it.","commonSituations":"Stale PID from a previous session (process gone), running the doctor command without admin/elevated privileges, antivirus blocking taskkill, or PID reuse by a protected system process.","solutions":["Re-run the doctor command — if the PID was stale, it will no longer be detected","Run the terminal as Administrator so taskkill has permission to force-kill","Verify the PID belongs to a happy process with `tasklist /FI \"PID eq <pid>\"` before killing","Manually run `taskkill /F /PID <pid>` to see the specific Windows error"],"exampleFix":"// before\nif (result.status !== 0) throw new Error(`taskkill exited with code ${result.status}`);\n// after\nif (result.status !== 0) {\n  logger.warn(`taskkill could not kill PID ${pid} (exit ${result.status}); it may have already exited`);\n} else {\n  logger.log(`Killed PID ${pid}`);\n}","handlingStrategy":"try-catch","validationCode":"// Windows: verify the PID is still a happy process and that we can kill it\nexecSync(`tasklist /FI \"PID eq ${pid}\"`); // throws or shows absence\n","typeGuard":null,"tryCatchPattern":"try {\n  killRunawayHappyProcesses();\n} catch (err) {\n  if (String(err.message).startsWith('taskkill exited')) {\n    console.warn('Could not force-kill PID (stale or access denied). Try an elevated terminal.');\n  } else throw err;\n}","preventionTips":["Run the terminal as Administrator when killing processes on Windows","Re-check PID liveness immediately before taskkill","Treat exit-code failures as non-fatal for stale PIDs","Verify PID ownership (process name) before force-killing"],"tags":["windows","process","cli"],"backgroundTag":"process-kill-permission-denied","analyzedSha":"b824cd0a4681d41af631a8e422a813873e4455b0","analyzedAt":"2026-08-31T23:12:36.205Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T05:18:18.240Z"}