{"record":{"id":"e7af6a8b41565b9d","repo":"quasarframework/quasar","slug":"could-not-resolve-an-existing-ancestor-for-targ-e7af6a","errorCode":null,"errorMessage":"Could not resolve an existing ancestor for \"${target}\"","messagePattern":"Could not resolve an existing ancestor for \"(.+?)\"","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"app-vite/lib/utils/remove-build-artifacts.js","lineNumber":34,"sourceCode":"}\n\nfunction getExistingAncestor(target) {\n  let current = target\n\n  while (true) {\n    try {\n      fse.lstatSync(current)\n      return current\n    } catch (err) {\n      if (err.code !== 'ENOENT' && err.code !== 'ENOTDIR') {\n        throw err\n      }\n    }\n\n    const parent = dirname(current)\n\n    if (parent === current) {\n      throw new Error(`Could not resolve an existing ancestor for \"${target}\"`)\n    }\n\n    current = parent\n  }\n}\n\nfunction getEffectivePath(target) {\n  const existingAncestor = getExistingAncestor(target)\n  const realAncestor = fse.realpathSync(existingAncestor)\n\n  return resolve(realAncestor, relative(existingAncestor, target))\n}\n\nfunction isFilesystemRoot(target) {\n  return target === parse(target).root\n}\n\nexport function getBuildArtifactsCleanTarget({","sourceCodeStart":16,"sourceCodeEnd":52,"githubUrl":"https://github.com/quasarframework/quasar/blob/4841521b5f635a971eb9e2710e5542efd194691b/app-vite/lib/utils/remove-build-artifacts.js#L16-L52","documentation":"getExistingAncestor walks up from a target path directory by directory until it finds one that exists, so the build-artifact cleaner has an existing anchor to resolve against. It throws when it reaches the filesystem root (dirname(current) === current) without finding any existing ancestor, meaning the whole chain from target to root is missing or unreadable.","triggerScenarios":"Calling removeBuildArtifacts (via existingAncestor) with a target/project path whose every ancestor, up to and including the filesystem root, does not exist or cannot be stat'ed — e.g. a deeply nested path on an unmounted volume or a misspelled absolute path with no existing parents.","commonSituations":"Typo in an absolute path like /home/user/prokect/dist where nothing exists; deleted or unmounted drive/network mount; container volume not yet mounted when the clean step runs.","solutions":["Verify the target path is spelled correctly and at least one ancestor (e.g. the drive root or project dir) exists","Mount the volume or wait for the mount before running the clean step","Recreate the missing parent directory with 'mkdir -p' before invoking the cleaner","Ensure you are passing an absolute path; relative paths resolved from an unexpected cwd may not exist"],"exampleFix":"// before\nawait removeBuildArtifacts({ projectDir: '/mnt/unmounted-vol/app', targetDir: 'dist' })\n// after\n// mount the volume first, or:\nawait removeBuildArtifacts({ projectDir: '/home/me/app', targetDir: 'dist' })","handlingStrategy":"validation","validationCode":"const fs = require('node:fs')\nfunction hasExistingAncestor(p) {\n  let cur = require('node:path').resolve(p)\n  while (true) {\n    if (fs.existsSync(cur)) return true\n    const parent = require('node:path').dirname(cur)\n    if (parent === cur) return false\n    cur = parent\n  }\n}\nif (!hasExistingAncestor(target)) throw new Error(`No existing ancestor for ${target}`)","typeGuard":null,"tryCatchPattern":"try {\n  await removeBuildArtifacts(opts)\n} catch (err) {\n  if (String(err.message).startsWith('Could not resolve an existing ancestor')) {\n    // verify path spelling / mount the volume before retrying\n  } else throw err\n}","preventionTips":["Always pass absolute, verified paths to cleanup APIs","Check volumes/mounts are up before build steps in CI","mkdir -p the project directory before cleaning artifacts"],"tags":["filesystem","path","cleanup"],"backgroundTag":"path-not-found","analyzedSha":"4841521b5f635a971eb9e2710e5542efd194691b","analyzedAt":"2026-08-30T01:13:14.944Z","schemaVersion":2},"datasetVersion":"2026-08-30T03:17:51.788Z"}