| EOVERRIDE |
npm ERR! code EOVERRIDE — Override for x conflicts with direct dependency |
An "overrides" entry sets a different version for a package you also depend on directly. |
| Corepack keyid |
Error: Cannot find matching keyid (Corepack signature verification) |
An older Corepack couldn’t verify the signature of a newly published pnpm/yarn release after npm rotated its… |
| E404 |
npm ERR! code E404 — 404 Not Found: package@version is not in this registry |
npm asked the registry for a package (or version) that doesn’t exist there — a typo, a private/scoped package… |
| ERESOLVE |
npm ERR! code ERESOLVE — unable to resolve dependency tree |
npm 7+ found conflicting peer dependency requirements and refuses to install a broken tree. |
| npm ci out of sync |
npm ERR! `npm ci` can only install packages when your package.json and package-lock.json are in sync |
package-lock.json doesn’t match package.json, so npm ci refuses to install. |
| gyp ERR! |
gyp ERR! build error / node-gyp rebuild failed |
A dependency with native C/C++ code couldn’t compile — missing build tools, Python, or an unsupported Node ve… |
| ELSPROBLEMS |
npm ERR! code ELSPROBLEMS — invalid / extraneous / missing packages in npm ls |
npm ls found the installed tree doesn’t match package.json and the lockfile. |
| ETARGET |
npm ERR! code ETARGET — No matching version found for package@^9.9.9 |
The version range in package.json doesn’t match any published version of the package. |
| ENOTFOUND |
npm ERR! code ENOTFOUND — request to https://registry.npmjs.org/x failed, reason: getaddrinfo ENOTFOUND registry.npmjs.org |
npm couldn’t resolve the registry hostname. |
| ELIFECYCLE |
npm ERR! code ELIFECYCLE / Command failed with exit code 1 |
An npm script (build, start, test, postinstall) exited with an error. ELIFECYCLE is only the wrapper — the re… |
| EROFS |
npm ERR! code EROFS — EROFS: read-only file system |
npm tried to write to a read-only location (read-only container filesystem, mounted volume, or system path). |
| npm git dependency error |
npm ERR! code 128 — An unknown git error occurred (git dependency install) |
npm failed to fetch a dependency that points to a Git repository. |
| EJSONPARSE |
npm ERR! code EJSONPARSE — Failed to parse json / Unexpected token in JSON at position |
package.json (or package-lock.json) contains invalid JSON. |
| SELF_SIGNED_CERT_IN_CHAIN |
npm ERR! code SELF_SIGNED_CERT_IN_CHAIN — request to https://registry.npmjs.org/ failed, reason: self signed certificate in certificate chain |
A corporate proxy or antivirus is intercepting HTTPS, and npm doesn’t trust its certificate. |
| ENOENT |
npm ERR! enoent ENOENT: no such file or directory, open '/path/package.json' |
npm ran in a directory without a package.json. |
| old lockfile |
npm WARN old lockfile — The package-lock.json file was created with an old version of npm, so supplemental metadata must be fetched |
The lockfile is lockfileVersion 1 (npm 6) and npm 7+ is upgrading it. |
| EPUBLISHCONFLICT |
npm ERR! 403 — You cannot publish over the previously published versions: 1.2.3 |
That version number has already been published (or unpublished) and can’t be reused. |
| E402 |
npm ERR! code E402 — 402 Payment Required - PUT https://registry.npmjs.org/@scope%2fpkg - You must sign up for private packages |
You published a scoped package without --access public, so npm tried to publish it as private. |
| E403 |
npm ERR! code E403 — 403 Forbidden - PUT https://registry.npmjs.org/x - You do not have permission to publish |
The registry refused the operation — the package name is taken, you lack publish rights, or 2FA/policies bloc… |
| npx executable |
npm ERR! could not determine executable to run |
npx couldn’t find a binary to run for that package. |
| tarball corrupted |
npm WARN tar TAR_ENTRY_ERROR / npm ERR! tarball data for x seems to be corrupted |
A downloaded package tarball is damaged — cache corruption or a network/proxy problem. |
| script command not found |
sh: vite: command not found (npm script) |
A tool used in an npm script isn’t installed in node_modules/.bin. |
| EACCES |
npm ERR! code EACCES — permission denied |
npm can’t write to a directory — usually global installs into a root-owned folder. |
| ECONNRESET |
npm ERR! code ECONNRESET — network aborted / socket hang up |
The connection to the registry was reset mid-download. |
| npm ETIMEDOUT |
npm ERR! code ETIMEDOUT — network request to https://registry.npmjs.org/x failed, reason: connect ETIMEDOUT |
npm couldn’t reach the registry in time — network, proxy or firewall issue. |
| npm ci no lockfile |
npm ERR! The `npm ci` command can only install with an existing package-lock.json or npm-shrinkwrap.json |
npm ci needs a committed lockfile and didn’t find one. |
| EBADPLATFORM |
npm ERR! code EBADPLATFORM — notsup Unsupported platform for fsevents: wanted {"os":"darwin"} (current: {"os":"linux"}) |
A package restricted to certain OS/CPU was installed as a required (not optional) dependency on another platf… |
| EEXIST |
npm ERR! code EEXIST — EEXIST: file already exists, symlink '../lib/node_modules/x/bin/x' -> '/usr/local/bin/x' |
A global install can’t create its command link because a file with that name already exists. |
| EINTEGRITY |
npm ERR! code EINTEGRITY — sha512 integrity checksum failed |
A downloaded package’s hash doesn’t match the integrity value in package-lock.json — a corrupted cache, a cha… |
| ENEEDAUTH |
npm ERR! code ENEEDAUTH — need auth This command requires you to be logged in |
npm needs credentials (publishing, private packages) but none are configured for that registry. |
| UNABLE_TO_GET_ISSUER_CERT_LOCALLY |
npm ERR! code UNABLE_TO_GET_ISSUER_CERT_LOCALLY |
npm can’t verify the registry’s certificate chain — missing intermediate or intercepted connection. |
| Missing script |
npm ERR! Missing script: "start" |
The script name you ran isn’t defined in package.json "scripts". |
| npm WARN deprecated |
npm WARN deprecated package@1.2.3: This package is no longer supported. |
A dependency (often a transitive one) is deprecated by its author. |
| invalid ELF header |
Error: /app/node_modules/bcrypt/lib/binding/bcrypt_lib.node: invalid ELF header |
A native module compiled for macOS/Windows is being loaded on Linux. |
| rollup native module |
Error: Cannot find module @rollup/rollup-linux-x64-gnu. npm has a bug related to optional dependencies |
Rollup’s (and Vite’s) platform-specific optional dependency wasn’t installed — an npm optional-dependency bug… |
| No Xcode or CLT |
gyp: No Xcode or CLT version detected! |
node-gyp on macOS can’t find the Xcode Command Line Tools to compile native modules. |
| ENOTEMPTY |
npm ERR! code ENOTEMPTY — ENOTEMPTY: directory not empty, rename |
npm couldn’t rename a folder in node_modules because it wasn’t empty — usually a corrupted or concurrently mo… |
| Invalid Version |
npm ERR! Invalid Version: (semver parse error) |
A package.json or lockfile contains a version string that isn’t valid semver. |
| yarn not found |
yarn: command not found |
Yarn isn’t installed (or not enabled through Corepack) on this machine. |
| sharp module |
Error: Could not load the "sharp" module using the linux-x64 runtime |
sharp’s native binary for this OS/CPU isn’t installed — usually node_modules installed on another platform (M… |
| E401 |
npm ERR! code E401 — Unable to authenticate, need: Basic realm / Incorrect or missing password |
The registry rejected your credentials — missing, expired or wrong auth token. |
| workspace: protocol |
npm ERR! code EUNSUPPORTEDPROTOCOL — Unsupported URL Type "workspace:": workspace:* |
npm met the workspace: protocol used by pnpm/yarn, which npm doesn’t support. |
| npm update check failed |
npm update check failed — Try running with sudo or get access to the local update config store |
npm’s update notifier couldn’t write its config — usually root-owned files in ~/.config from a past sudo npm. |
| config global deprecated |
npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead. |
A deprecation warning printed by npm 8.11–8.12 for the --global flag. |
| esbuild wrong platform |
You installed esbuild for another platform than the one you're currently using. |
node_modules contains esbuild’s binary for a different OS/CPU. |
| ERR_PNPM_OUTDATED_LOCKFILE |
ERR_PNPM_OUTDATED_LOCKFILE Cannot install with "frozen-lockfile" because pnpm-lock.yaml is not up to date with package.json |
pnpm’s lockfile doesn’t match package.json, and CI installs with a frozen lockfile. |
| ENOSPC |
Error: ENOSPC: System limit for number of file watchers reached |
Linux ran out of inotify watches — dev servers watching large projects hit the limit. |
| EOTP |
npm ERR! code EOTP — This operation requires a one-time password from your authenticator |
Your npm account has 2FA for writes and no one-time password was supplied. |
| YN0028 |
YN0028: The lockfile would have been modified by this install, which is explicitly forbidden. |
Yarn Berry’s immutable install in CI found the lockfile needs changes. |
| cb() never called |
npm ERR! cb() never called! |
An old npm crash during install — usually network/cache corruption. |