Error map

[vuex] unknown mutation type / unknown action type Vuex: [vuex] unknown mutation type: SET_USER / [vuex] unknown action type: fetchUser

Vue · layer 1, On your device

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Centre: this error. First ring: errors it is linked with (7). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.

1 · On your device 4 · Application & API 7 · Build & delivery
[vuex] unknown mutation type / unknown action type — Vuex: [vuex] unknown mutation type: SET_USER / [vuex] unknown action type: fetchUser (Vue)[vuex] unkn…Failed to resolve component — Vue: [Vue warn]: Failed to resolve component: x (Vue)Failed to resolve c…Avoid mutating a prop directly — Vue: [Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders (Vue)Avoid mutating a pr…getActivePinia() was called but there was no active Pinia — Pinia: Error: [🍍]: "getActivePinia()" was called but there was no active Pinia. Are you trying to use a store before calling "app.use(pinia)"? (Vue)getActivePinia() wa…Error: [vuex] do not mutate vuex store state outside mutation handlers — Vuex (strict mode): Error: [vuex] do not mutate vuex store state outside mutation handlers. (Vue)Error: [vuex] do no…Nuxt: Failed to fetch dynamically imported module (after deploy) — Nuxt: [nuxt] error caught during app initialization TypeError: Failed to fetch dynamically imported module / Loading chunk failed (Vue)Nuxt: Failed to fet…Nuxt 404: Page not found (route/file naming) — Nuxt: 404 Page not found: /blog/my-post / [Vue Router warn]: No match found for location with path (Vue)Nuxt 404: Page not …Nuxt/Vite: Failed to resolve import "~/..." or "@/..." — Nuxt: [vite] Internal server error: Failed to resolve import "~/components/Foo.vue" from "pages/index.vue". Does the file exist? (Vue)Nuxt/Vite: Failed t…refs on function components — Warning: Function components cannot be given refs. Attempts to access this ref will fail. Did you mean to use React.forwardRef()? (React)refs on function co…Property was accessed during render but is not defined — Vue: [Vue warn]: Property "x" was accessed during render but is not defined on instance (Vue)Property was access…[Vue warn]: Component is missing template or render function — Vue: [Vue warn]: Component is missing template or render function. (Vue)[Vue warn]: Compone…non-boolean attribute — Warning: Received `true` for a non-boolean attribute `x`. (React)non-boolean attribu…key is not a prop — Warning: `key` is not a prop. Trying to access it will result in `undefined` being returned. (React)key is not a propTS2741: Property is missing in type but required in type — TypeScript: error TS2741: Property 'email' is missing in type '{ name: string; }' but required in type 'User'. (TypeScript)TS2741: Property is…ENOENT — npm ERR! enoent ENOENT: no such file or directory, open '/path/package.json' (npm)ENOENTyarn not found — yarn: command not found (npm)yarn not foundTarget container is not a DOM element — Error: createRoot(...): Target container is not a DOM element. (React)Target container is…[Vue warn]: Set operation on key failed: target is readonly — Vue: [Vue warn]: Set operation on key "name" failed: target is readonly. (Vue)[Vue warn]: Set ope…Unexpected token < — SyntaxError: Unexpected token '<' (HTML served instead of JavaScript) (JavaScript)Unexpected token <MIME type not executable — Refused to execute script from 'x' because its MIME type ('text/html') is not executable (JavaScript)MIME type not execu…ChunkLoadError — ChunkLoadError: Loading chunk 123 failed. (JavaScript)ChunkLoadErrorpath-to-regexp — TypeError: Missing parameter name at 1 (path-to-regexp) (Node.js)path-to-regexpNo routes matched — No routes matched location "/x" (React)No routes matchedNextRouter was not mounted — Error: NextRouter was not mounted. (React)NextRouter was not …Vite failed to resolve import — [vite] Internal server error: Failed to resolve import "x" from "src/App.jsx". Does the file exist? (React)Vite failed to reso…Could not Fast Refresh — [vite] hmr invalidate … Could not Fast Refresh. Export is incompatible. (React)Could not Fast Refr…Module not found: Can't resolve 'x' (Next.js build) — Next.js: Module not found: Can't resolve '@/components/Button' / 'lodash' in '/app/src' (Next.js)Module not found: C…

Directly related (7)

Failed to resolve componentVue

Vue: [Vue warn]: Failed to resolve component: x

The template uses a component tag that isn’t registered or imported where it’s used.

Avoid mutating a prop directlyVue

Vue: [Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders

A child component assigned to a prop. Props flow one way — the parent owns the value.

getActivePinia() was called but there was no active PiniaVue

Pinia: Error: [🍍]: "getActivePinia()" was called but there was no active Pinia. Are you trying to use a store before calling "app.use(pinia)"?

A store was used before Pinia was installed or outside a component context (router guards, plain modules).

Error: [vuex] do not mutate vuex store state outside mutation handlersVue

Vuex (strict mode): Error: [vuex] do not mutate vuex store state outside mutation handlers.

Store state was modified directly (in a component or action) while strict mode is on.

Nuxt: Failed to fetch dynamically imported module (after deploy)Vue

Nuxt: [nuxt] error caught during app initialization TypeError: Failed to fetch dynamically imported module / Loading chunk failed

A browser tab running the old build requests chunk files that were replaced by a new deployment.

Nuxt 404: Page not found (route/file naming)Vue

Nuxt: 404 Page not found: /blog/my-post / [Vue Router warn]: No match found for location with path

Nuxt's file-based router has no page matching the URL (wrong file/folder names or missing param syntax).

Nuxt/Vite: Failed to resolve import "~/..." or "@/..."Vue

Nuxt: [vite] Internal server error: Failed to resolve import "~/components/Foo.vue" from "pages/index.vue". Does the file exist?

Vite couldn't resolve an alias import — the file doesn't exist at that path or the alias isn't defined.

Two steps away (19)

refs on function componentsReact

Warning: Function components cannot be given refs. Attempts to access this ref will fail. Did you mean to use React.forwardRef()?

A ref was passed to a function component that doesn’t forward it.

Property was accessed during render but is not definedVue

Vue: [Vue warn]: Property "x" was accessed during render but is not defined on instance

The template references a variable/function that the component doesn’t expose.

[Vue warn]: Component is missing template or render functionVue

Vue: [Vue warn]: Component is missing template or render function.

A component object has neither `template` nor `render`, or an SFC import resolved wrongly.

non-boolean attributeReact

Warning: Received `true` for a non-boolean attribute `x`.

A boolean was passed to a DOM attribute that expects a string, or a custom prop leaked through to a DOM element.

key is not a propReact

Warning: `key` is not a prop. Trying to access it will result in `undefined` being returned.

A component tried to read props.key, which React reserves and never passes down.

TS2741: Property is missing in type but required in typeTypeScript

TypeScript: error TS2741: Property 'email' is missing in type '{ name: string; }' but required in type 'User'.

An object lacks one required property of the target type.

ENOENTnpm

npm ERR! enoent ENOENT: no such file or directory, open '/path/package.json'

npm ran in a directory without a package.json.

yarn not foundnpm

yarn: command not found

Yarn isn’t installed (or not enabled through Corepack) on this machine.

Target container is not a DOM elementReact

Error: createRoot(...): Target container is not a DOM element.

The element passed to createRoot/render doesn’t exist when the script runs.

[Vue warn]: Set operation on key failed: target is readonlyVue

Vue: [Vue warn]: Set operation on key "name" failed: target is readonly.

You mutated a readonly reactive object (props, `readonly()`, `shallowReadonly`, or a frozen/store state).

Unexpected token <JavaScript

SyntaxError: Unexpected token '<' (HTML served instead of JavaScript)

The browser loaded a .js file but received HTML (an error page or the SPA index.html).

MIME type not executableJavaScript

Refused to execute script from 'x' because its MIME type ('text/html') is not executable

The browser fetched a script but the server labelled it text/html (usually an error page), so it refused to run it.

ChunkLoadErrorJavaScript

ChunkLoadError: Loading chunk 123 failed.

A lazily loaded JavaScript chunk couldn’t be downloaded — usually because a new deployment removed the old hashed files.

path-to-regexpNode.js

TypeError: Missing parameter name at 1 (path-to-regexp)

An Express 5 (path-to-regexp v8) route uses old wildcard syntax like '*' or '/:id?'.

No routes matchedReact

No routes matched location "/x"

React Router found no route definition for the current URL.

NextRouter was not mountedReact

Error: NextRouter was not mounted.

next/router’s useRouter was used inside the App Router (app/ directory), which uses next/navigation instead.

Vite failed to resolve importReact

[vite] Internal server error: Failed to resolve import "x" from "src/App.jsx". Does the file exist?

Vite couldn’t find an imported file or package.

Could not Fast RefreshReact

[vite] hmr invalidate … Could not Fast Refresh. Export is incompatible.

Fast Refresh fell back to a full reload because the file exports non-components alongside components.

Module not found: Can't resolve 'x' (Next.js build)Next.js

Next.js: Module not found: Can't resolve '@/components/Button' / 'lodash' in '/app/src'

Webpack/Turbopack couldn't resolve an import — wrong path/alias, missing dependency or case mismatch.

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