Error map

injection "Symbol(router)" not found / useRouter() called without router Vue Router: [Vue warn]: injection "Symbol(router)" not found. / Cannot read properties of undefined (reading 'push')

Vue · layer 1, On your device

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1 · On your device 4 · Application & API 7 · Build & delivery
injection "Symbol(router)" not found / useRouter() called without router — Vue Router: [Vue warn]: injection "Symbol(router)" not found. / Cannot read properties of undefined (reading 'push') (Vue)injection "…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…[Vue warn]: injection "x" not found — Vue: [Vue warn]: injection "theme" not found. (Vue)[Vue warn]: injecti…404 on page refresh (history mode) — Browser: Cannot GET /users/42 — refreshing a Vue Router history-mode page returns 404 (Vue)404 on page refresh…[Vue Router warn]: No match found for location with path — Vue Router: [Vue Router warn]: No match found for location with path "/users/42" (Vue)[Vue Router warn]: …NavigationDuplicated: Avoided redundant navigation to current location — Vue Router: Uncaught (in promise) NavigationDuplicated: Avoided redundant navigation to current location: "/home" (Vue)NavigationDuplicate…next() called multiple times in navigation guard — Vue Router: [Vue Router warn]: The "next" callback was called more than once in one navigation guard when going from "/a" to "/b" (Vue)next() called multi…Vite: Failed to parse source / Unknown file extension ".vue" — Vite/Vue: [plugin:vite:import-analysis] Failed to parse source for import analysis — you may need to install appropriate plugins to handle the .vue file format (Vue)Vite: Failed to par…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…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]: Extraneous non-props attributes — Vue: [Vue warn]: Extraneous non-props attributes (class) were passed to component but could not be automatically inherited because component renders fragment or text root nodes (Vue)[Vue warn]: Extrane…[Vue warn]: Invalid prop: type check failed — Vue: [Vue warn]: Invalid prop: type check failed for prop "count". Expected Number with value 5, got String with value "5" (Vue)[Vue warn]: Invalid…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 …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…You have a Server Component that imports next/router. Use next/navigation instead — Next.js: You have a Server Component that imports next/router. Use next/navigation instead (Next.js)You have a Server C…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…[Vue warn]: Duplicate keys found during update — Vue: [Vue warn]: Duplicate keys found during update: "5", possible duplicate or missing keys (Vue)[Vue warn]: Duplica…

Directly related (7)

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).

[Vue warn]: injection "x" not foundVue

Vue: [Vue warn]: injection "theme" not found.

`inject("theme")` ran but no ancestor provided it.

404 on page refresh (history mode)Vue

Browser: Cannot GET /users/42 — refreshing a Vue Router history-mode page returns 404

In history mode the server must serve `index.html` for all routes; otherwise direct URLs/refreshes hit non-existent files.

[Vue Router warn]: No match found for location with pathVue

Vue Router: [Vue Router warn]: No match found for location with path "/users/42"

The router has no route record matching that path (typo, missing route, or case/base issue).

NavigationDuplicated: Avoided redundant navigation to current locationVue

Vue Router: Uncaught (in promise) NavigationDuplicated: Avoided redundant navigation to current location: "/home"

`router.push` to the route you're already on, rejecting the promise (Vue Router 3.1+).

next() called multiple times in navigation guardVue

Vue Router: [Vue Router warn]: The "next" callback was called more than once in one navigation guard when going from "/a" to "/b"

A navigation guard called `next()` more than once, which breaks navigation.

Vite: Failed to parse source / Unknown file extension ".vue"Vue

Vite/Vue: [plugin:vite:import-analysis] Failed to parse source for import analysis — you may need to install appropriate plugins to handle the .vue file format

Vite can't process `.vue` files because the Vue plugin isn't installed/enabled.

Two steps away (18)

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.

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]: Extraneous non-props attributesVue

Vue: [Vue warn]: Extraneous non-props attributes (class) were passed to component but could not be automatically inherited because component renders fragment or text root nodes

Attributes (class, style, listeners) passed to a component can't be applied because the component has multiple root nodes.

[Vue warn]: Invalid prop: type check failedVue

Vue: [Vue warn]: Invalid prop: type check failed for prop "count". Expected Number with value 5, got String with value "5"

A prop received a value of the wrong type.

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.

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.

You have a Server Component that imports next/router. Use next/navigation insteadNext.js

Next.js: You have a Server Component that imports next/router. Use next/navigation instead

`next/router` (Pages Router) was imported in an App Router component.

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.

[Vue warn]: Duplicate keys found during updateVue

Vue: [Vue warn]: Duplicate keys found during update: "5", possible duplicate or missing keys

Items in a `v-for` list share the same `:key`, which breaks Vue's diffing.

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Popular: 500403400ORA-009331064Critical errorFileNotFoundException assemblyTypeError