× error: element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. you likely forgot to export your component from the file it
In my case (using Webpack) it was the difference between:
import {MyComponent} from '../components/xyz.js';
vs
import MyComponent from '../components/xyz.js';
The second one works while the first is causing the error. Or the opposite.
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react.development.js:315 Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got
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type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the fil
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined typescript export
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined typescript ex[prt
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element type is invalid expected a string (for built-in components) or a class/function (for composite components ) but got : object
rror: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
× Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. Check the render method of `Router.Consumer`.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. Check the render method of `NotePlayer`.
react-router Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
solve Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.'
Uncaught [Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined
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react-dom.development.js:25058 Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
react Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
[Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: number.
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Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: number. Check the render method
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"reactonrails" ReactApp: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object
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Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined reqct bootstrap
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Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
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Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. (Device)
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Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. reanimated
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React.jsx: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: object. in next js typescript
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Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined with class component
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. @material-ui/core/Menu
react-dom.development.js:25058 Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. jest function from hook
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. Check the render method of `SceneComponent`.
"Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object." nextjs
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or yo
next Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
reactdomserver.rendertostring Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got:
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. nextjs dynamic import
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. nextjs
lement type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
× Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
nextjs Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: object.
nextjs error Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
webpack bundle error Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite
Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. react router dom
React.jsx: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
× Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: boolean.
rror: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined in next js
rror: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. next link
react svg storybook Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined
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Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. transition
storybook Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
React Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined
svg Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined
react-dom.development.js:25058 Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: objec
eact.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined.importing svg
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: null.
react-dom.development.js:23965 Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
HOC Element type is invalid: expected a string (for built-in components) or a class/function (for composite components)
ype is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined
Server Error Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. Check the render method of `Router.Consumer`.
Warning: React.jsx: type is invalid -- expected a string (for built-in components) or a class/function
ement type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely fo
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react.jsx expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components)
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. ReactDOM.render(
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React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but go
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React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components)
Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined
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Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite
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Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. Check the render method of `t
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined for dynamic import in next js
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined for dynamic imort in next js
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. Check the render method of `ExpoRoot`.
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function on react fragmant
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rror: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. You likely forgot to export your component from the file it's defined in,
A rendering error occurred: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: objec
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. react
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. prop component
React.jsx: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got
×
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
element type is invalid expected a string(for built-in-components) or a class/function(for composite components) but got: undefined
Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got "jest" enzyme
Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got jest enzyme
React.createElement: type is invalid -- expected a string (for built-in components) or a
Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. semantic ui react
arning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined
uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function
react-dom.development.js?cada:23965 Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. when returning jsx
: Element type is invalid: expected a string (for built-in components) or a class/function
next js Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
react Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined
react router dom Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object
jest Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component
Warning: React.jsx: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: object.
expo Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Uncaught Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function but got: undefined
Uncaught Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function but got: undefinded
React.createElement: type is invalid -- expected a string (for built-in components)
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: <Unknown />. Did you accidentally export a JSX literal instead of a component?
Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: object. Check your code at WebView Leaflet Routing.js:369.
Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: object. Check your code at WebViewLeafletRouting.js:369.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: number.
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: <div />
type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: <ChatEngineApp />. Did you accidentally export a JSX literal instead of a component?
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. vue-native AppRegistry.runApplication('main', { rootTag });
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. AppRegistry.runApplication('main', { rootTag });
react-bootstrap Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: number
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined
Unhandled Rejection (Error): Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. next
Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Warning: React.jsx: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. You likely forgot to export your component from the file it's defined in Check the render method of
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. You likely forgot to export your component from the file it's defined in.
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: object.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined
× Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object
error in init project Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object
error in init proyetct Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object
error in init proyetctError: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object
Warning: React.jsx: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: <withRouter(Backups) />. Did you accidentally export a JSX literal instead of a component?
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: <WithStyles(ForwardRef(CardContent)) />. Did you accidentally export a JSX literal instead of a component?
React.jsx: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite component
Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
E/ReactNativeJS: Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the f
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
× Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
× Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. Check the render method of `ExpoRootComponent`.
× error: element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. you likely forgot to export your component from the file it