Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.

[andremiracle]

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 you might have mixed up default and named imports.

This error happened while generating the page. Any console logs will be displayed in the terminal window.
Call Stack
ReactDOMServerRenderer.render
file:///C:/Users/Amarachukwu/Desktop/Levi/my%20projects/E-commerce/e-commerce/node_modules/react-dom/cjs/react-dom-server.node.development.js (4053:17)
ReactDOMServerRenderer.read
file:///C:/Users/Amarachukwu/Desktop/Levi/my%20projects/E-commerce/e-commerce/node_modules/react-dom/cjs/react-dom-server.node.development.js (3690:29)
Object.renderToString
file:///C:/Users/Amarachukwu/Desktop/Levi/my%20projects/E-commerce/e-commerce/node_modules/react-dom/cjs/react-dom-server.node.development.js (4298:27)
Object.renderPage
file:///C:/Users/Amarachukwu/Desktop/Levi/my%20projects/E-commerce/e-commerce/node_modules/next/dist/server/render.js (751:45)
Object.defaultGetInitialProps
file:///C:/Users/Amarachukwu/Desktop/Levi/my%20projects/E-commerce/e-commerce/node_modules/next/dist/server/render.js (389:51)
Function.getInitialProps
node_modules\next\dist\pages_document.js (145:19)
Object.loadGetInitialProps
file:///C:/Users/Amarachukwu/Desktop/Levi/my%20projects/E-commerce/e-commerce/node_modules/next/dist/shared/lib/utils.js (69:29)
renderDocument
file:///C:/Users/Amarachukwu/Desktop/Levi/my%20projects/E-commerce/e-commerce/node_modules/next/dist/server/render.js (764:48)
Object.renderToHTML
file:///C:/Users/Amarachukwu/Desktop/Levi/my%20projects/E-commerce/e-commerce/node_modules/next/dist/server/render.js (828:34)
runMicrotasks

[steisaden]

I had the same error and was able to fix it by correcting my import module at the top of the file.

[muskan-Bansal]

try this in the StateContext.js file

const Context = createContext({});