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TypeError: URL is not a constructor while using react-router-dom

I have been working on one of my personal projects which includes use of react-router-dom.I switched from react-router-dom v5 to v6 and errors started popping out .I have used react-router before but the error shown this time is kind of different and not able to debug the thing since a while. Why it is showing this kind of error?
I
here is my App.js
import React, { useState } from "react";
import { BrowserRouter as Router, Routes, Route } from "react-router-dom";
import Navbar from "./components/Navbar";
import StreetNode from "./components/StreetNode";
import Nodes from "./components/Nodes";
import { Scheduler } from "./components/Scheduler";
function App() {
return (
<Router>
<Navbar />
<Routes>
{/* <Route path="/" exact component={Nodes} /> */}
<Route path="/" element={<Nodes />} />
<Route path="/node/:id" element={<StreetNode />} />
<Route path="/scheduler" element={<Scheduler />} />
</Routes>
</Router>
);
}
export default App;
index.js
index.js
import React from "react";
import ReactDOM from "react-dom";
import "./index.css";
import App from "./App";
import reportWebVitals from "./reportWebVitals";
import { NodeProvider } from "./NodeContext";
ReactDOM.render(
<NodeProvider>
<App />
</NodeProvider>,
document.getElementById("root")
);
// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
reportWebVitals();
package.json
{
"name": "lightitup",
"version": "0.1.0",
"private": true,
"dependencies": {
"#craco/craco": "^6.4.2",
"#date-io/date-fns": "^2.11.0",
"#emotion/react": "^11.4.1",
"#emotion/styled": "^11.3.0",
"#mui/icons-material": "^5.2.0",
"#mui/lab": "^5.0.0-alpha.61",
"#mui/material": "^5.0.2",
"#mui/styles": "^5.0.1",
"#testing-library/jest-dom": "^5.14.1",
"#testing-library/react": "^11.2.7",
"#testing-library/user-event": "^12.8.3",
"axios": "^0.22.0",
"bootstrap": "^5.1.3",
"chart.js": "^3.6.2",
"chartjs-plugin-zoom": "^1.2.0",
"classnames": "^2.3.2",
"date-fns": "^2.27.0",
"react": "^17.0.2",
"react-chartjs-2": "^4.0.0",
"react-dom": "^17.0.2",
"react-google-charts": "^3.0.15",
"react-notifications-menu": "^1.0.6",
"react-router-dom": "^6.4.5",
"react-scripts": "4.0.3",
"web-vitals": "^1.1.2"
},
"scripts": {
"start": "craco start",
"build": "craco build",
"test": "craco test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"autoprefixer": "^9.8.8",
"postcss": "^7.0.39",
"react-circular-slider-bar": "^1.3.1",
"tailwindcss": "npm:#tailwindcss/postcss7-compat#^2.2.17"
}
}

You must wrap Router with BrowserRouter. I'm not sure if this is because of the error but you must wrap BrowserRouter anyway.

MUI 5 Cannot read properties of undefined (reading 'up'), When using makestyles

I have recently build a react app with MUI-5 and it was working fine but now i am facing a weird issue where my app won't start and i see bunch of mui errors. These errors occurred after i deleted the yarn.lock file and freshly added all packages. I have tried every solution but its not working.
Error:
MUI: The styles argument provided is invalid.
You are providing a function without a theme in the context.
Uncaught TypeError: Cannot read properties of undefined (reading 'up')
package.json file:
{
"name": "doctor",
"version": "0.1.0",
"private": true,
"dependencies": {
"#date-io/date-fns": "^2.11.0",
"#date-io/moment": "^2.11.0",
"#emotion/react": "^11.7.1",
"#emotion/styled": "^11.6.0",
"#material-ui/core": "^4.12.4",
"#mui/icons-material": "^5.2.5",
"#mui/lab": "^5.0.0-alpha.62",
"#mui/material": "^5.10.7",
"#mui/styles": "^5.10.7",
"#mui/system": "^5.10.6",
"#reduxjs/toolkit": "^1.7.1",
"#stripe/react-stripe-js": "^1.7.0",
"#stripe/stripe-js": "^1.22.0",
"#testing-library/jest-dom": "^5.14.1",
"#testing-library/react": "^12.0.0",
"#testing-library/user-event": "^13.2.1",
"#types/react-qr-reader": "^2.1.4",
"autoprefixer": "^10.4.0",
"web-vitals": "^2.1.0",
"yup": "^0.32.11"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"#types/chart.js": "^2.9.35",
"#types/file-saver": "^2.0.5",
"#types/jest": "^27.0.1",
"#types/node": "^16.7.13",
"#types/react": "^17.0.20",
"#types/react-dom": "^17.0.9",
"#types/react-redux": "^7.1.21",
"#types/react-router-dom": "^5.1.7",
"#types/react-table": "^7.7.9",
"#types/redux-logger": "^3.0.9",
"chartjs-plugin-datalabels": "^2.0.0",
"lodash": "^4.17.21"
},
"resolutions": {
"#types/react": "17.0.2",
"#types/react-dom": "17.0.2"
}
}
app.tsx file;
import React from "react";
import { ThemeProvider } from "#material-ui/core/styles";
import "./App.css";
import { loadStripe } from "#stripe/stripe-js";
import { Elements } from "#stripe/react-stripe-js";
// redux
import { Provider } from "react-redux";
import store, { persistor } from "./redux/store";
import { PersistGate } from "redux-persist/integration/react";
// Routes
import { ConnectedRouter } from "connected-react-router";
import history from "./redux/history";
import Router from "./Router";
// Theme
import { SnackbarProvider } from "notistack";
import CustomSnackbarProvider from "./providers/CustomSnackbarProvider";
import muiTheme from "./constants/theme";
import { makeStyles } from "#mui/styles";
import {
Chart as ChartJS,
CategoryScale,
LinearScale,
PointElement,
LineElement,
Title,
Tooltip,
Legend,
Filler,
BarElement,
} from "chart.js";
import ChartDataLabels from "chartjs-plugin-datalabels";
import { useLocation } from "react-router-dom";
import AccessControlWrapper from "./components/AccessControlWrapper";
ChartJS.register(
CategoryScale,
LinearScale,
PointElement,
LineElement,
Title,
Tooltip,
Legend,
BarElement,
ChartDataLabels,
Filler
);
declare var process: {
env: {
REACT_APP_STRIPE_PUBLISH_KEY: string;
REACT_APP_STRIPE_CLIENT_SECRET: string;
};
};
const stripePromise = loadStripe(process.env.REACT_APP_STRIPE_PUBLISH_KEY);
function App() {
return (
<Provider store={store}>
<PersistGate persistor={persistor} loading={null}>
<Elements stripe={stripePromise}>
<ConnectedRouter history={history}>
<ThemeProvider theme={muiTheme}>
<SnackbarProvider
maxSnack={3}
anchorOrigin={{
vertical: "top",
horizontal: "center",
}}
>
<CustomSnackbarProvider>
<AccessControlWrapper>
<Router />
</AccessControlWrapper>
</CustomSnackbarProvider>
</SnackbarProvider>
</ThemeProvider>
</ConnectedRouter>
</Elements>
</PersistGate>
</Provider>
);
}
export default App;
theme config file:
import { createTheme } from "#material-ui/core/styles";
declare module "#mui/material/styles" {
interface BreakpointOverrides {
xs: true; // removes the `xs` breakpoint
sm: true;
md: true;
lg: true;
xl: true;
xxl: true;
}
}
const theme = {
palette: {
background: {
default: "#FBFBFB",
},
primary: {
light: "#9D9DA5",
main: "#2EC2A5",
contrastText: "#fff",
},
secondary: {
light: "#ff7961",
main: "#24344B",
dark: "#ba000d",
contrastText: "#000",
},
},
};
const BREAKPOINTS = {
xs: 0,
sm: 600,
md: 900,
lg: 1200,
xl: 1536,
xxl: 1800,
};
let muiTheme = createTheme({
breakpoints: {
values: BREAKPOINTS,
},
...theme,
});
export default muiTheme;
Styles.tsx
import { Theme } from "#mui/system";
import { makeStyles } from "#mui/styles";
export const useStyles = makeStyles((theme: Theme) => ({
intro: {
padding: "0 2rem",
[theme.breakpoints.up("lg")]: {
padding: "0 4rem !important",
},
},
}));
I've been stuck with this problem for couple of days. I don't know what i am doing wrong. i have already wrapped my routes with ThemeProvider but still its throwing these errors.

According to the docs:
Using the theme context
Starting from v5, MUI no longer uses JSS as its default styling solution. If you still want to use the utilities exported by #mui/styles and they depend on the theme, you will need to provide the theme as part of the context. For this, you can use the ThemeProvider component available in #mui/styles, or, if you are already using #mui/material, you should use the one exported from #mui/material/styles so that the same theme is available for components from '#mui/material'.
So your Styles.tsx should be like:
import { Theme } from "#mui/system";
import { makeStyles } from "#mui/styles";
import { createTheme } from '#mui/material/styles';
//import muiTheme from "./constants/...";
export const useStyles = makeStyles((muiTheme) => ({
intro: {
padding: "0 2rem",
[theme.breakpoints.up("lg")]: {
padding: "0 4rem !important",
},
},
}));
And be aware:
⚠️ #mui/styles is the legacy styling solution for MUI. It depends on JSS as a styling solution, which is not used in the #mui/material anymore, deprecated in v5.
And
⚠️ #mui/styles is not compatible with React.StrictMode or React 18.
So I recommend using better solutions like styled or sx prop.

Tailwindcss does not get loaded in react application

I am using the following packages and have installed tailwindcss in the following project folder /home/admin/Desktop/Code/main_project/client/package.json:
{
"name": "react-app",
"version": "1.0",
"private": true,
"dependencies": {
"babel-eslint": "10.0.3",
"react": "^17.0.2",
"react-dom": "^17.0.2",
"react-redux": "^7.2.4",
"react-router": "^6.3.0",
"react-scripts": "3.2.0",
"redux": "^4.1.1",
"redux-thunk": "^2.3.0",
"web-vitals": "^1.0.1",
"web3": "^1.6.1",
"web3-eth-contract": "^1.5.2"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"autoprefixer": "^10.4.7",
"postcss": "^8.4.14",
"tailwindcss": "^3.0.24"
}
}
My tailwind.config.js looks like the following:
module.exports = {
content: [
"./src/**/*.{js,jsx,ts,tsx}",
],
theme: {
extend: {},
},
plugins: [],
}
As you can see my react-project lies in a subfolder.
My postcss.config.js looks like the following:
module.exports = {
plugins: {
tailwindcss: {},
autoprefixer: {},
},
}
This is my index.css:
#tailwind base;
#tailwind components;
#tailwind utilities;
In my index.js I am loading my index.css:
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import * as serviceWorker from './serviceWorker';
import store from "./redux/store";
import { Provider } from "react-redux";
ReactDOM.render(
<Provider store={store}>
<App />
</Provider>,
document.getElementById("root")
);
// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
serviceWorker.unregister();
My App.js looks like the following:
import React, { useEffect, useState, useRef } from "react";
import { useDispatch, useSelector } from "react-redux";
import { connect } from "./redux/blockchain/blockchainActions";
import { fetchData } from "./redux/data/dataActions";
import "./App.css";
function App() {
const dispatch = useDispatch();
const blockchain = useSelector((state) => state.blockchain);
const data = useSelector((state) => state.data);
const [CONFIG, SET_CONFIG] = useState({
CONTRACT_ADDRESS: "",
SCAN_LINK: "",
NETWORK: {
NAME: "",
SYMBOL: "",
ID: 0,
},
NFT_NAME: "",
SYMBOL: "",
MAX_SUPPLY: 1,
WEI_COST: 0,
DISPLAY_COST: 0,
GAS_LIMIT: 0,
MARKETPLACE: "",
MARKETPLACE_LINK: "",
SHOW_BACKGROUND: false,
});
const getData = () => {
if (blockchain.account !== "" && blockchain.smartContract !== null) {
dispatch(fetchData(blockchain.account));
}
};
const getConfig = async () => {
const configResponse = await fetch("/config/config.json", {
headers: {
"Content-Type": "application/json",
Accept: "application/json",
},
});
const config = await configResponse.json();
SET_CONFIG(config);
};
useEffect(() => {
getConfig();
}, []);
useEffect(() => {
getData();
}, [blockchain.account]);
return (
<>
<h1 className="text-3xl font-bold underline">Welcome</h1>
<>
);
}
export default App;
However, the components in my App.js do not get rendered with tailwindcss.
Any suggestions what I am doing wrong?
I appreciate your replies!

TypeError: [setState with createContext] is not a function - React

I am using React's Context API to call setCurrentUser below. But it gives me this error:
TypeError: setCurrentUser is not a function.
Upon logging console.log(useContext(globalContext)), I get the empty object {}.
I have manually converted my project from TS(where it worked by specifying setCurrentUser as type Dispatch) to JS, so I am not sure if that broke something...at least my react and react-dom packages should be current.
How do we make this work with JS? Thanks
Router.jsx - where I am calling setCurrentUser
import React, { useContext, useEffect } from "react";
import { BrowserRouter, Route, Switch } from "react-router-dom";
import LoginPg from "../pages/LoginPg/LoginPg";
import ErrorHandler from "./ErrorHandler";
import ErrorPg from "../pages/ErrorPg/ErrorPg";
import useGet from "../../server_api/useGet";
import ProtectedRoute from "./ProtectedRoute";
import HomePg from "../pages/HomePg/HomePg";
import { globalContext } from "../../store/context/globalContext";
import CalendarPg from "../pages/Calendar/CalendarPg";
function Router() {
const { currentUser, setCurrentUser } = useContext(globalContext);
const [doGet] = useGet();
let user;
console.log(useContext(globalContext)); // <==== logs: {}
useEffect(() => {
doGet("auth/authenticate", (res) => {
if (res) {
user = res.username;
setCurrentUser(res);
} else {
console.log("Router: user not authenticated");
}
});
}, []);
return (
<BrowserRouter>
<ErrorHandler>
<Switch>
<Route path="/error" component={ErrorPg} />
<Route path="/login" component={LoginPg} />
<ProtectedRoute
path="/calendar"
Component={CalendarPg}
isAuth={currentUser}
key="uniquevalue"
/>
<ProtectedRoute path="/" Component={HomePg} isAuth={currentUser} />
</Switch>
</ErrorHandler>
</BrowserRouter>
);
}
export default Router;
globalContext.jsx
import { createContext, useState } from "react";
export const globalContext = createContext({});
export default function GlobalContext(props) {
const [currentUser, setCurrentUser] = useState(null);
return (
<globalContext.Provider value={{ currentUser, setCurrentUser }}>
{props.children}
</globalContext.Provider>
);
}
package.json
{
"name": "test",
"version": "0.1.0",
"private": true,
"homepage": "/",
"dependencies": {
"#fullcalendar/daygrid": "^5.9.0",
"#fullcalendar/interaction": "^5.9.0",
"#fullcalendar/react": "^5.9.0",
"#fullcalendar/timegrid": "^5.9.0",
"#testing-library/jest-dom": "^5.11.4",
"#testing-library/react": "^11.1.0",
"#testing-library/user-event": "^12.1.10",
"antd": "^4.16.13",
"axios": "^0.21.1",
"bootstrap": "^5.1.1",
"font-awesome": "^4.7.0",
"fullcalendar": "^5.9.0",
"lodash": "^4.17.21",
"moment": "^2.29.1",
"query-string": "^4.3.4",
"react": "^17.0.2",
"react-calendar": "^3.4.0",
"react-dom": "^17.0.2",
"react-helmet": "^6.1.0",
"react-modal": "^3.14.3",
"react-router-dom": "^5.2.0",
"react-scripts": "4.0.3",
"sass": "^1.39.2",
"web-vitals": "^1.0.1"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
"cypress": "npx cypress open"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"cypress": "^7.5.0"
}
}

You need the consumer (Router) to be a child of the provider (GlobalContext).
Also your component names should start with an Upper case.
import { GlobalContext } from "../../store/context/GlobalContext";
const App = () => {
const [currentUser, setCurrentUser] = useState(DEFAULT_USER);
return (
<GlobalContext.Provider value={{ currentUser, setCurrentUser }}>
<Router />
</GlobalContext.Provider>
);
};

Weird problem in react: (C:\): Error: EBUSY: resource busy or locked, lstat 'C:\hiberfil.sys'

I'm currently working on a MERNG app, and i was doing the setup in the fronted, and, when i ran npm run start, this error suddenly appeared
Error from chokidar (C:\): Error: EBUSY: resource busy or locked, lstat 'C:\hiberfil.sys'
Compiling...
i've searched for this problem, and i found that, you should delete node_modules, then run npm intall, i tried, didn't work
This is my package.json
{
"name": "client",
"version": "0.1.0",
"private": true,
"dependencies": {
"#apollo/client": "^3.3.14",
"#testing-library/jest-dom": "^5.11.10",
"#testing-library/react": "^11.2.6",
"#testing-library/user-event": "^12.8.3",
"apollo-link-context": "^1.0.20",
"framer-motion": "^4.1.3",
"moment": "^2.29.1",
"react": "^17.0.2",
"react-dom": "^17.0.2",
"react-file-base64": "^1.0.3",
"react-redux": "^7.2.3",
"react-router-dom": "^5.2.0",
"react-scripts": "4.0.3",
"redux": "^4.0.5",
"styled-components": "^5.2.3",
"styled-icons": "^10.33.0",
"web-vitals": "^1.1.1"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}
This is my index, i put there my apolloProvider and my redux setup
import React from "react";
import ReactDOM from "react-dom";
import ApolloProvider from "./ApolloProvider";
import { Provider } from "react-redux";
import { createStore } from "redux";
import { reducer } from "./reducer";
const store = createStore(reducer);
ReactDOM.render(
<Provider store={store}>{ApolloProvider}</Provider>,
document.getElementById("root")
);
This is my apollo provider
import React from "react";
import {
ApolloClient,
InMemoryCache,
ApolloProvider,
createHttpLink
} from "#apollo/client";
import App from "./App";
const httpLink = new createHttpLink({
uri: "http://localhost:5000"
});
const client = new ApolloClient({
link: httpLink,
cache: new InMemoryCache()
});
export default (
<ApolloProvider client={client}>
<App />
</ApolloProvider>
);
What is going on with my react app? i'm mad at this because it came out of nowhere, any clue how to fix this? And thank your four time comunnity !