React server is not running through npm start - reactjs

Good Evening I am doing a project in ReactJs through npm start project is compiling but has not started, loading for several minutes via localhost 3000 on google chrome. what should I do now?

Try to install Yarn using yarn install after that run following command
yarn start

Related

Unable to find expo project - have you run yarn / npm install yet?

I'm Unable to execute the expo start command.
$ expo start
[09:43:39] Starting project at C:\Users\Subrata\Desktop\example-app
[09:43:40] Unable to find expo in this project - have you run yarn / npm install yet?
either you havent installed dependencies yet, which you can do by running npm install, or you might be outside the project folder, in which case just run cd projectName

React production build is returning 404 error

npx create-react-app app-name
cd app-name
npm start
works fine but
npm run build
cd build
serve -s build
return 404
It's inbuilt react code. I have not changed anything.
running in the development server but not in the production server.
Is there anything am I doing wrong here?

How can i solve "No project found" error when installing react

I am new to react and i am taking my first course on openclassrooms on react.
The instructor is using the command
yarn global add create-react-app
to setup but when i run the commdand i get the error below
Usage Error: No project found in /E:/Web Dev/React/react-project
i have tried to use the command below that is provided in the react documentation but i stil get the same error
yarn create react-app my-app
How can i solve the problem i have looked up on the react documentation but still cannot find the solution.
I experienced the same issue and solved it as follows:
Uninstall yarn from npm using npm uninstall -g yarn
Install Yarn from Installation - Yarn Classic
Restart PowerShell / CMD
Before performing the above steps yarn --version printed 2.0.0-rc.27 on my machine. Now it prints 1.22.4.
Having Yarn 2.x globally installed is discouraged accourding to Installation - Yarn 2.x.

How to install and run project in github

Im a newbie in Reactjs. I get project from github but cant run it though i npm install and npm run build it. Here is the project i try to install in my computer: https://github.com/iuliaL/diagonistician-ReactJS-Express-Mongoose-RestAPI
Thank you very much, << sorry but stackoverflow doesnt allow me post this question so i type some line >>
Try to follow these steps.
Git clone... git clone https://github.com/iuliaL/diagonistician-ReactJS-Express-Mongoose-RestAPI.git
Enter into project directory... cd diagonistician-ReactJS-Express-Mongoose-RestAPI
Install npm dependancy npm install
start npm server npm run build
that's all. Now browse to localhost: on browser.

Can't run mlflow standalone react server

I need to run the frontend UI on a separate server as a stand-alone react app (not with all of the mlflow python server and packages). But when I run the production build, I get the following error:
You need to enable JavaScript to run this app.
Reproduce:
git clone https://github.com/mlflow/mlflow.git
cd mlflow/mlflow/server/js
In development mode, "npm start" it works just fine:
npm install
npm start
But when I've run it in production, I am getting the above error.
npm install
npm install -g serve
npm run build
serve -s build
I tried many things searching in forums, including this one:
I am getting error in console "You need to enable JavaScript to run this app." reactjs.
but I didn't manage to make it work.

Resources