node.js react native error module not found. create react app - node.js

I have n[enter image description here](https://i.stack.imgur.com/y1IIt.png)o idea what went wrong. I ran npm start annd got this error.
I have tried searching for the issues but the solutions I saw was not working

Related

create react app not working Module Error (from ./node_modules/postcss-loader/dist/cjs.js):

create react app is not working recently and I get this error
Node couldn't find your project's modules. Have you tried
npm i

why am I getting this "Cannot find module server.js"?

I had a Traversy Media tutorial on how to learn the MERN stack that I was following. I had the first part installed on my desktop and it was working properly. opened it back after two weeks and I am getting '/Users/mohamedsoliman/Desktop/Traversy Media/backend/server.js'
the problem here is that the folder structure should have a "backside folder" so server.js should be at "'/Users/mohamedsoliman/Desktop/Traversy Media/backend/backside/server.js'"
Not sure how can I fix this or if that's the only problem I have here ?
This image shows the directory structure I have for the project
This image shows the error I am getting
Your code is currently nodemon backend/server.js, but it should be nodemon backend/backside/server.js.
It looks like your server.js is your entry point for the app.
In that case, run the app as follows,
node backend/backside/server.js

pg-promise in Angular app gives many 'Module not found' errors

I am including pg-promise in my Angular app to make some queries.
My app is targeting browsers and I am willing to deploying it via ng build --prod.
However, when I launch the development server with Angular CLI using ng serve I get lots of errors and my app does not work since I imported pg-promise with:
import * as pgPromise from 'pg-promise';
Errors are like Module not found: Error: Can't resolve 'XXX' in 'path.
I tried to solve with the solutions provided in this answer:
Open src/tsconfig.app.json*.
Add "node" to the "types" array.
, and installing node types via npm i #types/node, but nevertheless I am still hitting the same errors.
Finally, lookig at the types declared in the pg-promise.d.ts file, I can clearly see there's an error which makes me think is the cause of the problems I am having. VScode is telling me that it Cannot find namespace 'NodeJS'.ts(2503).
Any suggestion on how I should include pg-promise in my app without all these errors?

Twilio Video Startup

I am fairly new to React and am trying to run an example to get started with understanding how Twilio interfaces with React/Node. I am currently using the repo https://github.com/twilio/twilio-video.js, and am trying to run the test > framework > twilio-video-react, but when I npm install then npm start, the server starts, but throws the error:
Failed to compile
./src/App.js
Module not found: Can't resolve 'twilio-video'
I did `npm install twilio-video`, but still throwing error. What am I missing here? Can anyone else get this example started? I want a base example with Twilio Video working with React so I can learn from there, any other resources would help, thanks!
I tried these two examples as well, but they are outdated:
https://www.twilio.com/blog/2018/03/video-chat-react.html
https://www.twilio.com/blog/2016/03/building-a-react-powered-video-chat.html
Okay, got an example up and running with a little fudging.
I followed this example: https://www.twilio.com/blog/2018/03/video-chat-react.html
But there were a few old libraries that were causing errors.
Posted a working version on my Github linked here.

JHipster - prod build is not working correctly

I worked a lot on my JHipster project. After 3 weeks I packaged the project again and tried to run the war.
The war is running but the problem is that there is a problem with the frontend. It shows the Hipster error "An error has occured :-(...".
The console logs:
Uncaught TypeError: Cannot read property 'concat' of undefined
at Module.503
I'm just confused because when I run npm start, everything works. I didn't change the webpack or package.json. I'm using the newest JH version.
I solved my issue. We are using index files in Angular. The order of the exports was not correct. We exported the module first and the module tried to access data from the index which was not exported at this time.
Hope I could help you.

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