You have to inform heroku where to start : missing script: start. In your package.json, you should have something like this: “scripts”: { “start”: “node index.js” } Where index.js is your entry point. As an alternative, you can specify in Procfile: web: node index.js
You need to install web vitals. Open your terminal and run the following command: npm i web-vitals –save-dev Also, deleting the whole thing and reinstalling might work, but that’s a longer process.
I ran into a problem with this same symptom after upgrading all of my node modules including react and redux, but in particular react-dev-utils to v8.0.0. The createCompiler() function has been changed to expect an object rather than multiple parameters (I guess this will provide greater flexibility in the future). I changed my start.js from: … Read more
You have to set your execution policy to Unrestricted not RemoteSigned. According to Set-ExecutionPolicy: RemoteSigned. Requires that all scripts and configuration files downloaded from the Internet are signed by a trusted publisher. The default execution policy for Windows server computers. Since 99% of all PowerShell scripts are unsigned, 99% of the time you will not … Read more
You can install @babel/runtime to fix the problem: Using npm: npm install –save @babel/runtime Using yarn: yarn add @babel/runtime
This can be achieved by including a couple of additional packages in your project. Additional packages Install http-server: $ npm install http-server –save-dev and concurrently: $ npm install concurrently –save-dev npm scripts Add the following open script to package.json: “scripts”: { “start”: “npm run open”, “open”: “concurrently \”http-server -a localhost -p 1234\” \”open http://localhost:1234/build\”” } … Read more
expo r -c According to this forum post from an Expo dev, that’s the command to start it cache clean EDIT: They have changed it from exp r -c to expo start -c
It seems yarn run start is the equivalent of npm start, which runs the script inside the start field of the script field in package.json
If you want to update all global packages npm update -g If you want to update specific global package npm update -g <package_name>
Step 1: $ npm cache clean –force Step 2: Delete node_modules by $ rm -rf node_modules (rmdir /S /Q node_modules in windows) folder or delete it manually by going into the directory and right-click > delete / move to trash. If you are not updating your packages you can delete the package-lock.json file too. Step … Read more