create-react-app

问题 I'm deploying a pretty basic front-end only React app (essentially a static site) to Heroku via an auto-deploy integration with Github. I've done this before with a more complicated app and had no issues. But now I'm getting the following output in my logs when I deploy: 2020-05-02T11:18:53.190530+00:00 app[web.1]: [34mℹ[39m [90m｢wds｣[39m: webpack output is served from 2020-05-02T11:18:53.190635+00:00 app[web.1]: [34mℹ[39m [90m｢wds｣[39m: Content not from webpack is served from /app/public

问题 This type of error creeps up when I am trying to install create react app with command line .How can I fix this problem ? C:\Users\Rohit Mishra>npx create-react-app my-app Error: EPERM: operation not permitted, mkdir 'C:\Users\Rohit' TypeError: Cannot read property 'loaded' of undefined at exit (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:98:27) at errorHandler (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:216:3) at C:\Program Files\nodejs\node

问题 This type of error creeps up when I am trying to install create react app with command line .How can I fix this problem ? C:\Users\Rohit Mishra>npx create-react-app my-app Error: EPERM: operation not permitted, mkdir 'C:\Users\Rohit' TypeError: Cannot read property 'loaded' of undefined at exit (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:98:27) at errorHandler (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:216:3) at C:\Program Files\nodejs\node

问题 All of a sudden I started getting this error when I type npx create-react-app project The error is : Invalid "exports" main target "index.js" defined in the package config /home/swaraj/.npm/_npx/8451/lib/node_modules/create-react-app/node_modules/is-promise/package.json Can anybody tell me what's this error and how to resolve it 回答1: This must mean that your package.json is broken. I just had the same problem, and it fixed for me when I recreated/edited the package.json it is trying to access

问题 I have a problem very similar to this - How do I fix missing dependency in React Hook useEffect. There is one key difference - I am passing a fetch function to a child component to be called from useEffect, so I can't simply move the function into the body of the effect. The fetch function is re-created every render and causes an infinite loop. I have other local component state that I want to cause the effect to fire. I basically have a Container Component and a Presentational component.

问题 I have two static web apps (create-react-apps) that are currently in two separate S3 buckets. Both buckets are configured for public read + static web hosting, and visiting their S3 hosted URLs correctly display the sites. Bucket 1 - First App: index.html static/js/main.js Bucket 2 - Second App: /secondapp/ index.html static/js/main.js I have setup a single Cloudfront for this - The default cloudfront origin loads FirstApp correctly, such that www.mywebsite.com loads the index.html by default

问题 I am trying to use npx create-react app but i have errors that is shown below: npm ERR! Unexpected end of Json input while parsing near '...eact-app/-/create-rea' npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\dp\AppData\Roaming\npm-cache\_logs\2018-12-06T18-42-56-293Z-debug.log Install for create-react-app@latest failed with code 1** and the log file of the error is here...! How I can get rid of this trouble?? 0 info it worked if it ends with ok 1 verbose cli [ 'C:\

问题 I'm having a lot of trouble launching this app. I finally got it to accept the passphrase for my SSH key, but then it hit me with the following response: >You are required to change your password immediately (root enforced) >Welcome to Ubuntu 18.04.1 LTS (GNU/Linux 4.15.0-30-generic x86_64) >* Documentation: https://help.ubuntu.com >* Management: https://landscape.canonical.com >* Support: https://ubuntu.com/advantage >System information as of Sat Sep 15 22:14:30 UTC 2018 >System load: 0.0

问题 I'm having a lot of trouble launching this app. I finally got it to accept the passphrase for my SSH key, but then it hit me with the following response: >You are required to change your password immediately (root enforced) >Welcome to Ubuntu 18.04.1 LTS (GNU/Linux 4.15.0-30-generic x86_64) >* Documentation: https://help.ubuntu.com >* Management: https://landscape.canonical.com >* Support: https://ubuntu.com/advantage >System information as of Sat Sep 15 22:14:30 UTC 2018 >System load: 0.0

问题 I would like to set an environment variable dynamically in an npm script. I'm using cross-env as I'm developing on Windows and the server is Unix-based. I want to initialize an environment variable with the current date ( new Date() ) so I can access and render it in my create-react-app : This works (hard-coded string): "scripts": { "start": "cross-env-shell REACT_APP_BUILD_DATE=\"currentDate\" react-scripts-ts start", } Obviously, currentDate shouldn't be a string but the result of following