Cant't Resolve URL Azure Keyvault in React - reactjs

I am working on adding a secret key to my react app. When I import the dependencies I get this error
ERROR in ./node_modules/#azure/keyvault-secrets/dist-esm/keyvault-common/src/parseKeyvaultIdentifier.js 3:0-27
Module not found: Error: Can't resolve 'url'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }

ERROR in ./node_modules/#azure/keyvault-secrets/dist-esm/keyvault-common/src/parseKeyvaultIdentifier.js 3:0-27 Module not found: Error: Can't resolve 'url'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default. This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to: - add a fallback
'resolve.fallback: { "url": require.resolve("url/") }' - install 'url'
If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "url": false }
Webpack 5 is the main source of the issue. It doesn't preload the Node.js polyfill.
To resolve this issue, try install npm install url, and add it into webpack.config.js:
module.exports = {
// ...
resolve: {
fallback: {
url: require.resolve("url/")
}
}
// ...
};
For reference : Resolve | webpack
Alternatively, Try to remove complete dependency tree and rebuild it using npm and react-scripts in a package. At least until I find a suitable solution, everything runs smoothly with json version 4.0.3.
And u can also fix this issue through
npm audit fix --force
For reference :
reactjs - Can't resolve 'url' in node_modules error when trying to access Azure Key Vault with React

Related

Initially I was running a React project and it was running fine. All of a sudden this error showed up. I slogged for hours but can't solve it

Module not found: Error: Can't resolve 'url' in 'C:\Users\91702\Desktop\react-validation\node_modules\serve-static'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
ERROR in ./node_modules/zlib/lib/zlib.js 1:0-43
Module not found: Error: Can't resolve './zlib_bindings' in 'C:\Users\91702\Desktop\react-validation\node_modules\zlib\lib'
Delete node_modules Folder & package-lock.json
Do npm install or npm i -force
Please see my answer here. Webpack5 does not polyfill core node.js modules by default anymore. The specific error you have posted would require you to npm i url and then add the fallback to the resolve block (mentioned in the linked answer) of:
resolve: {
fallback: {
"url": require.resolve("url/"),
},
Hope it helps.

Dotenv issues/error with create-react-app react-scripts

I keep getting this error in my react app
Compiled with problems: X
ERROR in ./ node_modules / dotenv / lib / main.js 1: 11 - 24
Module not found: Error: Can't resolve 'fs' in 'C: \Users\USER\Desktop\dapps\nefty\node_modules\dotenv\lib'
ERROR in ./ node_modules / dotenv / lib / main.js 3: 13 - 28
Module not found: Error: Can't resolve 'path' in 'C: \Users\USER\Desktop\dapps\nefty\node_modules\dotenv\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./ node_modules / dotenv / lib / main.js 5: 11 - 24
Module not found: Error: Can't resolve 'os' in 'C: \Users\USER\Desktop\dapps\nefty\node_modules\dotenv\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "os": require.resolve("os-browserify/browser") }'
- install 'os-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "os": false }
I after tried following the instruction provided by creating webpack.config.js and adding the fallback as show below
module.exports = {
resolve: {
fallback: { "path": require.resolve("path-browserify") },
},
}
There is no difference. I checked a similar issue on their github page and couldn't find a working fix(most were comments emphasizing the problem that didn't even point to a reasonable working solution)
Thanks to #user3133, i was able to understand the real issue. It seems dotenv should only be used in backend application like nodejs and not frontend apps like react.
When the error came up, it didn't point to where the error originated from, so I was basically "lost in the blizzard". I was able to figure out that the error came from referencing dotenv in the src directory which is the domain of react which overseas all of your react code.
So basically I was able to fix the issue by removing all lines of code that referenced dotenv in the src dir eg:
require('dotenv').config();
Note that it is okay to put it anywhere else outside the src directory.
Fun fact: react has it's own dotenv, which you can access by just putting REACT_APP_ in front of your env variable.
Read more here: Is it possible to use dotenv in a react project?

How to create React App including Web3 using create-react-app? I am getting Module not found Error. BREAKING CHANGE: webpack < 5 used

I am new to Web3 and I am trying to create a react app integrated with web3. Below are the steps I followed in Ubuntu.
create-react-app app_name
cd app_name
npm i --save web3
npm start
and everything worked fine, I got the react app home page.
Now, as soon as I put the following line of code in the App.js the app breaks and I get the following long error. (See below, row 5)
import Web3 from "web3";
The error I get is as follows.
Compiled with problems:X
ERROR in ./node_modules/cipher-base/index.js 3:16-43
Module not found: Error: Can't resolve 'stream' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/cipher-base'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "stream": false }
ERROR in ./node_modules/eth-lib/lib/bytes.js 9:193-227
Module not found: Error: Can't resolve 'crypto' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/eth-lib/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/ethereumjs-util/dist.browser/account.js 71:31-48
Module not found: Error: Can't resolve 'assert' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/ethereumjs-util/dist.browser'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "assert": require.resolve("assert/") }'
- install 'assert'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "assert": false }
ERROR in ./node_modules/ethereumjs-util/dist.browser/address.js 14:31-48
Module not found: Error: Can't resolve 'assert' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/ethereumjs-util/dist.browser'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "assert": require.resolve("assert/") }'
- install 'assert'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "assert": false }
ERROR in ./node_modules/ethereumjs-util/dist.browser/object.js 46:31-48
Module not found: Error: Can't resolve 'assert' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/ethereumjs-util/dist.browser'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "assert": require.resolve("assert/") }'
- install 'assert'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "assert": false }
ERROR in ./node_modules/web3-eth-accounts/lib/index.js 31:74-91
Module not found: Error: Can't resolve 'crypto' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/web3-eth-accounts/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/web3-eth-accounts/node_modules/eth-lib/lib/bytes.js 7:193-227
Module not found: Error: Can't resolve 'crypto' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/web3-eth-accounts/node_modules/eth-lib/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/web3-providers-http/lib/index.js 30:11-26
Module not found: Error: Can't resolve 'http' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/web3-providers-http/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/web3-providers-http/lib/index.js 32:12-28
Module not found: Error: Can't resolve 'https' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/web3-providers-http/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "https": false }
ERROR in ./node_modules/web3-providers-ws/lib/helpers.js 11:12-26
Module not found: Error: Can't resolve 'url' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/web3-providers-ws/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 37:11-26
Module not found: Error: Can't resolve 'http' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 39:12-28
Module not found: Error: Can't resolve 'https' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "https": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 41:9-22
Module not found: Error: Can't resolve 'os' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "os": require.resolve("os-browserify/browser") }'
- install 'os-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "os": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 43:10-24
Module not found: Error: Can't resolve 'url' in '/home/gkv/Stuff/Tutorial/Projects/react/lottery-react-new/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
I tried multiple stackoverflow post but none of them seems to have proper solution.
Error Library web3 and Webpack in react and angular [closed]
Module not found: Error: Can't resolve 'stream' in 'C:\dev\jszip-test\node_modules\jszip\lib'
I am getting this error whilr importing Web3 from web3 in react js 17.0.1.how to fix this
If someone could help that would be great. I have been struggling with this for 5 days.
Web3 github page provides a solution here: https://github.com/ChainSafe/web3.js#web3-and-create-react-app
This solution takes advantage of react-app-rewired package: https://www.npmjs.com/package/react-app-rewired
Polyfills can be installed via node-polyfill-webpack-plugin: https://www.npmjs.com/package/node-polyfill-webpack-plugin
The benefits of this solution:
no need to eject and make modifications to config file --> react-scripts build will still work
no need to downgrade react-scripts to lower versions
Run npm install #web3-react/core web3 #web3-react/injected-connector after running npm uninstall web3 and deleting package-lock.json and node_modules
You DO NOT need to downgrade react or install any polyfill plugins for this
That is because Webpack 5 no longer does auto-polyfilling for node core modules.
Simply in order to modify the webpack.config.js in Create React App, you have to run
npm run eject
this will create a config directory and inside you will have webpack.config.js.
npm i node-polyfill-webpack-plugin
then inside webpack.config.js:
const NodePolyfillPlugin = require("node-polyfill-webpack-plugin")
add this to plugins array
plugins: [
new NodePolyfillPlugin()
],
I explained how to set up with create-react-app here :
Web3 Issue : React Application not compiling
I also explained to solve with webpack:
Webpack breaking change

webpack < 5 used to include polyfills for node.js core modules by default

I am beginner to react js. Please someone provide input for below issue.
In local system react js application is working fine but when i am generating build from Jenkins compilation is failing and its throwing below error.
Module not found: Error: Can't resolve 'timers' in '/usr/src/app/src/component'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }

I am having issues importing react instagram in my project

I installed it using npm i react-instagram-embed. It however gave me an error when i tried importing it in my project using the command:
import InstagramEmbed from 'react-instagram-embed.
It return the error below
Module not found: Error: Can't resolve 'querystring' in '/home/marcos/Desktop/REACT/Instagram-clone/instagram/node_modules/react-instagram-embed/es'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "querystring": require.resolve("querystring-es3") }'
- install 'querystring-es3'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "querystring": false }

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