I am making web scraping site,
and I want get Tags in URL , but they are dynamic sources.
so I can't touch only Cheerio.
people recommended Puppeteer. and my problem was starting
first. I could see Module not found:
Error: Can't resolve 'https' in '/Users/Documents/myMac/Study/bookMarks/node_modules/puppeteer-core/lib/cjs/puppeteer/node'
and also they couldn't find out os, path .....
so I add (I use yarn) webpack and cli
second. I set the webpack.config.js for fallback
resolve:{
fallback:{
"fs":false,
"os": require.resolve("os-browserify/browser"),
"path": require.resolve("path-browserify"),
"https": require.resolve("https-browserify"),
"stream": false,
"zlib": false ,
"crypto": false,
"constants": false,
}
}
because the Err-Message said
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 }
but the err messages still there when I yarn start
Third. I thought if the config didn't set .
so I did ' $ webpack --config webpack.config.js'
I couldn't see the err
but still when I did yarn start, problem are there
4th. I add fs, os, http..... (in the err's module name) using yarn
I can see the dependencies
"os": "^0.1.2", "path": "^0.12.7",
and added
"browser": {
"crypto": false,
"fs": false,
"path": false,
"os": false,
"net": false,
"stream": false,
"tls": false
}
setting in package.json
but,,
.
.
.
ERROR in ./node_modules/puppeteer-core/lib/cjs/puppeteer/node/FirefoxLauncher.js 43:29-42
Module not found: Error: Can't resolve 'fs' in '/Users/Documents/myMac/Study/bookMarks/node_modules/puppeteer-core/lib/cjs/puppeteer/node'
ERROR in ./node_modules/puppeteer-core/lib/cjs/puppeteer/node/ProductLauncher.js 65:13-26
Module not found: Error: Can't resolve 'fs' in '/Users/Documents/myMac/Study/bookMarks/node_modules/puppeteer-core/lib/cjs/puppeteer/node'
webpack compiled with 41 errors
I am having 41 errors
5th . I removed folder the node_modules and yarn.lock
and did
$ yarn cache clean $ yarn install
it doesn't work
also I removed puppeteer-core and re-add
and i have 41 errors still
do you have another way
or
can I alternate puppeteer?
at last
this is js module using puppeteer
const puppeteer = require('puppeteer-core');
const DomParser = require('dom-parser');
async function getTagList(url) {
const tagListText = new Array();
try{
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(url);
const html = await page.content();
const parser = new DomParser();
const dom = parser.parseFromString(html);
const tagList = dom.getElementsByClassName('tag_area')[0].getElementsByTagName('a');
tagListText = Array.from(tagList).map(tag => tag.textContent);
await browser.close();
}catch(error) {
console.error(error);
}
return tagListText;
}
module.exports = { getTagList };
and I am using chatGPT. he recommended setting in webpack.config.js
Specially fallback -> fallbacks
and it can't terminal said fallbacks isn't option
I use webpack5
Related
colleagues,
I have encountered with 2 errors. Tried many solutions found in stackoverflow and www but nothing helped. I would appreciate much if you provide any suggestions.
ERROR in ./src/component/FileReaderComponent.tsx 8:11-24
Module not found: Error: Can't resolve 'fs' in 'D:\apps\ex-electron-react\src\component'
# ./src/renderer/App.tsx 8:30-73
# ./src/renderer/index.tsx 10:30-46
ERROR in ./src/component/FileReaderComponent.tsx 9:13-28
Module not found: Error: Can't resolve 'path' in 'D:\apps\ex-electron-react\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 }
# ./src/renderer/App.tsx 8:30-73
# ./src/renderer/index.tsx 10:30-46
Have node-16.15.0 and npm-8.5.5
Installed electron-react-boilerplate
Dependencies in package.json are:
"electron-debug": "^3.2.0",
"electron-log": "^4.4.7",
"electron-updater": "^5.0.1",
"react": "^18.1.0",
"react-dom": "^18.1.0",
"react-router-dom": "^6.3.0"
BrowserWindow in main.ts has
webPreferences: {
preload: app.isPackaged
? path.join(__dirname, 'preload.js')
: path.join(__dirname, '../../.erb/dll/preload.js'),
},
Created a react component
import { Component } from "react";
const fs = require("fs");
const path = require("path");
export class FileReaderComponent extends Component<any, any> {
setTabletImages = () => {
fs.readdirSync('.').forEach( (file: string) => {
const extname = path.extname( file );
const filename = path.basename( file, extname );
const absolutePath = path.resolve( 'D:\\geo\\tablets\\9x7\\temp', file );
console.log( "File : ", file );
console.log( "filename : ", filename );
console.log( "extname : ", extname );
console.log( "absolutePath : ", absolutePath);
});
}
render() {
return (
<button onClick={this.setTabletImages}>
<span>Log filenames</span>
</button>
);
}
}
repo in github
UPD 1
If I changes BrowserWindow in main.ts
webPreferences: {
nodeIntegration: true,
contextIsolation: false,
preload: app.isPackaged
? path.join(__dirname, 'preload.js')
: path.join(__dirname, '../../.erb/dll/preload.js'),
},
The issues will gone away, module fs is able to be imported but
I receive another error:
Unable to load preload script: .erb\dll\preload.js
(anonymous) # node:electron/js2c/renderer_init:73
node:electron/js2c/renderer_init:73 Error: contextBridge API can only be used when contextIsolation is enabled
at node:electron/js2c/renderer_init:45:277
at Object.exposeInMainWorld (node:electron/js2c/renderer_init:45:359)
at preload.ts:5:15
at preload.ts:21:4
at Object.<anonymous> (preload.ts:21:4)
at Object.<anonymous> (preload.ts:21:4)
at Module._compile (node:internal/modules/cjs/loader:1116:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1169:10)
at Module.load (node:internal/modules/cjs/loader:988:32)
at Module._load (node:internal/modules/cjs/loader:829:12)
UPD 2
I tried to add a line fallback: { "fs": false, path: false }, to webpack.config.base.ts the error after launch have gone but when onClick event is emitted the compiler returns error fs.readdirSync is not a function.
Following https://electron-react-boilerplate.js.org/docs/native-modules/
and https://webpack.js.org/configuration/externals/
helped me resolve the same issue for fsevents
added:
const configuration: webpack.Configuration = {
externals: [...Object.keys(externals || {}), 'fsevents'],
...
...
to my webpack.config.base.ts
I'm new to React and Azure, I'm trying to get a secret value from Azure [Key Vault]. I'm getting this compile error.
I'm using: "#azure/identity": "^2.0.4", "#azure/keyvault-secrets": "^4.4.0"
import React, { useState } from 'react';
import { SecretClient } from "#azure/keyvault-secrets";
import { DefaultAzureCredential } from "#azure/identity";
export const KV = () => {
const [secret, setSecret] = useState("");
const credential = new DefaultAzureCredential();
const client = new SecretClient("https://xxx.vault.azure.net/", credential);
client.getSecret("secretKey").then(res => { setSecret(res); });
return <>{secret}</>
}
I'm getting this error message:
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' in
'xxx\node_modules#azure\keyvault-secrets\dist-esm\keyvault-common\src'
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 }
<Add "lib": ["dom"] to your tsconfig.json, or simply add dom to an existing array in the lib property>, but I'm not using typescript. How do I do this in react?
You can find tsconfig.json inside the root folder of your react project.
If you don't have tsconfig.json, you can create the same and add "lib":["dom"] to it.
For example:
{
"extends": "../../../tsconfig.package",
"compilerOptions": {
"declarationDir": "./types",
"outDir": "./dist-esm",
"lib": ["dom"],
"resolveJsonModule": true,
"paths": {
"#azure/keyvault-secrets": ["./src/index"]
}
},
"include": [
"./src/**/*.ts",
"./test/**/*.ts",
"../keyvault-common/**/*.ts",
"samples-dev/**/*.ts"
]
}
You can refer to Where can I find tsconfig.json file in my react native project, tsconfig.json and Cannot find name 'URL'
Help me install the react-pdf package (https://github.com/diegomura/react-pdf) on create react app. I can't make changes to webpack.config. I do it according to the instructions I found here from the user River Twilight: How to update webpack config for a react project created using create-react-app?
According to the instructions of installing react-pdf
I run npm install process browserify-zlib stream-browserify util buffer assert
Created config-override.js in project root folder
Next you need to insert the following lines into the config:
const webpack = require("webpack");
module.exports = {
/* ... */
resolve: {
fallback: {
process: require.resolve("process/browser"),
zlib: require.resolve("browserify-zlib"),
stream: require.resolve("stream-browserify"),
util: require.resolve("util"),
buffer: require.resolve("buffer"),
asset: require.resolve("assert"),
}
},
plugins: [
new webpack.ProvidePlugin({
Buffer: ["buffer", "Buffer"],
process: "process/browser",
}),
]
/* ... */
}
But a) webstorm swears, b) the project is not started by the "start": "react-app-rewired start".
Errors that I get without changing the config:
Compiled with problems:X
ERROR in ./node_modules/#react-pdf/pdfkit/lib/pdfkit.browser.es.js 2:0-28
Module not found: Error: Can't resolve 'stream' in 'C:\Users\schek\Desktop\react\snitch\node_modules\#react-pdf\pdfkit\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: { "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/#react-pdf/pdfkit/lib/pdfkit.browser.es.js 4:0-24
Module not found: Error: Can't resolve 'zlib' in 'C:\Users\schek\Desktop\react\snitch\node_modules\#react-pdf\pdfkit\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: { "zlib": require.resolve("browserify-zlib") }'
- install 'browserify-zlib'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "zlib": false }
ERROR in ./node_modules/#react-pdf/png-js/lib/png-js.browser.es.js 1:0-24
Module not found: Error: Can't resolve 'zlib' in 'C:\Users\schek\Desktop\react\snitch\node_modules\#react-pdf\png-js\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: { "zlib": require.resolve("browserify-zlib") }'
- install 'browserify-zlib'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "zlib": false }
ERROR in ./node_modules/blob-stream/index.js 1:21-47
Module not found: Error: Can't resolve 'stream' in 'C:\Users\schek\Desktop\react\snitch\node_modules\blob-stream'
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/restructure/src/EncodeStream.js 23:11-28
Module not found: Error: Can't resolve 'stream' in 'C:\Users\schek\Desktop\react\snitch\node_modules\restructure\src'
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 }
These errors seems to have happened due to react-scripts v5. Took me a day to figure out a solution while using react-router v5. But it seems the best approach for now is to stay on, or revert back to v4.0.3 until v5 adds back support for node built-ins #11764 is merged and released.
This issue on Github might help.
You can use rewire to change the settings of webpack config without ejecting.
npm i rewire
I put two scripts (start.js and build.js) in a scripts folder in root directory (i.e. outside src). Then in package.json change the start and build scripts to use those.
"start": "node scripts/start.js",
"build": "node scripts/build.js",
start.js:
const rewire = require('rewire');
const webpack = require('webpack');
const defaults = rewire('react-scripts/scripts/start.js');
const webpackConfig = require('react-scripts/config/webpack.config');
//In order to override the webpack configuration without ejecting the create-react-app
defaults.__set__('configFactory', (webpackEnv) => {
let config = webpackConfig(webpackEnv);
//Customize the webpack configuration here.
config.resolve.fallback = {
...config.resolve.fallback,
process: require.resolve('process/browser'),
zlib: require.resolve('browserify-zlib'),
stream: require.resolve('stream-browserify'),
util: require.resolve('util'),
buffer: require.resolve('buffer'),
asset: require.resolve('assert'),
};
config.plugins = [
...config.plugins,
new webpack.ProvidePlugin({
Buffer: ['buffer', 'Buffer'],
process: 'process/browser',
}),
];
return config;
});
build.js:
const rewire = require('rewire');
const webpack = require('webpack');
const defaults = rewire('react-scripts/scripts/build.js');
//In order to override the webpack configuration without ejecting the create-react-app
const config = defaults.__get__('config');
//Customize the webpack configuration here.
config.resolve.fallback = {
...config.resolve.fallback,
process: require.resolve('process/browser'),
zlib: require.resolve('browserify-zlib'),
stream: require.resolve('stream-browserify'),
util: require.resolve('util'),
buffer: require.resolve('buffer'),
asset: require.resolve('assert'),
};
config.plugins = [
...config.plugins,
new webpack.ProvidePlugin({
Buffer: ['buffer', 'Buffer'],
process: 'process/browser',
}),
];
This is a combination of this post and the readme you already refered to.
...and ofcourse you also need the once you already had:
npm install process browserify-zlib stream-browserify util buffer assert
I am trying to use Playfab SDK on my React project, but no success yet..
I can't find well explained documentation for it.
created a react app with:
npx create-react-app playfabtest
installing PlayFab SDK for nodejs:
npm install playfab-sdk
NOTE: ( there is another SDK for JavaScript (npm install playfab-web-sdk), but I am assuming that for a react app, the nodes is the correct one ?)
The documentation for those SDK
Modified the App.js file on the project with this code:
(tried in many ways actually, I put the last one tried that didn't work neither).
App.js:
// import { PlayFabClient } from './playfab-sdk/Scripts/PlayFab/PlayFabClient';
// var PlayFabClient = require('./PlayFabSdk/Scripts/PlayFab/PlayFabClient.js')
function App() {
const PlayFabClient = require('./PlayFabSdk/Scripts/PlayFab/PlayFabClient.js');
PlayFabClient.settings.titleId = '';
PlayFabClient.settings.developerSecretKey = '';
PlayFabClient.GetTitleData({ Keys: ['Sample'] }, function (error, result) {
if (error) {
console.log('Got an error: ', error);
return;
}
console.log('Reply: ', result);
});
return ...
}
After that, if I run : npm start
get this error :
error:
Compiled with problems:
ERROR in ./src/PlayFabSdk/Scripts/PlayFab/PlayFab.js 4:10-24
Module not found: Error: Can't resolve 'url' in 'D:\Github\playfabtest\src\PlayFabSdk\Scripts\PlayFab'
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 ./src/PlayFabSdk/Scripts/PlayFab/PlayFab.js 6:12-28
Module not found: Error: Can't resolve 'https' in 'D:\Github\playfabtest\src\PlayFabSdk\Scripts\PlayFab'
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 }
Would be very helpful if can explain how to make PlayfabSDK run well on a react app.
Thanks a lot!
In the context of Create React App, you need to use ES6 style import statement instead of require to import the playfab-sdk NPM package into your project. Also you need to set the settings on the PlayFab object instead of the PlayFabClient.
Example:
import { useEffect, useState } from 'react';
import { PlayFab, PlayFabClient } from 'playfab-sdk'
PlayFab.settings.titleId = process.env.REACT_APP_PLAYFAB_TITLE_ID || ''
PlayFab.settings.developerSecretKey = process.env.REACT_APP_PLAYFAB_DEVELOPER_SECRET_KEY
// continue with component implementation
const App {
// get title data
PlayFabClient.GetTitleData(...)
// etc...
}
export default App
Getting this error when using monaco editor with next js.
Have anyone resolved this?
Failed to compile
./node_modules/monaco-editor/esm/vs/base/browser/ui/actionbar/actionbar.css
Global CSS cannot be imported from within node_modules.
Read more: https://err.sh/next.js/css-npm
Location: node_modules/monaco-editor/esm/vs/base/browser/ui/actionbar/actionbar.js```
Add this webpack config fixed it for me
const withCSS = require('#zeit/next-css');
const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');
module.exports = withCSS({
webpack(config, options) {
config.plugins.push(new MonacoWebpackPlugin());
return config;
},
cssLoaderOptions: { url: false }
})
#monaco-editor/react third party helper
I'm not sure why it works, I would rather avoid third party stuff, but this is he first thing I got to work, they just package it so nicely, so here it is:
https://www.npmjs.com/package/#monaco-editor/react
https://github.com/suren-atoyan/monaco-react
you can get rid of MonacoWebpackPlugin when using that.
Key dependencies I tested with:
"dependencies": {
"#monaco-editor/react": "4.2.1",
"next": "11.0.1",
"monaco-editor": "0.26.1",
Then usage is as described on README. They expose a Editor component helper, but you can also get a monaco instance if you want.
Related:
https://dev.to/swyx/how-to-add-monaco-editor-to-a-next-js-app-ha3
https://github.com/react-monaco-editor/react-monaco-editor/issues/271
https://github.com/resourcesco/snippets/blob/master/docs/monaco-editor-with-next.md
https://github.com/react-monaco-editor/react-monaco-editor/issues/334
https://github.com/ritz078/transform/issues/282