Tried to run but got error RN Version 0.61.5

[Dipak26]

SyntaxError: appfolder\node_modules\react-native-web-refresh-control\src\index.js: Unexpected token (21:6)

19 | //eslint-disable-next-line react/display-name
20 | renderScrollComponent: props => (

21 | <ScrollView
| ^
22 | {...props}
23 | //eslint-disable-next-line react/prop-types
24 | refreshControl={}

[NiciusB]

It seems like babel it's not transforming the JSX, since it's in node_modules.

Can you provide your babel and metro configs?
Or even better, a sample repo with the bug.

[Dipak26]

babel.config.js

module.exports = (api) => {
api.cache(true);

return {
presets: ['module:metro-react-native-babel-preset'],
plugins: [
'@babel/plugin-transform-runtime',
'@babel/plugin-proposal-class-properties', // Breaks fast refresh on native for some reason, left here if needed
'@babel/plugin-transform-arrow-functions',
].map(require.resolve),
};
};

metro.config.js

/**

• Metro configuration for React Native
• https://github.com/facebook/react-native
• @Format
  */

module.exports = {
transformer: {
getTransformOptions: async () => ({
transform: {
experimentalImportSupport: false,
inlineRequires: false,
},
}),
},
};

You also provided snack playground example I tried it without expo.

[NiciusB]

I've just published 1.0.2 which should fix the issue on non-expo projects.
Please follow the installation instructions on the README (https://github.com/NiciusB/react-native-web-refresh-control#install)

I know they're not exactly easy to follow but I trust you'll be able to understand them.
If the problem is fixed, or you have any other issues, please let me know

[Dipak26]

I am using yarn tool with react-native-web and according to new README Am i need to directly add it or first download the plugin and after that eject then install it from my local drive?

[NiciusB]

It doesn't really matter. If you already have the dependency, you can eject and modify the webpack config, and it should start working.

Ejecting exposes all of the webpack configuration that react-scripts handles for you. See https://github.com/facebook/create-react-app/blob/master/packages/cra-template/template/README.md#npm-run-eject

[Dipak26]

I tried it with README instruction. But I got same error Here it is my project
package.json

{
"name": "TestCrnwa",
"version": "0.1.0",
"private": true,
"scripts": {
"web": "node scripts/start.js",
"test:web": "node scripts/test.js",
"build": "node scripts/build.js",
"start": "react-native start",
"start-clean": "rm -rf $TMPDIR/react-* && watchman watch-del-all && npm start -- --reset-cache",
"test": "npm run test:web && npm run test:native",
"android": "react-native run-android",
"ios": "react-native run-ios",
"test:native": "node_modules/.bin/jest -c ./config/jest/jest.config.native.js"
},
"dependencies": {
"@babel/core": "7.9.0",
"@svgr/webpack": "4.3.3",
"@testing-library/jest-dom": "^4.2.4",
"@testing-library/react": "^9.3.2",
"@testing-library/user-event": "^7.1.2",
"@typescript-eslint/eslint-plugin": "^2.10.0",
"@typescript-eslint/parser": "^2.10.0",
"babel-eslint": "10.1.0",
"babel-jest": "^24.9.0",
"babel-loader": "8.1.0",
"babel-plugin-named-asset-import": "^0.3.6",
"babel-preset-react-app": "^9.1.2",
"camelcase": "^5.3.1",
"case-sensitive-paths-webpack-plugin": "2.3.0",
"css-loader": "3.4.2",
"dotenv": "8.2.0",
"dotenv-expand": "5.1.0",
"eslint": "^6.6.0",
"eslint-config-react-app": "^5.2.1",
"eslint-loader": "3.0.3",
"eslint-plugin-flowtype": "4.6.0",
"eslint-plugin-import": "2.20.1",
"eslint-plugin-jsx-a11y": "6.2.3",
"eslint-plugin-react": "7.19.0",
"eslint-plugin-react-hooks": "^1.6.1",
"file-loader": "4.3.0",
"fs-extra": "^8.1.0",
"html-webpack-plugin": "4.0.0-beta.11",
"identity-obj-proxy": "3.0.0",
"jest": "24.9.0",
"jest-environment-jsdom-fourteen": "1.0.1",
"jest-resolve": "24.9.0",
"jest-watch-typeahead": "0.4.2",
"mini-css-extract-plugin": "0.9.0",
"optimize-css-assets-webpack-plugin": "5.0.3",
"pnp-webpack-plugin": "1.6.4",
"postcss-flexbugs-fixes": "4.1.0",
"postcss-loader": "3.0.0",
"postcss-normalize": "8.0.1",
"postcss-preset-env": "6.7.0",
"postcss-safe-parser": "4.0.1",
"react": "^16.13.0",
"react-app-polyfill": "^1.0.6",
"react-dev-utils": "^10.2.1",
"react-dom": "^16.13.0",
"react-native": "0.61.5",
"react-native-web": "^0.12.2",
"react-native-web-refresh-control": "1.0.2",
"react-router-dom": "^5.1.2",
"react-router-native": "^5.1.2",
"react-script": "^2.0.5",
"resolve": "1.15.0",
"resolve-url-loader": "3.1.1",
"sass-loader": "8.0.2",
"semver": "6.3.0",
"style-loader": "0.23.1",
"terser-webpack-plugin": "2.3.5",
"ts-pnp": "1.1.6",
"url-loader": "2.3.0",
"webpack": "4.42.0",
"webpack-dev-server": "3.10.3",
"webpack-manifest-plugin": "2.2.0",
"workbox-webpack-plugin": "4.3.1"
},
"devDependencies": {
"@babel/plugin-proposal-class-properties": "^7.8.3",
"@babel/runtime": "^7.6.2",
"@react-native-community/eslint-config": "^0.0.5",
"babel-plugin-module-resolver": "^4.0.0",
"metro-react-native-babel-preset": "^0.58.0",
"react-test-renderer": "16.9.0"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"eslintConfig": {
"extends": "react-app"
},
"jest": {
"roots": [
"/src"
],
"collectCoverageFrom": [
"src//*.{js,jsx,ts,tsx}",
"!src//.d.ts"
],
"setupFiles": [
"react-app-polyfill/jsdom"
],
"setupFilesAfterEnv": [
"/src/setupTests.js"
],
"testMatch": [
"/src//tests//.{js,jsx,ts,tsx}",
"/src/**/.{spec,test}.{js,jsx,ts,tsx}"
],
"testEnvironment": "jest-environment-jsdom-fourteen",
"transform": {
"^.+\.(js|jsx|ts|tsx)$": "/node_modules/babel-jest",
"^.+\.css$": "/config/jest/cssTransform.js",
"^(?!.\.(js|jsx|ts|tsx|css|json)$)": "/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\]node_modules[/\\].+\.(js|jsx|ts|tsx)$",
"^.+\.module\.(css|sass|scss)$"
],
"modulePaths": [],
"moduleNameMapper": {
"^react-native$": "react-native-web",
"^.+\.module\.(css|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"web.js",
"js",
"web.ts",
"ts",
"web.tsx",
"tsx",
"json",
"web.jsx",
"jsx",
"node"
],
"watchPlugins": [
"jest-watch-typeahead/filename",
"jest-watch-typeahead/testname"
]
},
"babel": {
"presets": [
"react-app"
]
}
}

webpack.config,js.

'use strict';

const fs = require('fs');
const path = require('path');
const webpack = require('webpack');
const resolve = require('resolve');
const PnpWebpackPlugin = require('pnp-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const InlineChunkHtmlPlugin = require('react-dev-utils/InlineChunkHtmlPlugin');
const TerserPlugin = require('terser-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const safePostCssParser = require('postcss-safe-parser');
const ManifestPlugin = require('webpack-manifest-plugin');
const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
const WorkboxWebpackPlugin = require('workbox-webpack-plugin');
const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
const getCSSModuleLocalIdent = require('react-dev-utils/getCSSModuleLocalIdent');
const paths = require('./paths');
const modules = require('./modules');
const getClientEnvironment = require('./env');
const ModuleNotFoundPlugin = require('react-dev-utils/ModuleNotFoundPlugin');
const ForkTsCheckerWebpackPlugin = require('react-dev-utils/ForkTsCheckerWebpackPlugin');
const typescriptFormatter = require('react-dev-utils/typescriptFormatter');

const postcssNormalize = require('postcss-normalize');

const appPackageJson = require(paths.appPackageJson);

// Source maps are resource heavy and can cause out of memory issue for large source files.
const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';
// Some apps do not need the benefits of saving a web request, so not inlining the chunk
// makes for a smoother build process.
const shouldInlineRuntimeChunk = process.env.INLINE_RUNTIME_CHUNK !== 'false';

const isExtendingEslintConfig = process.env.EXTEND_ESLINT === 'true';

const imageInlineSizeLimit = parseInt(
process.env.IMAGE_INLINE_SIZE_LIMIT || '10000'
);

// Check if TypeScript is setup
const useTypeScript = fs.existsSync(paths.appTsConfig);

// style files regexes
const cssRegex = /.css$/;
const cssModuleRegex = /.module.css$/;
const sassRegex = /.(scss|sass)$/;
const sassModuleRegex = /.module.(scss|sass)$/;

// This is the production and development configuration.
// It is focused on developer experience, fast rebuilds, and a minimal bundle.
module.exports = function(webpackEnv) {
const isEnvDevelopment = webpackEnv === 'development';
const isEnvProduction = webpackEnv === 'production';

// Variable used for enabling profiling in Production
// passed into alias object. Uses a flag if passed into the build command
const isEnvProductionProfile =
isEnvProduction && process.argv.includes('--profile');

// We will provide paths.publicUrlOrPath to our app
// as %PUBLIC_URL% in index.html and process.env.PUBLIC_URL in JavaScript.
// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
// Get environment variables to inject into our app.
const env = getClientEnvironment(paths.publicUrlOrPath.slice(0, -1));

// common function to get style loaders
const getStyleLoaders = (cssOptions, preProcessor) => {
const loaders = [
isEnvDevelopment && require.resolve('style-loader'),
isEnvProduction && {
loader: MiniCssExtractPlugin.loader,
// css is located in static/css, use '../../' to locate index.html folder
// in production paths.publicUrlOrPath can be a relative path
options: paths.publicUrlOrPath.startsWith('.')
? { publicPath: '../../' }
: {},
},
{
loader: require.resolve('css-loader'),
options: cssOptions,
},
{
// Options for PostCSS as we reference these options twice
// Adds vendor prefixing based on your specified browser support in
// package.json
loader: require.resolve('postcss-loader'),
options: {
// Necessary for external CSS imports to work
// https://github.com/facebook/create-react-app/issues/2677
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
require('postcss-preset-env')({
autoprefixer: {
flexbox: 'no-2009',
},
stage: 3,
}),
// Adds PostCSS Normalize as the reset css with default options,
// so that it honors browserslist config in package.json
// which in turn let's users customize the target behavior as per their needs.
postcssNormalize(),
],
sourceMap: isEnvProduction && shouldUseSourceMap,
},
},
].filter(Boolean);
if (preProcessor) {
loaders.push(
{
loader: require.resolve('resolve-url-loader'),
options: {
sourceMap: isEnvProduction && shouldUseSourceMap,
},
},
{
loader: require.resolve(preProcessor),
options: {
sourceMap: true,
},
}
);
}
return loaders;
};

return {
mode: isEnvProduction ? 'production' : isEnvDevelopment && 'development',
// Stop compilation early in production
bail: isEnvProduction,
devtool: isEnvProduction
? shouldUseSourceMap
? 'source-map'
: false
: isEnvDevelopment && 'cheap-module-source-map',
// These are the "entry points" to our application.
// This means they will be the "root" imports that are included in JS bundle.
entry: [
// Include an alternative client for WebpackDevServer. A client's job is to
// connect to WebpackDevServer by a socket and get notified about changes.
// When you save a file, the client will either apply hot updates (in case
// of CSS changes), or refresh the page (in case of JS changes). When you
// make a syntax error, this client will display a syntax error overlay.
// Note: instead of the default WebpackDevServer client, we use a custom one
// to bring better experience for Create React App users. You can replace
// the line below with these two lines if you prefer the stock client:
// require.resolve('webpack-dev-server/client') + '?/',
// require.resolve('webpack/hot/dev-server'),
isEnvDevelopment &&
require.resolve('react-dev-utils/webpackHotDevClient'),
// Finally, this is your app's code:
paths.appIndexJs,
// We include the app code last so that if there is a runtime error during
// initialization, it doesn't blow up the WebpackDevServer client, and
// changing JS code would still trigger a refresh.
].filter(Boolean),
output: {
// The build folder.
path: isEnvProduction ? paths.appBuild : undefined,
// Add /* filename */ comments to generated require()s in the output.
pathinfo: isEnvDevelopment,
// There will be one main bundle, and one file per asynchronous chunk.
// In development, it does not produce real files.
filename: isEnvProduction
? 'static/js/[name].[contenthash:8].js'
: isEnvDevelopment && 'static/js/bundle.js',
// TODO: remove this when upgrading to webpack 5
futureEmitAssets: true,
// There are also additional JS chunk files if you use code splitting.
chunkFilename: isEnvProduction
? 'static/js/[name].[contenthash:8].chunk.js'
: isEnvDevelopment && 'static/js/[name].chunk.js',
// webpack uses publicPath to determine where the app is being served from.
// It requires a trailing slash, or the file assets will get an incorrect path.
// We inferred the "public path" (such as / or /my-project) from homepage.
publicPath: paths.publicUrlOrPath,
// Point sourcemap entries to original disk location (format as URL on Windows)
devtoolModuleFilenameTemplate: isEnvProduction
? info =>
path
.relative(paths.appSrc, info.absoluteResourcePath)
.replace(/\/g, '/')
: isEnvDevelopment &&
(info => path.resolve(info.absoluteResourcePath).replace(/\/g, '/')),
// Prevents conflicts when multiple webpack runtimes (from different apps)
// are used on the same page.
jsonpFunction: webpackJsonp${appPackageJson.name},
// this defaults to 'window', but by setting it to 'this' then
// module chunks which are built will work in web workers as well.
globalObject: 'this',
},
optimization: {
minimize: isEnvProduction,
minimizer: [
// This is only used in production mode
new TerserPlugin({
terserOptions: {
parse: {
// We want terser to parse ecma 8 code. However, we don't want it
// to apply any minification steps that turns valid ecma 5 code
// into invalid ecma 5 code. This is why the 'compress' and 'output'
// sections only apply transformations that are ecma 5 safe
// https://github.com/facebook/create-react-app/pull/4234
ecma: 8,
},
compress: {
ecma: 5,
warnings: false,
// Disabled because of an issue with Uglify breaking seemingly valid code:
// https://github.com/facebook/create-react-app/issues/2376
// Pending further investigation:
// https://github.com/mishoo/UglifyJS/issues/2011
comparisons: false,
// Disabled because of an issue with Terser breaking valid code:
// https://github.com/facebook/create-react-app/issues/5250
// Pending further investigation:
// https://github.com/terser/terser/issues/120
inline: 2,
},
mangle: {
safari10: true,
},
// Added for profiling in devtools
keep_classnames: isEnvProductionProfile,
keep_fnames: isEnvProductionProfile,
output: {
ecma: 5,
comments: false,
// Turned on because emoji and regex is not minified properly using default
// https://github.com/facebook/create-react-app/issues/2488
ascii_only: true,
},
},
sourceMap: shouldUseSourceMap,
}),
// This is only used in production mode
new OptimizeCSSAssetsPlugin({
cssProcessorOptions: {
parser: safePostCssParser,
map: shouldUseSourceMap
? {
// inline: false forces the sourcemap to be output into a
// separate file
inline: false,
// annotation: true appends the sourceMappingURL to the end of
// the css file, helping the browser find the sourcemap
annotation: true,
}
: false,
},
cssProcessorPluginOptions: {
preset: ['default', { minifyFontValues: { removeQuotes: false } }],
},
}),
],
// Automatically split vendor and commons
// https://twitter.com/wSokra/status/969633336732905474
// https://medium.com/webpack/webpack-4-code-splitting-chunk-graph-and-the-splitchunks-optimization-be739a861366
splitChunks: {
chunks: 'all',
name: false,
},
// Keep the runtime chunk separated to enable long term caching
// https://twitter.com/wSokra/status/969679223278505985
// facebook/create-react-app#5358
runtimeChunk: {
name: entrypoint => runtime-${entrypoint.name},
},
},
resolve: {
// This allows you to set a fallback for where webpack should look for modules.
// We placed these paths second because we want node_modules to "win"
// if there are any conflicts. This matches Node resolution mechanism.
// facebook/create-react-app#253
modules: ['node_modules', paths.appNodeModules].concat(
modules.additionalModulePaths || []
),
// These are the reasonable defaults supported by the Node ecosystem.
// We also include JSX as a common component filename extension to support
// some tools, although we do not recommend using it, see:
// facebook/create-react-app#290
// web extension prefixes have been added for better support
// for React Native Web.
extensions: paths.moduleFileExtensions
.map(ext => .${ext})
.filter(ext => useTypeScript || !ext.includes('ts')),
alias: {
// Support React Native Web
// https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
'react-native': 'react-native-web',
// Allows for better profiling with ReactDevTools
...(isEnvProductionProfile && {
'react-dom$': 'react-dom/profiling',
'scheduler/tracing': 'scheduler/tracing-profiling',
}),
...(modules.webpackAliases || {}),
},
plugins: [
// Adds support for installing with Plug'n'Play, leading to faster installs and adding
// guards against forgotten dependencies and such.
PnpWebpackPlugin,
// Prevents users from importing files from outside of src/ (or node_modules/).
// This often causes confusion because we only process files within src/ with babel.
// To fix this, we prevent you from importing files out of src/ -- if you'd like to,
// please link the files into your node_modules/ and let module-resolution kick in.
// Make sure your source files are compiled, as they will not be processed in any way.
new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
],
},
resolveLoader: {
plugins: [
// Also related to Plug'n'Play, but this time it tells webpack to load its loaders
// from the current package.
PnpWebpackPlugin.moduleLoader(module),
],
},
module: {
strictExportPresence: true,
rules: [
// Disable require.ensure as it's not a standard language feature.
{ parser: { requireEnsure: false } },

    // First, run the linter.
    // It's important to do this before Babel processes the JS.
    {
      test: /\.(js|mjs|jsx|ts|tsx)$/,
      enforce: 'pre',
      use: [
        {
          options: {
            cache: true,
            formatter: require.resolve('react-dev-utils/eslintFormatter'),
            eslintPath: require.resolve('eslint'),
            resolvePluginsRelativeTo: __dirname,
            
          },
          loader: require.resolve('eslint-loader'),
        },
      ],
      include: paths.appSrc,
    },
    {
      // "oneOf" will traverse all following loaders until one will
      // match the requirements. When no loader matches it will fall
      // back to the "file" loader at the end of the loader list.
      oneOf: [
        // "url" loader works like "file" loader except that it embeds assets
        // smaller than specified limit in bytes as data URLs to avoid requests.
        // A missing `test` is equivalent to a match.
        {
          test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
          loader: require.resolve('url-loader'),
          options: {
            limit: imageInlineSizeLimit,
            name: 'static/media/[name].[hash:8].[ext]',
          },
        },
        // Process application JS with Babel.
        // The preset includes JSX, Flow, TypeScript, and some ESnext features.
        {
          test: /\.(js|mjs|jsx|ts|tsx)$/,
          **include: [paths.appSrc, /node_modules\/react-native-web-refresh-control/],**
          loader: require.resolve('babel-loader'),
          options: {
            customize: require.resolve(
              'babel-preset-react-app/webpack-overrides'
            ),
            
            plugins: [
              [
                require.resolve('babel-plugin-named-asset-import'),
                {
                  loaderMap: {
                    svg: {
                      ReactComponent:
                        '@svgr/webpack?-svgo,+titleProp,+ref![path]',
                    },
                  },
                },
              ],
            ],
            // This is a feature of `babel-loader` for webpack (not Babel itself).
            // It enables caching results in ./node_modules/.cache/babel-loader/
            // directory for faster rebuilds.
            cacheDirectory: true,
            // See #6846 for context on why cacheCompression is disabled
            cacheCompression: false,
            compact: isEnvProduction,
          },
        },
        // Process any JS outside of the app with Babel.
        // Unlike the application JS, we only compile the standard ES features.
        {
          test: /\.(js|mjs)$/,
          exclude: /@babel(?:\/|\\{1,2})runtime/,
          loader: require.resolve('babel-loader'),
          options: {
            babelrc: false,
            configFile: false,
            compact: false,
            presets: [
              [
                require.resolve('babel-preset-react-app/dependencies'),
                { helpers: true },
              ],
            ],
            cacheDirectory: true,
            // See #6846 for context on why cacheCompression is disabled
            cacheCompression: false,
            
            // Babel sourcemaps are needed for debugging into node_modules
            // code.  Without the options below, debuggers like VSCode
            // show incorrect code and set breakpoints on the wrong lines.
            sourceMaps: shouldUseSourceMap,
            inputSourceMap: shouldUseSourceMap,
          },
        },
        // "postcss" loader applies autoprefixer to our CSS.
        // "css" loader resolves paths in CSS and adds assets as dependencies.
        // "style" loader turns CSS into JS modules that inject <style> tags.
        // In production, we use MiniCSSExtractPlugin to extract that CSS
        // to a file, but in development "style" loader enables hot editing
        // of CSS.
        // By default we support CSS Modules with the extension .module.css
        {
          test: cssRegex,
          exclude: cssModuleRegex,
          use: getStyleLoaders({
            importLoaders: 1,
            sourceMap: isEnvProduction && shouldUseSourceMap,
          }),
          // Don't consider CSS imports dead code even if the
          // containing package claims to have no side effects.
          // Remove this when webpack adds a warning or an error for this.
          // See https://github.com/webpack/webpack/issues/6571
          sideEffects: true,
        },
        // Adds support for CSS Modules (https://github.com/css-modules/css-modules)
        // using the extension .module.css
        {
          test: cssModuleRegex,
          use: getStyleLoaders({
            importLoaders: 1,
            sourceMap: isEnvProduction && shouldUseSourceMap,
            modules: {
              getLocalIdent: getCSSModuleLocalIdent,
            },
          }),
        },
        // Opt-in support for SASS (using .scss or .sass extensions).
        // By default we support SASS Modules with the
        // extensions .module.scss or .module.sass
        {
          test: sassRegex,
          exclude: sassModuleRegex,
          use: getStyleLoaders(
            {
              importLoaders: 3,
              sourceMap: isEnvProduction && shouldUseSourceMap,
            },
            'sass-loader'
          ),
          // Don't consider CSS imports dead code even if the
          // containing package claims to have no side effects.
          // Remove this when webpack adds a warning or an error for this.
          // See https://github.com/webpack/webpack/issues/6571
          sideEffects: true,
        },
        // Adds support for CSS Modules, but using SASS
        // using the extension .module.scss or .module.sass
        {
          test: sassModuleRegex,
          use: getStyleLoaders(
            {
              importLoaders: 3,
              sourceMap: isEnvProduction && shouldUseSourceMap,
              modules: {
                getLocalIdent: getCSSModuleLocalIdent,
              },
            },
            'sass-loader'
          ),
        },
        // "file" loader makes sure those assets get served by WebpackDevServer.
        // When you `import` an asset, you get its (virtual) filename.
        // In production, they would get copied to the `build` folder.
        // This loader doesn't use a "test" so it will catch all modules
        // that fall through the other loaders.
        {
          loader: require.resolve('file-loader'),
          // Exclude `js` files to keep "css" loader working as it injects
          // its runtime that would otherwise be processed through "file" loader.
          // Also exclude `html` and `json` extensions so they get processed
          // by webpacks internal loaders.
          exclude: [/\.(js|mjs|jsx|ts|tsx)$/, /\.html$/, /\.json$/],
          options: {
            name: 'static/media/[name].[hash:8].[ext]',
          },
        },
        // ** STOP ** Are you adding a new loader?
        // Make sure to add the new loader(s) before the "file" loader.
      ],
    },
  ],
},
plugins: [
  // Generates an `index.html` file with the <script> injected.
  new HtmlWebpackPlugin(
    Object.assign(
      {},
      {
        inject: true,
        template: paths.appHtml,
      },
      isEnvProduction
        ? {
            minify: {
              removeComments: true,
              collapseWhitespace: true,
              removeRedundantAttributes: true,
              useShortDoctype: true,
              removeEmptyAttributes: true,
              removeStyleLinkTypeAttributes: true,
              keepClosingSlash: true,
              minifyJS: true,
              minifyCSS: true,
              minifyURLs: true,
            },
          }
        : undefined
    )
  ),
  // Inlines the webpack runtime script. This script is too small to warrant
  // a network request.
  // https://github.com/facebook/create-react-app/issues/5358
  isEnvProduction &&
    shouldInlineRuntimeChunk &&
    new InlineChunkHtmlPlugin(HtmlWebpackPlugin, [/runtime-.+[.]js/]),
  // Makes some environment variables available in index.html.
  // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
  // <link rel="icon" href="%PUBLIC_URL%/favicon.ico">
  // It will be an empty string unless you specify "homepage"
  // in `package.json`, in which case it will be the pathname of that URL.
  new InterpolateHtmlPlugin(HtmlWebpackPlugin, env.raw),
  // This gives some necessary context to module not found errors, such as
  // the requesting resource.
  new ModuleNotFoundPlugin(paths.appPath),
  // Makes some environment variables available to the JS code, for example:
  // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
  // It is absolutely essential that NODE_ENV is set to production
  // during a production build.
  // Otherwise React will be compiled in the very slow development mode.
  new webpack.DefinePlugin(env.stringified),
  // This is necessary to emit hot updates (currently CSS only):
  isEnvDevelopment && new webpack.HotModuleReplacementPlugin(),
  // Watcher doesn't work well if you mistype casing in a path so we use
  // a plugin that prints an error when you attempt to do this.
  // See https://github.com/facebook/create-react-app/issues/240
  isEnvDevelopment && new CaseSensitivePathsPlugin(),
  // If you require a missing module and then `npm install` it, you still have
  // to restart the development server for webpack to discover it. This plugin
  // makes the discovery automatic so you don't have to restart.
  // See https://github.com/facebook/create-react-app/issues/186
  isEnvDevelopment &&
    new WatchMissingNodeModulesPlugin(paths.appNodeModules),
  isEnvProduction &&
    new MiniCssExtractPlugin({
      // Options similar to the same options in webpackOptions.output
      // both options are optional
      filename: 'static/css/[name].[contenthash:8].css',
      chunkFilename: 'static/css/[name].[contenthash:8].chunk.css',
    }),
  // Generate an asset manifest file with the following content:
  // - "files" key: Mapping of all asset filenames to their corresponding
  //   output file so that tools can pick it up without having to parse
  //   `index.html`
  // - "entrypoints" key: Array of files which are included in `index.html`,
  //   can be used to reconstruct the HTML if necessary
  new ManifestPlugin({
    fileName: 'asset-manifest.json',
    publicPath: paths.publicUrlOrPath,
    generate: (seed, files, entrypoints) => {
      const manifestFiles = files.reduce((manifest, file) => {
        manifest[file.name] = file.path;
        return manifest;
      }, seed);
      const entrypointFiles = entrypoints.main.filter(
        fileName => !fileName.endsWith('.map')
      );

      return {
        files: manifestFiles,
        entrypoints: entrypointFiles,
      };
    },
  }),
  // Moment.js is an extremely popular library that bundles large locale files
  // by default due to how webpack interprets its code. This is a practical
  // solution that requires the user to opt into importing specific locales.
  // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
  // You can remove this if you don't use Moment.js:
  new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
  // Generate a service worker script that will precache, and keep up to date,
  // the HTML & assets that are part of the webpack build.
  isEnvProduction &&
    new WorkboxWebpackPlugin.GenerateSW({
      clientsClaim: true,
      exclude: [/\.map$/, /asset-manifest\.json$/],
      importWorkboxFrom: 'cdn',
      navigateFallback: paths.publicUrlOrPath + 'index.html',
      navigateFallbackBlacklist: [
        // Exclude URLs starting with /_, as they're likely an API call
        new RegExp('^/_'),
        // Exclude any URLs whose last part seems to be a file extension
        // as they're likely a resource and not a SPA route.
        // URLs containing a "?" character won't be blacklisted as they're likely
        // a route with query params (e.g. auth callbacks).
        new RegExp('/[^/?]+\\.[^/]+$'),
      ],
    }),
  // TypeScript type checking
  useTypeScript &&
    new ForkTsCheckerWebpackPlugin({
      typescript: resolve.sync('typescript', {
        basedir: paths.appNodeModules,
      }),
      async: isEnvDevelopment,
      useTypescriptIncrementalApi: true,
      checkSyntacticErrors: true,
      resolveModuleNameModule: process.versions.pnp
        ? `${__dirname}/pnpTs.js`
        : undefined,
      resolveTypeReferenceDirectiveModule: process.versions.pnp
        ? `${__dirname}/pnpTs.js`
        : undefined,
      tsconfig: paths.appTsConfig,
      reportFiles: [
        '**',
        '!**/__tests__/**',
        '!**/?(*.)(spec|test).*',
        '!**/src/setupProxy.*',
        '!**/src/setupTests.*',
      ],
      silent: true,
      // The formatter is invoked directly in WebpackDevServerUtils during development
      formatter: isEnvProduction ? typescriptFormatter : undefined,
    }),
].filter(Boolean),
// Some libraries import Node modules but don't use them in the browser.
// Tell webpack to provide empty mocks for them so importing them works.
node: {
  module: 'empty',
  dgram: 'empty',
  dns: 'mock',
  fs: 'empty',
  http2: 'empty',
  net: 'empty',
  tls: 'empty',
  child_process: 'empty',
},
// Turn off performance processing because we utilize
// our own hints via the FileSizeReporter
performance: false,

};
};

After eject but got same error.

Failed to compile
./node_modules/react-native-web-refresh-control/src/index.js
SyntaxError: D:\Worksapce\ReactNative\CRNWA\TestCrnwa\node_modules\react-native-web-refresh-control\src\index.js: Unexpected token (21:6)

19 | //eslint-disable-next-line react/display-name
20 | renderScrollComponent: props => (

21 | <ScrollView
| ^
22 | {...props}
23 | //eslint-disable-next-line react/prop-types
24 | refreshControl={}

[NiciusB]

Mhhh I really don't know, then.
If you upload the repo to github I might be able to check it out

[Dipak26]

Problem resolved thanks with this

https://github.com/VISI-ONE/create-react-native-web-example/issues/1

now i understand eject not required no changes only modify to webpack.config.js

[NiciusB]

Got it. Thanks! I'll test it and update the README if eject is indeed not needed