Edit file File name : webpack.config.js Content :const path = require( 'path' ); const jetpackWebpackConfig = require( '@automattic/jetpack-webpack-config/webpack' ); const CopyWebpackPlugin = require( 'copy-webpack-plugin' ); module.exports = [ { entry: { // Video block 'block-editor/blocks/video/index': './src/client/block-editor/blocks/video/index.ts', 'block-editor/blocks/video/view': './src/client/block-editor/blocks/video/view.ts', 'lib/token-bridge': './src/client/lib/token-bridge/index.ts', 'lib/player-bridge': './src/client/lib/player-bridge/index.ts', 'lib/videopress-token-bridge': './src/client/lib/videopress-token-bridge.js', // VideoPress dashboard page 'admin/index': './src/client/admin/index.js', // Block editor extensions 'block-editor/index': './src/client/block-editor/index.ts', // Divi editor extensions 'divi-editor/index': './src/client/divi-editor/index.js', }, mode: jetpackWebpackConfig.mode, devtool: jetpackWebpackConfig.devtool, output: { ...jetpackWebpackConfig.output, path: path.resolve( './build' ), }, optimization: { ...jetpackWebpackConfig.optimization, }, resolve: { ...jetpackWebpackConfig.resolve, }, node: false, plugins: [ ...jetpackWebpackConfig.StandardPlugins(), new CopyWebpackPlugin( { patterns: [ { context: 'src/client/block-editor/blocks', from: './*/block.json', to: './block-editor/blocks/[path]/[name].json', }, { from: 'src/client/block-editor/extensions/index.json', to: './block-editor/extensions/index.json', }, ], } ), ], module: { strictExportPresence: true, rules: [ // Transpile JavaScript jetpackWebpackConfig.TranspileRule( { exclude: /node_modules\//, } ), // Transpile @automattic/jetpack-* in node_modules too. jetpackWebpackConfig.TranspileRule( { includeNodeModules: [ '@automattic/jetpack-' ], } ), // Handle CSS. jetpackWebpackConfig.CssRule( { extensions: [ 'css', 'sass', 'scss' ], extraLoaders: [ { loader: 'postcss-loader', options: { postcssOptions: { config: path.join( __dirname, 'postcss.config.js' ) }, }, }, 'sass-loader', ], } ), // Handle images. jetpackWebpackConfig.FileRule(), ], }, externals: { ...jetpackWebpackConfig.externals, jetpackConfig: JSON.stringify( { consumer_slug: 'jetpack-videopress', } ), }, }, ]; Save