boilerplates-monorepo example fails to start

[ktor]

I have followed instructions from https://react-union.org/boilerplates-monorepo.

yarn v1.22.18
nodejs v16.17.1

└🐚 node16➤ yarn && yarn start
yarn install v1.22.18
info No lockfile found.
[1/5] Validating package.json...
[2/5] Resolving packages...
warning [email protected]: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates.
warning react-union-scripts > webpack-dev-middleware > webpack-log > [email protected]: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
warning react-union-scripts > webpack > watchpack > watchpack-chokidar2 > [email protected]: Chokidar 2 does not receive security updates since 2019. Upgrade to chokidar 3 with 15x fewer dependencies
warning react-union-scripts > webpack > watchpack > watchpack-chokidar2 > chokidar > [email protected]: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
warning react-union-scripts > webpack > micromatch > snapdragon > [email protected]: See https://github.com/lydell/source-map-resolve#deprecated
warning react-union-scripts > resolve-url-loader > rework > css > [email protected]: See https://github.com/lydell/source-map-resolve#deprecated
warning react-union-scripts > babel-jest > @jest/transform > jest-haste-map > [email protected]: some dependency vulnerabilities fixed, support for node < 10 dropped, and newer ECMAScript syntax/features added
warning react-union-scripts > resolve-url-loader > rework > css > [email protected]: Please see https://github.com/lydell/urix#deprecated
warning react-union-scripts > webpack > micromatch > snapdragon > source-map-resolve > [email protected]: Please see https://github.com/lydell/urix#deprecated
warning react-union-scripts > webpack > node-libs-browser > url > [email protected]: The querystring API is considered Legacy. new code should use the URLSearchParams API instead.
warning react-union-scripts > webpack > micromatch > snapdragon > source-map-resolve > [email protected]: See https://github.com/lydell/source-map-url#deprecated
warning react-union-scripts > webpack > micromatch > snapdragon > source-map-resolve > [email protected]: https://github.com/lydell/resolve-url#deprecated
warning react-union-scripts > jest > jest-cli > jest-config > jest-environment-jsdom > jsdom > [email protected]: Use your platform's native performance.now() and performance.timeOrigin.
warning workspace-aggregator-a2241698-eb4e-4043-83e5-04e73463471e > [email protected]: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates.
warning workspace-aggregator-a2241698-eb4e-4043-83e5-04e73463471e > @union-monorepo/app-sample > @babel/[email protected]: 🚨 This package has been deprecated in favor of separate inclusion of a polyfill and regenerator-runtime (when needed). See the @babel/polyfill docs (https://babeljs.io/docs/en/babel-polyfill) for more information.
warning workspace-aggregator-a2241698-eb4e-4043-83e5-04e73463471e > @union-monorepo/app-sample > @babel/polyfill > [email protected]: core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Some versions have web compatibility issues. Please, upgrade your dependencies to the actual version of core-js.
[3/5] Fetching packages...
[4/5] Linking dependencies...
warning " > [email protected]" has unmet peer dependency "core-js@^3.0.0".
warning "babel-preset-react-union > [email protected]" has unmet peer dependency "webpack@^4.4.0".
warning " > [email protected]" has unmet peer dependency "react@^16.0.0-0".
warning " > [email protected]" has unmet peer dependency "react-dom@^16.0.0-0".
warning "enzyme-adapter-react-16 > [email protected]" has unmet peer dependency "react@^16.14.0".
warning "enzyme-adapter-react-16 > [email protected]" has unmet peer dependency "[email protected] || 0.14.x || ^15.0.0-0 || ^16.0.0-0".
warning "enzyme-adapter-react-16 > enzyme-adapter-utils > [email protected]" has unmet peer dependency "react@^0.14 || ^15.0.0 || ^16.0.0-alpha".
warning " > [email protected]" has incorrect peer dependency "eslint@^5.12.1".
warning "react-union-scripts > [email protected]" has unmet peer dependency "react@^16.8.3".
warning "react-union-scripts > [email protected]" has unmet peer dependency "react-dom@^16.8.3".
warning "react-union-scripts > [email protected]" has unmet peer dependency "react-union@^0.17.0".
warning "react-union-scripts > [email protected]" has unmet peer dependency "react@^15.0.0 || ^16.0.0 || ^17.0.0 ".
warning "react-union-scripts > [email protected]" has unmet peer dependency "react-dom@^15.0.0 || ^16.0.0 || ^17.0.0 ".
warning "react-union-scripts > [email protected]" has unmet peer dependency "react@^16.3.0 || ^17.0.0".
warning "react-union-scripts > react-union-rendering-service > [email protected]" has unmet peer dependency "react@*".
[5/5] Building fresh packages...
success Saved lockfile.
Done in 39.06s.
yarn run v1.22.18
$ react-union-scripts start --app app-sample
[13:08:23] Starting 'start'...
Optimizing for development mode.
[13:08:25] Starting 'startDevServer'...
[13:08:25] Finished 'startDevServer' after 204 ms
[13:08:25] Finished 'start' after 1941 ms
[Browsersync] Access URLs:
 -------------------------------
    Local: http://localhost:3301
 External: http://10.0.4.74:3301
 -------------------------------
[Browsersync] Serving files from: /home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/packages/app-sample/public

  `@babel/polyfill` is deprecated. Please, use required parts of `core-js`
  and `regenerator-runtime/runtime` separately
ℹ ｢wdm｣: wait until bundle finished: /
webpack built client 7c10de9484c835fd41a3 in 5119ms
✖ ｢wdm｣: Time: 5119ms
Built at: 04/11/2022 13:08:30
                      Asset       Size   Chunks                    Chunk Names
         assetManifest.json  211 bytes           [emitted]
                 index.html  892 bytes           [emitted]
  static/css/main.chunk.css   92 bytes     main  [emitted]         main
    static/js/main.chunk.js   18.3 KiB     main  [emitted]         main
static/js/runtime.bundle.js   33.4 KiB  runtime  [emitted]         runtime
  static/js/vendor.chunk.js   5.93 MiB   vendor  [emitted]  [big]  vendor
Entrypoint main [big] = static/js/runtime.bundle.js static/js/vendor.chunk.js static/css/main.chunk.css static/js/main.chunk.js
[0] multi ../packages/app-sample/src/index ../node_modules/webpack-hot-middleware/client.js 40 bytes {main} [built]
[../node_modules/@babel/polyfill/lib/index.js] 686 bytes {vendor} [built]
[../node_modules/@babel/polyfill/lib/noConflict.js] 567 bytes {vendor} [built]
[../node_modules/@babel/runtime/helpers/defineProperty.js] 365 bytes {vendor} [built]
[../node_modules/@babel/runtime/helpers/extends.js] 601 bytes {vendor} [built]
[../node_modules/@babel/runtime/helpers/inheritsLoose.js] 358 bytes {vendor} [built]
[../node_modules/react-union/es/react-union.js] 17.3 KiB {vendor} [built]
[../node_modules/react/index.js] 190 bytes {vendor} [built]
[../node_modules/strip-ansi/index.js] 154 bytes {vendor} [built]
[../node_modules/webpack-hot-middleware/client-overlay.js] 2.14 KiB {vendor} [built]
[../node_modules/webpack-hot-middleware/client.js] 7.67 KiB {vendor} [built]
[../node_modules/webpack-hot-middleware/process-update.js] 4.36 KiB {vendor} [built]
[../node_modules/webpack/buildin/module.js] 497 bytes {vendor} [built]
[../packages/app-sample/src/components/Root/index.js] 33 bytes {main} [built]
[../packages/app-sample/src/index.js] 191 bytes {main} [built]
    + 857 hidden modules

ERROR in ../packages/app-sample/src/routes.js
Module build failed (from ../node_modules/babel-loader/lib/index.js):
TypeError: /home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/packages/app-sample/src/routes.js: Property value expected type of string but got undefined
    at Object.validate (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/types/lib/definitions/utils.js:159:13)
    at validateField (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/types/lib/validators/validate.js:24:9)
    at validate (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/types/lib/validators/validate.js:17:3)
    at validateNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/types/lib/builders/validateNode.js:16:27)
    at Object.stringLiteral (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/types/lib/builders/generated/index.js:457:36)
    at idOption (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/babel-plugin-universal-import/index.js:134:49)
    at PluginPass.Import (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/babel-plugin-universal-import/index.js:241:13)
    at newFn (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/visitors.js:159:21)
    at NodePath._call (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:46:20)
    at NodePath.call (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:36:17)
    at NodePath.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:84:31)
    at TraversalContext.visitQueue (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:96:16)
    at TraversalContext.visitSingle (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:72:19)
    at TraversalContext.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:121:19)
    at traverseNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/traverse-node.js:18:17)
    at NodePath.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:90:52)
    at TraversalContext.visitQueue (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:96:16)
    at TraversalContext.visitMultiple (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:67:17)
    at TraversalContext.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:119:19)
    at traverseNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/traverse-node.js:18:17)
    at NodePath.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:90:52)
    at TraversalContext.visitQueue (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:96:16)
    at TraversalContext.visitSingle (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:72:19)
    at TraversalContext.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:121:19)
    at traverseNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/traverse-node.js:18:17)
    at NodePath.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:90:52)
    at TraversalContext.visitQueue (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:96:16)
    at TraversalContext.visitMultiple (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:67:17)
    at TraversalContext.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:119:19)
    at traverseNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/traverse-node.js:18:17)
    at NodePath.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:90:52)
    at TraversalContext.visitQueue (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:96:16)
    at TraversalContext.visitMultiple (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:67:17)
    at TraversalContext.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:119:19)
    at traverseNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/traverse-node.js:18:17)
    at NodePath.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:90:52)
    at TraversalContext.visitQueue (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:96:16)
    at TraversalContext.visitSingle (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:72:19)
    at TraversalContext.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:121:19)
    at traverseNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/traverse-node.js:18:17)
    at NodePath.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:90:52)
    at TraversalContext.visitQueue (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:96:16)
    at TraversalContext.visitMultiple (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:67:17)
    at TraversalContext.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:119:19)
    at traverseNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/traverse-node.js:18:17)
    at NodePath.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/path/context.js:90:52)
    at TraversalContext.visitQueue (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:96:16)
    at TraversalContext.visitSingle (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:72:19)
    at TraversalContext.visit (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/context.js:121:19)
    at traverseNode (/home/ktor/development/projects/github/react-union/boilerplates/react-union-boilerplate-monorepo/node_modules/@babel/traverse/lib/traverse-node.js:18:17)
 @ ../packages/app-sample/src/components/Root/Root.js 5:0-34 9:12-18
 @ ../packages/app-sample/src/components/Root/index.js
 @ ../packages/app-sample/src/index.js
 @ multi ../packages/app-sample/src/index ../node_modules/webpack-hot-middleware/client.js
Child HtmlWebpackCompiler:
     1 asset
    Entrypoint HtmlWebpackPlugin_0 = __child-HtmlWebpackPlugin_0
    [../node_modules/html-webpack-plugin/lib/loader.js!../packages/app-sample/public/index.ejs] 1.05 KiB {HtmlWebpackPlugin_0} [built]
Child extract-css-chunks-webpack-plugin ../node_modules/css-loader/dist/cjs.js??ref--5-1!../packages/app-sample/src/components/Root/Root.css:
    Entrypoint extract-css-chunks-webpack-plugin = *
    [../node_modules/css-loader/dist/cjs.js?!../packages/app-sample/src/components/Root/Root.css] ../node_modules/css-loader/dist/cjs.js??ref--5-1!../packages/app-sample/src/components/Root/Root.css 344 bytes {extract-css-chunks-webpack-plugin} [built]
    [../node_modules/css-loader/dist/runtime/api.js] 2.46 KiB {extract-css-chunks-webpack-plugin} [built]
ℹ ｢wdm｣: Failed to compile.