npm run build

> react-kanban@0.1.0 build C:\Users\ivanj\Desktop\here\react-kanban
> webpack --watch --mode development

clean-webpack-plugin: C:\Users\ivanj\Desktop\here\react-kanban\dist has been removed.

Webpack is watching the files…

Hash: e86ad4294830c6f52fe06c7b5ea6193d169c878d
Version: webpack 4.8.3
Child client:
    Hash: e86ad4294830c6f52fe0
    Time: 850ms
    Built at: 2019-02-15 19:56:50
                                    Asset       Size  Chunks             Chunk Names
    favicons/apple-touch-icon-152x152.png   11.5 KiB          [emitted]
                         bundle.e86ad4.js   3.87 KiB    main  [emitted]  main
               favicons/favicon-16x16.png  483 bytes          [emitted]
               favicons/favicon-32x32.png  923 bytes          [emitted]
    favicons/apple-touch-icon-144x144.png   9.47 KiB          [emitted]
                     favicons/favicon.ico    5.3 KiB          [emitted]
              favicons/mstile-144x144.png   9.47 KiB          [emitted]
              favicons/og-kanban-logo.png   56.1 KiB          [emitted]
                      bundle.e86ad4.js.gz   1.35 KiB          [emitted]
                  favicons/favicon.ico.gz   1.85 KiB          [emitted]
                            manifest.json  689 bytes          [emitted]
    Entrypoint main = bundle.e86ad4.js
    [./src/client.jsx] 2.91 KiB {main} [built] [failed] [1 error]

    ERROR in ./src/client.jsx
    Module build failed: Error: [BABEL] C:\Users\ivanj\Desktop\here\react-kanban\src\client.jsx:
    As of v7.0.0-beta.55, we've removed Babel's Stage presets.
    Please consider reading our blog post on this decision at
    https://babeljs.io/blog/2018/07/27/removing-babels-stage-presets
    for more details. TL;DR is that it's more beneficial in the
      long run to explicitly add which proposals to use.

    For a more automatic migration, we have updated babel-upgrade,
    https://github.com/babel/babel-upgrade to do this for you with
    "npx babel-upgrade".

    If you want the same configuration as before:

    {
      "plugins": [
        // Stage 2
        ["@babel/plugin-proposal-decorators", { "legacy": true }],
        "@babel/plugin-proposal-function-sent",
        "@babel/plugin-proposal-export-namespace-from",
        "@babel/plugin-proposal-numeric-separator",
        "@babel/plugin-proposal-throw-expressions",

        // Stage 3
        "@babel/plugin-syntax-dynamic-import",
        "@babel/plugin-syntax-import-meta",
        ["@babel/plugin-proposal-class-properties", { "loose": false }],
        "@babel/plugin-proposal-json-strings"
      ]
    }

    If you're using the same configuration across many separate projects,
    keep in mind that you can also create your own custom presets with
    whichever plugins and presets you're looking to use.

    module.exports = function() {
      return {
        plugins: [
          require("@babel/plugin-syntax-dynamic-import"),
          [require("@babel/plugin-proposal-decorators"), { "legacy": true }],
          [require("@babel/plugin-proposal-class-properties"), { "loose": false }],
        ],
        presets: [
          // ...
        ],
      };
    };
     (While processing: "C:\\Users\\ivanj\\Desktop\\here\\react-kanban\\node_modules\\@babel\\preset-stage-2\\lib\\index.js")
        at _default (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\preset-stage-2\lib\index.js:9:9)
        at loadDescriptor (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:165:14)
        at cachedFunction (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\caching.js:33:19)
        at loadPresetDescriptor (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:235:63)
        at config.presets.reduce (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:77:21)
        at Array.reduce (<anonymous>)
        at recurseDescriptors (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:74:38)
        at loadFullConfig (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:108:6)
        at process.nextTick (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\transform.js:28:33)
        at process._tickCallback (internal/process/next_tick.js:61:11)
Child server:
    Hash: 6c7b5ea6193d169c878d
    Time: 705ms
    Built at: 2019-02-15 19:56:50
        Asset      Size  Chunks             Chunk Names
    server.js  6.14 KiB    main  [emitted]  main
    Entrypoint main = server.js
    [./src/server/server.js] 2.92 KiB {main} [built] [failed] [1 error]

    ERROR in ./src/server/server.js
    Module build failed: Error: [BABEL] C:\Users\ivanj\Desktop\here\react-kanban\src\server\server.js:
    As of v7.0.0-beta.55, we've removed Babel's Stage presets.
    Please consider reading our blog post on this decision at
    https://babeljs.io/blog/2018/07/27/removing-babels-stage-presets
    for more details. TL;DR is that it's more beneficial in the
      long run to explicitly add which proposals to use.

    For a more automatic migration, we have updated babel-upgrade,
    https://github.com/babel/babel-upgrade to do this for you with
    "npx babel-upgrade".

    If you want the same configuration as before:

    {
      "plugins": [
        // Stage 2
        ["@babel/plugin-proposal-decorators", { "legacy": true }],
        "@babel/plugin-proposal-function-sent",
        "@babel/plugin-proposal-export-namespace-from",
        "@babel/plugin-proposal-numeric-separator",
        "@babel/plugin-proposal-throw-expressions",

        // Stage 3
        "@babel/plugin-syntax-dynamic-import",
        "@babel/plugin-syntax-import-meta",
        ["@babel/plugin-proposal-class-properties", { "loose": false }],
        "@babel/plugin-proposal-json-strings"
      ]
    }

    If you're using the same configuration across many separate projects,
    keep in mind that you can also create your own custom presets with
    whichever plugins and presets you're looking to use.

    module.exports = function() {
      return {
        plugins: [
          require("@babel/plugin-syntax-dynamic-import"),
          [require("@babel/plugin-proposal-decorators"), { "legacy": true }],
          [require("@babel/plugin-proposal-class-properties"), { "loose": false }],
        ],
        presets: [
          // ...
        ],
      };
    };
     (While processing: "C:\\Users\\ivanj\\Desktop\\here\\react-kanban\\node_modules\\@babel\\preset-stage-2\\lib\\index.js")
        at _default (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\preset-stage-2\lib\index.js:9:9)
        at loadDescriptor (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:165:14)
        at cachedFunction (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\caching.js:33:19)
        at loadPresetDescriptor (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:235:63)
        at config.presets.reduce (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:77:21)
        at Array.reduce (<anonymous>)
        at recurseDescriptors (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:74:38)
        at loadFullConfig (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\config\full.js:108:6)
        at process.nextTick (C:\Users\ivanj\Desktop\here\react-kanban\node_modules\@babel\core\lib\transform.js:28:33)
        at process._tickCallback (internal/process/next_tick.js:61:11)