theia: bug: failure to build using 'next' packages

Bug Description:

The application fails to build when using next packages (as also viewed from theia-apps). When attempting to ‘compose an application’, the build results in the following failure:

$ yarn run clean && yarn build && yarn run download:plugins
yarn run v1.22.4
$ theia clean
internal/modules/cjs/loader.js:638
    throw err;
    ^

Error: Cannot find module '../lib/theia'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at Object.<anonymous> (/home/evinfug/Desktop/test-app/node_modules/@theia/cli/bin/theia:2:1)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

Steps to Reproduce:

If one wants to reproduce, you can simply follow the steps provided in composing applications.

1. create a directory, and a package.json inside of it
2. update the package.json to include the following:

{
  "private": true,
  "dependencies": {
      "@theia/callhierarchy": "next",
      "@theia/file-search": "next",
      "@theia/git": "next",
      "@theia/json": "next",
      "@theia/markers": "next",
      "@theia/messages": "next",
      "@theia/mini-browser": "next",
      "@theia/navigator": "next",
      "@theia/outline-view": "next",
      "@theia/plugin-ext-vscode": "next",
      "@theia/preferences": "next",
      "@theia/preview": "next",
      "@theia/search-in-workspace": "next",
      "@theia/terminal": "next"
  },
  "devDependencies": {
      "@theia/cli": "next"
  },
  "scripts": {
      "prepare": "yarn run clean && yarn build && yarn run download:plugins",
      "clean": "theia clean",
      "build": "theia build --mode development",
      "start": "theia start --plugins=local-dir:plugins",
      "download:plugins": "theia download:plugins"
  },
  "theiaPluginsDir": "plugins",
  "theiaPlugins": {
      "vscode-builtin-css": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/css-1.39.1-prel.vsix",
      "vscode-builtin-html": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/html-1.39.1-prel.vsix",
      "vscode-builtin-javascript": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/javascript-1.39.1-prel.vsix",
      "vscode-builtin-json": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/json-1.39.1-prel.vsix",
      "vscode-builtin-markdown": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/markdown-1.39.1-prel.vsix",
      "vscode-builtin-npm": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/npm-1.39.1-prel.vsix",
      "vscode-builtin-scss": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/scss-1.39.1-prel.vsix",
      "vscode-builtin-typescript": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/typescript-1.39.1-prel.vsix",
      "vscode-builtin-typescript-language-features": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/typescript-language-features-1.39.1-prel.vsix"
  }
}

1. perform yarn and notice the error

Additional Information

yarn: v1.22.4