Cannot build production verions of library

[dagi12]

• I'm submitting a ... [x] bug report [ ] feature request [ ] question about the decisions made in the repository

• What is the current behavior?

  1. Clone the repository
  2. Run npm install
  3. Run npm run build
  4. You get following error

     
     > node --max_old_space_size=4096 node_modules/webpack/bin/webpack.js "--config" "config/webpack.dev.js" "--progress" "--profile"

/home/eryk/programowanie/web/ngx-modialog/node_modules/ts-node/src/index.ts:307 throw new TSError(formatDiagnostics(diagnosticList, cwd, ts, lineOffset)) ^ TSError: ⨯ Unable to compile TypeScript Cannot find type definition file for 'source-map'. (2688) at getOutput (/home/eryk/programowanie/web/ngx-modialog/node_modules/ts-node/src/index.ts:307:15) at /home/eryk/programowanie/web/ngx-modialog/node_modules/ts-node/src/index.ts:336:16 at Object.compile (/home/eryk/programowanie/web/ngx-modialog/node_modules/ts-node/src/index.ts:498:11) at Module.m._compile (/home/eryk/programowanie/web/ngx-modialog/node_modules/ts-node/src/index.ts:392:43) at Module._extensions..js (module.js:663:10) at Object.require.extensions.(anonymous function) [as .ts] (/home/eryk/programowanie/web/ngx-modialog/node_modules/ts-node/src/index.ts:395:12) at Module.load (module.js:565:32) at tryModuleLoad (module.js:505:12) at Function.Module._load (module.js:497:3) at Module.require (module.js:596:17) at require (internal/module.js:11:18) at Object. (/home/eryk/programowanie/web/ngx-modialog/config/webpack.common.js:32:14) at Module._compile (module.js:652:30) at Object.Module._extensions..js (module.js:663:10) at Module.load (module.js:565:32) at tryModuleLoad (module.js:505:12)

* **What is the expected behavior?**
Should built production version.

* **What is the motivation / use case for changing the behavior?**
Building a production version with potential pull requests..