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.<anonymous> (/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..