Please, provide the following version numbers that your issue occurs with:

• CLI: (run tns --version to fetch it) 6.0.0
• Cross-platform modules: (check the 'version' attribute in the 6.0.0
  node_modules/tns-core-modules/package.json file in your project)
• Runtime(s): 6.0.0

Please, tell us how to recreate the issue in as much detail as possible.

Currently the seed structure has npm scripts that will trigger 'tsc' inside the src folder which will produce JavaScript files in it. With NativeScript 6.0.0 any symlinked plugin should not contain both TypeScript and JavaScript files because this can make webpack work unexpectedly.