Unable to run storybook due to Typescript error in Terminal

[panpan-lin]

Detailed description

This is a bug or a general issue.

I am trying to run carbon-components-angular project itself. I was not able to run storybook, due to error in Terminal. I'm on the latest master, with the last commit being ef584a0

Steps to reproduce the issue

1. Git clone the project
2. run npm install
3. run npm run storybook
4. unable to run storybook, with the following error shown in Terminal:

ERROR in ./src/modal/modal.service.ts
[tsl] ERROR in /Users/panpanlin/git/carbon-components-angular/src/modal/modal.service.ts(89,109)
      TS1122: A tuple type element list cannot be empty.

Additional information

• screenshot

Noticed in the screenshot that my Visual Studio Code editor is also complaining about the empty tuple type element for `buttons` on line 89 of the file `/src/modal/modal.service.ts`.

• note
  As a workaround, I change buttons?: [] to buttons?: any in the offending line in the code base.

Not sure if it is related to: microsoft/TypeScript#6524

[carbon-bot]

🎉 This issue has been resolved in version 1.8.4 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀