Reply to Typescript error with on Invalid Date

timo_u — Invalid Date

I am trying to compile the colyseus-examples project to javascript. For some reason I get this typescript compilation error from the colyseus package:

C:\projects\colyseus-examples>tsc --version
Version 3.5.3

C:\projects\colyseus-examples>npm run tsc

colyseus-examples@1.0.0 tsc C:\projects\colyseus-examples
tsc

node_modules/colyseus/lib/MatchMaker.d.ts:12:45 - error TS8020: JSDoc types can only be used inside documentation comments.

12 declare type RemoteRoomResponse = [string?, T?];
~~~~~~~

node_modules/colyseus/lib/MatchMaker.d.ts:12:54 - error TS8020: JSDoc types can only be used inside documentation comments.

12 declare type RemoteRoomResponse = [string?, T?];
~~

npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! colyseus-examples@1.0.0 tsc: tsc
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the colyseus-examples@1.0.0 tsc script.

What could be the issue here?

To perform the compilation to javascript, I added tsc command to the colyseus-examples' package.json file under scripts:
"scripts": {
"tsc": "tsc",
"start": "nodemon --watch '*/.ts' --exec ts-node index.ts",
"heroku-postbuild": "npm run build"
},