-- Temporary Fix. Shutdown Webstorm and deleted the .idea folders and it realised that the files it thought were broken weren't. Unfortunately new files are getting the warning until I repeat this. it's a massive pain in the a**e.
I'm having a minor annoyance with the latest version of webstorm, it's got a liberal smattering of TS1219 errors on my Angular 2 project targeting @Component() @Input() etc, but not in all files.
It compiles fine as I have the experimentalDecorators set to true, but it's annoying to have red splattered all over the place.
This one is fine:
This one isn't: