webstorm + typescript "unresolved variable" after adding reference path -

i'm using latest webstorm eap 7 130.958.

i have had buggy behavior since version 6 came out typescript support. problem in below example code applies "unresolved variable" baseclass in extendedclass.ts moment add ...

///<reference path="./interfaces.ts"/> 

if remove reference path error goes away. happens time extend class imported node module when reference path exists. how did make way through 6 7?

interfaces.ts

interface ibaseclass {     str:string; } 

baseclass.ts

///<reference path="./interfaces.ts"/> export class baseclass implements ibaseclass{     constructor(public str:string){         return str+str;     } } 

extendedclass.ts

///<reference path="./interfaces.ts"/> import baseclassmodule = module("./baseclass");  class extendedclass extends baseclassmodule.baseclass{     constructor(public str:string){         super(str);     } }  var extendedclass:extendedclass = new extendedclass("yo");  console.log(extendedclass); 

this bug. can add ///<reference path="./baseclass.ts"/> in extendedclass.ts file workaround now. please watch web-7645 notified when fixed.