javascript - error in compiled .ts with tsc compiler in visual studio code -

there duplicate identifier error in .js tsc compiled code in vs code here .ts file i'm using vs code 0.5 , typescript 1.5.3,there error in line exports.user = user , complaining duplicate:

import store = require("store/mongo") export class user {     public connectionid: string;     public telegram_user: telegram.user;      addtopooldb(next): void {         store.addtopooldb(this, function(err) {             next(err);         });     } } 

and output :

var store = require("store/mongo"); var user = (function () {     function user() {     }      user.prototype.addtopooldb = function (next) {         store.addtopooldb(this, function (err) {             next(err);         });     };     return user; })(); exports.user = user;