Cannot resolve file

I have a Typescript file:

///<reference path='../typings/tsd.d.ts'/>
import {inject, bindable} from 'aurelia-framework';
import {HttpClient} from 'aurelia-http-client';

interface TruckListRow {
    idtruckloads:number;
    truckid:string;
    destination:string;
    eta:string;
    driver:string;
}

@inject(HttpClient)
export class App{
    http:HttpClient;
    TruckList : TruckListRow[];
    @bindable SelectedRow : TruckListRow;

    constructor (http:HttpClient){
        this.http=http;
    }

    getTruckLoadData($event){
        return new Promise((resolve, reject) => resolve({
            data: this.http.get('localhost/truckload'),
            count: 2
    }));
    };

    addItem(){
        console.debug('addItem');
    }

    deleteItem(){
        console.debug('deleteItem');
    }

    editItem(){
        console.debug('editItem');
    }
}

Using Typescript 1.6.2 this compiles into:

var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc);
    switch (arguments.length) {
        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
    }
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { inject, bindable } from 'aurelia-framework';
import { HttpClient } from 'aurelia-http-client';
export let App = class {
    constructor(http) {
        this.http = http;
    }
    getTruckLoadData($event) {
        return new Promise((resolve, reject) => resolve({
            data: this.http.get('localhost/truckload'),
            count: 2
        }));
    }
    ;
    addItem() {
        console.debug('addItem');
    }
    deleteItem() {
        console.debug('deleteItem');
    }
    editItem() {
        console.debug('editItem');
    }
};
__decorate([
    bindable, 
    __metadata('design:type', Object)
], App.prototype, "SelectedRow");
App = __decorate([
    inject(HttpClient), 
    __metadata('design:paramtypes', [HttpClient])
], App);
//# sourceMappingURL=app.js.map

The import statements in the javascript file report: Cannot resolve file ...

The Typescript compiler finds the import files just fine via a jspm config.js mapping.  Why does the javascript version have a problem?