Load file error

[buddyackerman]

After starting Karma I see it load most every file in my app then I get the following error

Chrome 51.0.2704 (Windows 10 0.0.0) ERROR
Error: (SystemJS) Error: XHR error (404 Not Found) loading app/findpropertyservice/find-property-service.js
Error loading app/findpropertyservice/find-property-service.js as "../findpropertyservice/find-property-service" from app/FindProperty/find-property.js

This is after it appears to have been successfully loaded previously in the startup process

Fetching C:/Projects/Portal/app/FindPropertyService/find-property-service.js
serving (cached): C:/Projects/Portal/app/FindPropertyService/find-property-service.js

After the apparent successful loading (well after), I see this line

WARN [web-server]: 404: /base/app/findpropertyservice/find-property-service.js

The error above comes long after the warning. I don't know of anything special about this particular service that would cause this and it is referenced in several components in my app. I have other services in my app and those seem to load without error.

My karma.,config.js

module.exports = function(config) {
config.set({

basePath: '.',

plugins: ['karma-systemjs', 'karma-jasmine', 'karma-chrome-launcher'],

frameworks: ['jasmine', 'systemjs'],

files: [
'unittests//*.js',
'app//*.js'
],

exclude: [
'app/app.js'
],

systemjs: {
configFile: 'systemjs.config.js',

   serveFiles: [
       'app/**/*.js',
       'node_modules/**/*.js'
   ],

   // SystemJS configuration specifically for tests, added after your config file. 
   // Good for adding test libraries and mock modules 
   config: {
       // paths: {
           // 'angular-mocks': 'bower_components/angular-mocks/angular-mocks.js'
       // }
   }

},

preprocessors: {
},

reporters: ['progress'],

port: 9876,

colors: true,

logLevel: config.LOG_DEBUG,

autoWatch: true,

browsers: ['Chrome'],

singleRun: false,

concurrency: Infinity
})
}

I'm adding the startup log here.

13 09 2016 14:47:22.433:DEBUG [plugin]: Loading plugin karma-systemjs.
13 09 2016 14:47:22.474:DEBUG [plugin]: Loading plugin karma-jasmine.
13 09 2016 14:47:22.477:DEBUG [plugin]: Loading plugin karma-chrome-launcher.
13 09 2016 14:47:22.500:DEBUG [web-server]: Instantiating middleware
13 09 2016 14:47:24.143:DEBUG [watcher]: Excluded file "C:/Projects/Portal/app/app.js"
13 09 2016 14:47:24.148:DEBUG [watcher]: Excluded file "C:/Projects/Portal/app/app.js"
13 09 2016 14:47:26.028:DEBUG [karma]: List of files has changed, trying to execute
13 09 2016 14:47:26.028:WARN [karma]: No captured browser, open http://localhost:9876/
13 09 2016 14:47:26.101:DEBUG [watcher]: Watching "C:/Projects/Portal/unittests"
13 09 2016 14:47:26.103:DEBUG [watcher]: Watching "C:/Projects/Portal/app"
13 09 2016 14:47:26.105:DEBUG [watcher]: Watching "C:/Projects/Portal/node_modules"
13 09 2016 14:47:26.110:INFO [karma]: Karma v1.2.0 server started at http://localhost:9876/
13 09 2016 14:47:26.112:INFO [launcher]: Launching browser Chrome with unlimited concurrency
13 09 2016 14:47:26.145:INFO [launcher]: Starting browser Chrome
13 09 2016 14:47:26.148:DEBUG [temp-dir]: Creating temp dir at C:\Users\AACKER1\AppData\Local\Temp\karma-24510363
13 09 2016 14:47:26.150:DEBUG [launcher]: C:\Program Files (x86)\Google\Chrome\Application\chrome.exe --user-data-dir=C:\Users\AACKER1\AppData\Local\Temp\karma-24510363 --no-default-browser-check --no-first-run --disable-default-apps --disable-popup-blocking --disable-translate --disable-background-timer-throttling http://localhost:9876/?id=24510363
13 09 2016 14:47:29.208:DEBUG [web-server]: serving: C:\Projects\Portal\node_modules\karma\static/client.html
13 09 2016 14:47:32.486:DEBUG [web-server]: serving: C:\Projects\Portal\node_modules\karma\static/karma.js
13 09 2016 14:47:34.407:DEBUG [karma]: A browser has connected on socket /#hgR7OWZLbbyrGgetAAAA
13 09 2016 14:47:34.860:DEBUG [web-server]: upgrade /socket.io/?EIO=3&transport=websocket&sid=hgR7OWZLbbyrGgetAAAA
13 09 2016 14:47:34.934:INFO [Chrome 51.0.2704 (Windows 10 0.0.0)]: Connected on socket /#hgR7OWZLbbyrGgetAAAA with id 24510363
13 09 2016 14:47:34.936:DEBUG [launcher]: Chrome (id 24510363) captured in 8.822 secs
13 09 2016 14:47:34.937:DEBUG [karma]: All browsers are ready, executing
13 09 2016 14:47:34.938:DEBUG [karma]: Captured 1 browsers
13 09 2016 14:47:35.784:DEBUG [web-server]: serving: C:\Projects\Portal\node_modules\karma\static/favicon.ico
13 09 2016 14:47:38.139:DEBUG [middleware:karma]: custom files null null
13 09 2016 14:47:38.141:DEBUG [middleware:karma]: Serving static request /context.html
13 09 2016 14:47:38.551:DEBUG [web-server]: serving: C:\Projects\Portal\node_modules\karma\static/context.html
13 09 2016 14:47:38.618:DEBUG [middleware:source-files]: Requesting /base/node_modules/systemjs/dist/system.js?378a7b7d3bc5876f63670aaadd27b5f9b1d84a16 /
13 09 2016 14:47:38.621:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/systemjs/dist/system.js
13 09 2016 14:47:38.623:DEBUG [middleware:source-files]: Requesting /base/node_modules/karma-systemjs/lib/adapter.js?2a4f81c2bf7b0d88ae1aee0a13e56d0fce8e9c6e /
13 09 2016 14:47:38.625:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/karma-systemjs/lib/adapter.js
13 09 2016 14:47:38.631:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/systemjs/dist/system.js
13 09 2016 14:47:38.637:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/karma-systemjs/lib/adapter.js
13 09 2016 14:47:38.646:DEBUG [web-server]: serving: C:\Projects\Portal\node_modules\karma\static/context.js
13 09 2016 14:47:38.752:DEBUG [middleware:source-files]: Requesting /base/app/Authorization/authorize.js /
13 09 2016 14:47:38.754:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Authorization/authorize.js
13 09 2016 14:47:38.759:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Authorization/authorize.js
13 09 2016 14:47:38.761:DEBUG [middleware:source-files]: Requesting /base/app/Authorization/authservice.js /
13 09 2016 14:47:38.763:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Authorization/authservice.js
13 09 2016 14:47:38.766:DEBUG [middleware:source-files]: Requesting /base/app/Common/ApiResponse.js /
13 09 2016 14:47:38.768:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Common/ApiResponse.js
13 09 2016 14:47:38.773:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Authorization/authservice.js
13 09 2016 14:47:38.777:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Common/ApiResponse.js
13 09 2016 14:47:38.780:DEBUG [middleware:source-files]: Requesting /base/app/Common/Pipes/FilterOnField.js /
13 09 2016 14:47:38.782:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Common/Pipes/FilterOnField.js
13 09 2016 14:47:38.784:DEBUG [middleware:source-files]: Requesting /base/app/Common/Validators/EmailValidator.js /
13 09 2016 14:47:38.786:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Common/Validators/EmailValidator.js
13 09 2016 14:47:38.788:DEBUG [middleware:source-files]: Requesting /base/app/Common/Validators/FieldMatchingValidator.js /
13 09 2016 14:47:38.790:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Common/Validators/FieldMatchingValidator.js
13 09 2016 14:47:38.793:DEBUG [middleware:source-files]: Requesting /base/app/Common/constants.js /
13 09 2016 14:47:38.805:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Common/constants.js
13 09 2016 14:47:38.808:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Common/Pipes/FilterOnField.js
13 09 2016 14:47:38.816:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Common/Validators/EmailValidator.js
13 09 2016 14:47:38.821:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Common/Validators/FieldMatchingValidator.js
13 09 2016 14:47:38.826:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Common/constants.js
13 09 2016 14:47:38.829:DEBUG [middleware:source-files]: Requesting /base/app/Common/lib.js /
13 09 2016 14:47:38.831:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Common/lib.js
13 09 2016 14:47:38.840:DEBUG [middleware:source-files]: Requesting /base/app/CustomerProfile/customer-profile.js /
13 09 2016 14:47:38.841:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/CustomerProfile/customer-profile.js
13 09 2016 14:47:38.852:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Common/lib.js
13 09 2016 14:47:38.856:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/CustomerProfile/customer-profile.js
13 09 2016 14:47:38.862:DEBUG [middleware:source-files]: Requesting /base/app/FindProperty/find-property.js /
13 09 2016 14:47:38.864:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/FindProperty/find-property.js
13 09 2016 14:47:38.874:DEBUG [middleware:source-files]: Requesting /base/app/FindPropertyService/find-property-service.js /
13 09 2016 14:47:38.876:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/FindPropertyService/find-property-service.js
13 09 2016 14:47:38.885:DEBUG [middleware:source-files]: Requesting /base/app/FindPropertyService/property-info.js /
13 09 2016 14:47:38.887:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/FindPropertyService/property-info.js
13 09 2016 14:47:38.896:DEBUG [middleware:source-files]: Requesting /base/app/FindPropertyService/property-search-dto.js /
13 09 2016 14:47:38.898:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/FindPropertyService/property-search-dto.js
13 09 2016 14:47:38.910:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/FindProperty/find-property.js
13 09 2016 14:47:38.915:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/FindPropertyService/find-property-service.js
13 09 2016 14:47:38.921:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/FindPropertyService/property-info.js
13 09 2016 14:47:38.928:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/FindPropertyService/property-search-dto.js
13 09 2016 14:47:38.931:DEBUG [middleware:source-files]: Requesting /base/app/HomeDetail/home-detail.js /
13 09 2016 14:47:38.933:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/HomeDetail/home-detail.js
13 09 2016 14:47:38.943:DEBUG [middleware:source-files]: Requesting /base/app/HomeDetail/home-info.js /
13 09 2016 14:47:38.944:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/HomeDetail/home-info.js
13 09 2016 14:47:38.955:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/HomeDetail/home-detail.js
13 09 2016 14:47:38.959:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/HomeDetail/home-info.js
13 09 2016 14:47:38.963:DEBUG [middleware:source-files]: Requesting /base/app/Login/login.js /
13 09 2016 14:47:38.964:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/Login/login.js
13 09 2016 14:47:38.973:DEBUG [middleware:source-files]: Requesting /base/app/MessageCenter/message-center.js /
13 09 2016 14:47:38.975:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/MessageCenter/message-center.js
13 09 2016 14:47:38.983:DEBUG [middleware:source-files]: Requesting /base/app/NotificatonsService/notifications-service.js /
13 09 2016 14:47:38.986:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/NotificatonsService/notifications-service.js
13 09 2016 14:47:38.995:DEBUG [middleware:source-files]: Requesting /base/app/PasswordReset/password-reset.js /
13 09 2016 14:47:38.996:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/PasswordReset/password-reset.js
13 09 2016 14:47:39.007:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/Login/login.js
13 09 2016 14:47:39.011:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/MessageCenter/message-center.js
13 09 2016 14:47:39.019:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/NotificatonsService/notifications-service.js
13 09 2016 14:47:39.023:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/PasswordReset/password-reset.js
13 09 2016 14:47:39.030:DEBUG [middleware:source-files]: Requesting /base/app/PortalHome/portal.home.js /
13 09 2016 14:47:39.033:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/PortalHome/portal.home.js
13 09 2016 14:47:39.037:DEBUG [middleware:source-files]: Requesting /base/app/ProfileService/profile-service.js /
13 09 2016 14:47:39.044:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/ProfileService/profile-service.js
13 09 2016 14:47:39.048:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/PortalHome/portal.home.js
13 09 2016 14:47:39.057:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/ProfileService/profile-service.js
13 09 2016 14:47:39.061:DEBUG [middleware:source-files]: Requesting /base/app/ProfileService/user-profile.js /
13 09 2016 14:47:39.064:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/ProfileService/user-profile.js
13 09 2016 14:47:39.072:DEBUG [middleware:source-files]: Requesting /base/app/RegisterUser/register-user.js /
13 09 2016 14:47:39.074:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/RegisterUser/register-user.js
13 09 2016 14:47:39.083:DEBUG [middleware:source-files]: Requesting /base/node_modules/@angular/core/bundles/core.umd.js /
13 09 2016 14:47:39.086:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/@angular/core/bundles/core.umd.js
13 09 2016 14:47:39.096:DEBUG [middleware:source-files]: Requesting /base/node_modules/@angular/router/bundles/router.umd.js /
13 09 2016 14:47:39.098:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/@angular/router/bundles/router.umd.js
13 09 2016 14:47:39.110:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/ProfileService/user-profile.js
13 09 2016 14:47:39.114:DEBUG [web-server]: serving (cached): C:/Projects/Portal/app/RegisterUser/register-user.js
13 09 2016 14:47:39.122:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/@angular/core/bundles/core.umd.js
13 09 2016 14:47:39.128:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/@angular/router/bundles/router.umd.js
13 09 2016 14:47:39.133:DEBUG [middleware:source-files]: Requesting /base/node_modules/@angular/http/bundles/http.umd.js /
13 09 2016 14:47:39.136:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/@angular/http/bundles/http.umd.js
13 09 2016 14:47:39.145:DEBUG [middleware:source-files]: Requesting /base/node_modules/angular2-jwt/angular2-jwt.js /
13 09 2016 14:47:39.147:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/angular2-jwt/angular2-jwt.js
13 09 2016 14:47:39.158:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/@angular/http/bundles/http.umd.js
13 09 2016 14:47:39.166:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/angular2-jwt/angular2-jwt.js
13 09 2016 14:47:39.171:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/Observable.js /
13 09 2016 14:47:39.176:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/Observable.js
13 09 2016 14:47:39.179:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/Rx.js /
13 09 2016 14:47:39.187:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/Rx.js
13 09 2016 14:47:39.191:DEBUG [middleware:source-files]: Requesting /base/node_modules/@angular/forms/bundles/forms.umd.js /
13 09 2016 14:47:39.193:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/@angular/forms/bundles/forms.umd.js
13 09 2016 14:47:39.202:DEBUG [middleware:source-files]: Requesting /base/app/findpropertyservice/find-property-service.js /
13 09 2016 14:47:39.204:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/app/findpropertyservice/find-property-service.js
13 09 2016 14:47:39.215:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/Observable.js
13 09 2016 14:47:39.222:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/Rx.js
13 09 2016 14:47:39.226:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/@angular/forms/bundles/forms.umd.js
13 09 2016 14:47:39.238:WARN [web-server]: 404: /base/app/findpropertyservice/find-property-service.js
13 09 2016 14:47:39.241:DEBUG [middleware:source-files]: Requesting /base/node_modules/lodash/index.js /
13 09 2016 14:47:39.243:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/lodash/index.js
13 09 2016 14:47:39.251:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/Subject.js /
13 09 2016 14:47:39.253:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/Subject.js
13 09 2016 14:47:39.266:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/lodash/index.js
13 09 2016 14:47:39.274:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/Subject.js
13 09 2016 14:47:39.277:DEBUG [middleware:source-files]: Requesting /base/node_modules/@angular/common/bundles/common.umd.js /
13 09 2016 14:47:39.279:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/@angular/common/bundles/common.umd.js
13 09 2016 14:47:39.286:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/observable/from.js /
13 09 2016 14:47:39.293:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/observable/from.js
13 09 2016 14:47:39.297:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/observable/of.js /
13 09 2016 14:47:39.300:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/observable/of.js
13 09 2016 14:47:39.310:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/operator/every.js /
13 09 2016 14:47:39.312:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/operator/every.js
13 09 2016 14:47:39.322:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/@angular/common/bundles/common.umd.js
13 09 2016 14:47:39.331:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/observable/from.js
13 09 2016 14:47:39.343:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/observable/of.js
13 09 2016 14:47:39.350:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/operator/every.js
13 09 2016 14:47:39.355:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/operator/map.js /
13 09 2016 14:47:39.357:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/operator/map.js
13 09 2016 14:47:39.363:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/operator/mergeAll.js /
13 09 2016 14:47:39.366:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/operator/mergeAll.js
13 09 2016 14:47:39.379:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/operator/map.js
13 09 2016 14:47:39.385:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/operator/mergeAll.js
13 09 2016 14:47:39.391:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/operator/mergeMap.js /
13 09 2016 14:47:39.393:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/operator/mergeMap.js
13 09 2016 14:47:39.396:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/operator/reduce.js /
13 09 2016 14:47:39.404:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/operator/reduce.js
13 09 2016 14:47:39.409:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/observable/fromPromise.js /
13 09 2016 14:47:39.415:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/observable/fromPromise.js
13 09 2016 14:47:39.422:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/operator/mergeMap.js
13 09 2016 14:47:39.430:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/operator/reduce.js
13 09 2016 14:47:39.435:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/observable/fromPromise.js
13 09 2016 14:47:39.439:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/operator/concatAll.js /
13 09 2016 14:47:39.441:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/operator/concatAll.js
13 09 2016 14:47:39.448:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/util/EmptyError.js /
13 09 2016 14:47:39.450:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/util/EmptyError.js
13 09 2016 14:47:39.460:DEBUG [middleware:source-files]: Requesting /base/node_modules/rxjs/operator/last.js /
13 09 2016 14:47:39.462:DEBUG [middleware:source-files]: Fetching C:/Projects/Portal/node_modules/rxjs/operator/last.js
13 09 2016 14:47:39.473:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/operator/concatAll.js
13 09 2016 14:47:39.478:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/util/EmptyError.js
13 09 2016 14:47:39.483:DEBUG [web-server]: serving (cached): C:/Projects/Portal/node_modules/rxjs/operator/last.js
Chrome 51.0.2704 (Windows 10 0.0.0) ERROR
Error: (SystemJS) Error: XHR error (404 Not Found) loading app/findpropertyservice/find-property-service.js
Error loading app/findpropertyservice/find-property-service.js as "../findpropertyservice/find-property-service" from app/FindProperty/find-property.js

[m-architek]

I had similar error.

Try to add strictImportSequence: true field to systemjs block in config file.
It seems to fix it for me, I've got no idea why. ;)