是否有针对此错误消息的解决方案（因果打字稿）？

Question

我运行karma start时收到以下消息：

  

未捕获的错误：找不到入口点   [/home/sample/sampleproj/test/base.spec.ts]（由commonjs.js要求）   在node_modules / karma-typescript / dist / client / commonjs.js：13：17

如何解决这个问题？

import 'zone.js/dist/zone';
import 'zone.js/dist/long-stack-trace-zone';
import 'zone.js/dist/proxy';
import 'zone.js/dist/sync-test';
import 'zone.js/dist/jasmine-patch';
import 'zone.js/dist/async-test';
import 'zone.js/dist/fake-async-test';
import { TestBed } from '@angular/core/testing';
import { BrowserDynamicTestingModule, platformBrowserDynamicTesting } from '@angular/platform-browser-dynamic/testing';

TestBed.initTestEnvironment(BrowserDynamicTestingModule, platformBrowserDynamicTesting());