这已经很晚了，但也许它会对您或将来的某人有所帮助.使用 Angular Universal 时会发生这种情况，这是因为服务器端渲染没有可使用的窗口"，只有浏览器有.

This is very late but maybe it will help you or someone in the future. This happens when using Angular Universal, its because the server side rendering doesnt have a 'window' to use, only the browser does.

因此，当执行此代码时，服务器无法找到不存在的窗口.您可以通过删除hammerjs 来解决此问题(这不是必需的，只是为材料 2 和类似的 UI 增加了生活质量)

So when this code is executed the server fails to find the non-existent window. You can fix this by either removing hammerjs (it isnt essential, just adds quality of life to material 2 and similar UI)

或者您可以在此处尝试此修复程序:https://github.com/angular/universal/issues/830

Or you can try this fix here: https://github.com/angular/universal/issues/830

这涉及在 server.ts 代码中定义窗口，以便在它运行时正常工作.

Which involves defining the window in your server.ts code so when it runs it works correctly.