what is the entry chunk runtime mean

[honchy]

https://github.com/webpack/docs/wiki/code-splitting

An entry chunk contains the runtime plus a bunch of modules.

I want to know more about the runtime. what is the runtime mean?

It's possible to configure multiple entry points that will result in multiple entry chunks. The entry chunk contains the runtime and there must only be one runtime on a page (there are exceptions).

why multi runtime will cause exceptions

[meetDeveloper]

Can someone answer?