为什么会有一个未捕获的异常呢?

I am getting a few errors using Swift, and when I have tried the solutions listed on other Stack Overflow posts, I get additional errors. The first error I get is NSForwarding: warning: object 0x7dc4ca30 of class 'h2.Items' does not implement methodSignatureForSelector: -- trouble ahead Unrecognized selector -[h2.Items initWithCoder:]I am getting a few errors using Swift, and when