如果用户取消了请求，则会抛出该异常.使用RxJavaCallAdapterFactory时，如果在完成呼叫之前取消订阅，则会发生这种情况.因此，我想在进行呼叫之后的某个时候，您会执行subscription.unsubscribe()来取消基础请求.

That exception gets thrown if the request is cancelled by the user. When using RxJavaCallAdapterFactory this happens if the subscription is unsubscribed before the call can complete. So I guess at some point after you do the call you do subscription.unsubscribe() which cancels the underlying requests.