如何处理Angular应用的错误消息: No pipe found with name async
错误消息：Failed to compile.src/app/ngrxdemo/container/component/counter/counter.component.html:8:27 - error NG8004: No pipe found with name ‘async’.8 当前数：{{ counter$ | async }}~~~~~src/app/ngrxdemo/container/component/counter/counter.component.
