angular - "@angular/core/testing"' has no exported member ' waitForAsync'

Question

我正在尝试从“@angular/core/testing”导入waitForAsync。我收到此错误:

模块“@angular/core/testing”没有导出成员“waitForAsync”.ts(2305)

知道为什么吗？

Answer 1

waitForAsync 仅自 Angular v10 起存在。 它取代了异步。