仓颉开发HarmonyOS，报错error: undeclared identifier 'ViewStackProcessor'

error: undeclared identifier 'ViewStackProcessor'
   | 
   | /* 42.24 */        ViewStackProcessor.StartGetAccessRecordingFor(ViewStackProcessor.AllocateNewElmetIdForNextComponent())
   |                    ^^^^^^^^^^^^^^^^^^ 
   | 
note: the error occurs after the macro is expanded
   ==> D:\workspace\gitee\develop-native-harmonyos-ai-assistant-with-cangjie-video\samples\ch5\CangjieAiAssistant\entry\src\main\cangjie\src\page\intelligent_chat_page.cj:42:1:
    | 
42  |   @Entry
    |  _^
43  | | @Component
    | | ...
125 | | }
    | |_^
    |

func build() {
        if (isSelf) {
            Row() {
                Row() {
                    Text(content)
                }.padding(10).backgroundColor(0xffffff).borderRadius(10).constraintSize(maxWidth: 90.percent).margin(
                    right: 10)
            }.justifyContent(FlexAlign.End).width(100.percent).padding(left: 10).margin(top: 10, bottom: 10)
        } else {
            Row() {
                Row() {
                    Text(content)
                }.padding(10).backgroundColor(0xffffff).constraintSize(maxWidth: 90.percent).borderRadius(10).margin(
                    left: 10)
            }.width(100.percent).padding(right: 10).margin(top: 10, bottom: 10, right: 10)
        }
    }