HarmonyOS router_map.json配置的buildFunction抛错

// router_map.json
{
  "routerMap": [
  {
    "name": "pageOne",
  "pageSourceFile": "src/main/ets/pages/PageOne.ets",
  "buildFunction": "PageOneBuilder",
  "data": {
    "description": "this is pageOne"
  }
  },
  {
    "name": "pageTwo",
  "pageSourceFile": "src/main/ets/pages/PageTwo.ets",
  "buildFunction": "PageTwoBuilder"
  }
  ]
}


// PageOne.ets
import { BusinessError } from '@ohos.base';

class TmpClass{
  count:number = 10
}

class ParamWithOp {
  operation: number = 1
  count: number = 10
}

@Builder
export function PageOneBuilder(name: string, param: Object) {
  PageOne()
}

@Component
export struct PageOne {
  pageInfo: NavPathStack = new NavPathStack();
  @State message: string = 'Hello World'

  build() {
    NavDestination() {
      Column() {
        Text(this.message)
          .width('80%')
          .height(50)
          .margin(10)

        Button('pushPath', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(()=>{
            this.pageInfo.pushPath({name: 'pageTwo', param: new ParamWithOp(), onPop: (popInfo: PopInfo)=>{
              this.message = '[pushPath]last page is: ' + popInfo.info.name + ', result: ' + JSON.stringify(popInfo.result);
            }}); // 将name指定的NavDestination页面信息入栈，传递的数据为param，添加接收处理结果的onPop回调。
          })

        Button('pushPathByName', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(() => {
            let tmp = new TmpClass()
            this.pageInfo.pushPathByName('pageTwo', tmp, (popInfo: PopInfo)=>{
              console.log('[pushPathByName]last page is: ' + popInfo.info.name + ', result: ' + JSON.stringify(popInfo.result))
              this.message = '[pushPathByName]last page is: ' + popInfo.info.name + ', result: ' + JSON.stringify(popInfo.result);
            },false); // 将name指定的NavDestination页面信息入栈，传递的数据为param，添加接收处理结果的onPop回调。
          })

        Button('pushDestination', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(()=>{
            let tmp = new TmpClass()
            // 将name指定的NavDestination页面信息入栈，传递的数据为param，添加接收处理结果的onPop回调。
            this.pageInfo.pushDestination({name: 'pageTwo', param: new ParamWithOp(), onPop: (popInfo: PopInfo)=>{
              this.message = '[pushDestination]last page is: ' + popInfo.info.name + ', result: ' + JSON.stringify(popInfo.result);
            }}).catch((error: BusinessError)=>{
              console.error(`[pushDestination]failed, error code = ${error.code}, error.message = ${error.message}.`);
            }).then(()=>{
              console.error('[pushDestination]success.');
            });
          })

        Button('pushDestinationByName', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(()=>{
            let tmp = new TmpClass()
            // 将name指定的NavDestination页面信息入栈，传递的数据为param，添加接收处理结果的onPop回调。
            this.pageInfo.pushDestinationByName('pageTwo', tmp, (popInfo)=>{
              this.message = '[pushDestinationByName]last page is: ' + popInfo.info.name + ', result: ' + JSON.stringify(popInfo.result);
            }).catch((error: BusinessError)=>{
              console.error(`[pushDestinationByName]failed, error code = ${error.code}, error.message = ${error.message}.`);
            }).then(()=>{
              console.error('[pushDestinationByName]success.');
            });
          })

        Button('pushPathWithoutOnPop', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(()=>{
            this.pageInfo.pushPath({name: 'pageTwo', param: new ParamWithOp()}); // 将name指定的NavDestination页面信息入栈。
          })

        Button('pushPathByNameWithoutOnPop', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(() => {
            let tmp = new TmpClass()
            this.pageInfo.pushPathByName('pageTwo', tmp); // 将name指定的NavDestination页面信息入栈，传递的数据为param。
          })

        Button('pushDestinationWithoutOnPop', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(()=>{
            let tmp = new TmpClass()
            // 将name指定的NavDestination页面信息入栈，传递的数据为param，添加接收处理结果的onPop回调。
            this.pageInfo.pushDestination({name: 'pageTwo', param: new ParamWithOp()})
              .catch((error: BusinessError)=>{
                console.error(`[pushDestinationWithoutOnPop]failed, error code = ${error.code}, error.message = ${error.message}.`);
              }).then(()=>{
              console.error('[pushDestinationWithoutOnPop]success.');
            });
          })

        Button('pushDestinationByNameWithoutOnPop', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(() => {
            let tmp = new TmpClass()
            // 将name指定的NavDestination页面信息入栈，传递的数据为param。
            this.pageInfo.pushDestinationByName('pageTwo', tmp)
              .catch((error: BusinessError)=>{
                console.error(`[pushDestinationByNameWithoutOnPop]failed, error code = ${error.code}, error.message = ${error.message}.`);
              }).then(()=>{
              console.error('[pushDestinationByNameWithoutOnPop]success.');
            });
          })

        Button('clear', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(10)
          .onClick(() => {
            this.pageInfo.clear(); // 清除栈中所有页面。
          })
      }.width('100%').height('100%')
    }.title('pageOne')
    .onBackPressed(() => {
      this.pageInfo.pop({number: 1}) // 弹出路由栈栈顶元素。
      return true
    }).onReady((context: NavDestinationContext) => {
      this.pageInfo = context.pathStack;
    })
  }
}



// PageTwo.ets

class resultClass {
  constructor(count: number) {
    this.count = count;
  }
  count: number = 10
}

@Builder
export function PageTwoBuilder(name: string, pram: Object) {
  PageTwo()
}

@Component
export struct PageTwo {
  pathStack: NavPathStack = new NavPathStack()

  build() {
    NavDestination() {
      Column() {
        Button('pop', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(20)
          .onClick(() => {
            this.pathStack.pop(new resultClass(1)); // 回退到上一个页面，将处理结果传入push的onPop回调中。
          })

        Button('popToName', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(20)
          .onClick(() => {
            this.pathStack.popToName('pageOne', new resultClass(11)); // 将第一个名为name的NavDestination页面移到栈顶，将处理结果传入push的onPop回调中。
          })

        Button('popToIndex', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(20)
          .onClick(() => {
            this.pathStack.popToIndex(0, new resultClass(111)); // 将index指定的NavDestination页面移到栈顶，将处理结果传入push的onPop回调中。
          })

        Button('popWithoutResult', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(20)
          .onClick(() => {
            this.pathStack.popToIndex(0);
          })
      }.width('100%').height('100%')
    }
    .title('pageTwo')
    .onBackPressed(() => {
      this.pathStack.pop(new resultClass(0)); // 回退到上一个页面，将处理结果传入push的onPop回调。
      return true;
    })
    .onReady((context: NavDestinationContext) => {
      this.pathStack = context.pathStack
    })
  }
}
// Index
@Entry
@Component
struct NavigationExample {
  pageInfo: NavPathStack = new NavPathStack()

  aboutToAppear(): void {
    console.log(JSON.stringify(this.pageInfo))
  }
  build() {
    Navigation(this.pageInfo) {
      Column() {
        Button('StartTest', { stateEffect: true, type: ButtonType.Capsule })
          .width('80%')
          .height(40)
          .margin(20)
          .onClick(() => {
            this.pageInfo.pushPath({ name: 'pageOne' }); // 将name指定的NavDestination页面信息入栈。
          })
      }
    }.title('NavIndex')
  }
}