Bot Framework Composer移交请求报错：Dialog.onComputeId()未实现

在Bot Framework Composer中创建空白机器人，仅在「Unknown intent」触发器中添加「Send a handoff request」操作后，点击「Start bot」时触发以下错误：
Error: Dialog.onComputeId(): not implemented.

完整错误日志 #

Error occurred building the bot

Error: Dialog.onComputeId(): not implemented. 
at SendHandoffActivity.onComputeId (C:\Users\User\Handoff\Handoff\node_modules\botbuilder-dialogs\lib\dialog.js:336:15) 
at SendHandoffActivity.get id [as id] (C:\Users\User\Handoff\Handoff\node_modules\botbuilder-dialogs\lib\dialog.js:133:29) 
at C:\Users\User\Handoff\Handoff\node_modules\botbuilder-dialogs-adaptive\lib\actions\actionScope.js:276:57 
at Array.map (<anonymous>) 
at ActionScope.onComputeId (C:\Users\User\Handoff\Handoff\node_modules\botbuilder-dialogs-adaptive\lib\actions\actionScope.js:276:34) 
at ActionScope.get id [as id] (C:\Users\User\Handoff\Handoff\node_modules\botbuilder-dialogs\lib\dialog.js:133:29) 
at DialogSet.add (C:\Users\User\Handoff\Handoff\node_modules\botbuilder-dialogs\lib\dialogSet.js:126:71) 
at C:\Users\User\Handoff\Handoff\node_modules\botbuilder-dialogs-adaptive\lib\adaptiveDialog.js:140:75 
at Array.forEach (<anonymous>) 
at AdaptiveDialog.ensureDependenciesInstalled (C:\Users\User\Handoff\Handoff\node_modules\botbuilder-dialogs-adaptive\lib\adaptiveDialog.js:140:43)

机器人完整代码 #

{  
  "$kind": "Microsoft.AdaptiveDialog",  
  "$designer": {    
    "name": "Handoff",    
    "description": "",    
    "id": "A79tBe"  
  },  
  "autoEndDialog": true,  
  "defaultResultProperty": "dialog.result",  
  "triggers": [    
    {      
      "$kind": "Microsoft.OnConversationUpdateActivity",      
      "$designer": {        
        "id": "376720"      
      },      
      "actions": [        
        {          
          "$kind": "Microsoft.Foreach",          
          "$designer": {            
            "id": "518944",            
            "name": "Loop: for each item"          
          },          
          "itemsProperty": "turn.Activity.membersAdded",          
          "actions": [            
            {              
              "$kind": "Microsoft.IfCondition",              
              "$designer": {                
                "id": "641773",                
                "name": "Branch: if/else"              
              },              
              "condition": "=string(dialog.foreach.value.id) != string(turn.Activity.Recipient.id)",              
              "actions": [                
                {                  
                  "$kind": "Microsoft.SendActivity",                  
                  "$designer": {                    
                    "id": "859266",                    
                    "name": "Send a response"                  
                  },                  
                  "activity": "${SendActivity_Greeting()}"                
                }              
              ]            
            }          
          ]        
        }      
      ]    
    },    
    {      
      "$kind": "Microsoft.OnUnknownIntent",      
      "$designer": {        
        "id": "mb2n1u"      
      },      
      "actions": [        
        {          
          "$kind": "Microsoft.SendHandoffActivity",          
          "$designer": {            
            "id": "74xAHm"          
          },          
          "context": {            
            "context": "c"          
          },          
          "transcript": {            
            "transcript": "t"          
          }        
        }      
      ]    
    }  
  ],  
  "generator": "Handoff.lg",  
  "id": "Handoff",  
  "recognizer": "Handoff.lu.qna"
}

解决方案 #

• 统一依赖版本：检查package.json中botbuilder-dialogs、botbuilder-dialogs-adaptive等核心包的版本，确保所有Bot Framework相关包版本一致，避免版本不兼容导致的抽象方法未实现问题，建议升级到官方稳定兼容版本。
• 修正组件配置：SendHandoffActivity的context和transcript字段需传入合法的表达式而非固定字符串，示例中的"context": "c"不符合要求，可修改为如"context": "=turn.context"、"transcript": "=turn.transcript"这类符合Bot Framework表达式语法的值。
• 重置项目依赖：删除项目根目录下的node_modules文件夹和package-lock.json文件，执行npm install重新安装所有依赖，清除可能存在的缓存异常。
• 匹配Composer版本：确保使用的Bot Framework Composer版本与项目依赖包版本兼容，优先选择官方推荐的稳定版Composer。

内容的提问来源于stack exchange，提问作者xaleel