无法将内容列表添加到我的操作中

如何解决无法将内容列表添加到我的操作中

我正在尝试根据此文档https://developers.google.com/assistant/conversational/prompts-selection#creating_a_list添加一个带有内容列表的场景，但是当我尝试调用该场景时，出现了此错误： SlotRequested Failed to create event. ErrorId: 8e964c04-0f07-40ce-ba60-5497385796bd。

This is the configuration of the slot filling into the scene

以下是Webhook返回的响应：

{
  "responseJson": {
    "prompt": {
      "override": false,"firstSimple": {
        "speech": "Questa è una prova,scegli uno di questi tre:"
      },"content": {
        "list": {
          "title": "Alternative trovate:","items": [
            {
              "key": "Prova1"
            },{
              "key": "Prova2"
            },{
              "key": "Prova3"
            }
          ]
        }
      },"lastSimple": {
        "speech": "Preferisci il primo,il secondo o il terzo?"
      },"suggestions": []
    },"scene": {
      "name": "chooseAlternativeDealers","slotFillingStatus": "COLLECTING","slots": {
        "dealer_options": {
          "mode": "required","status": "SLOT_UNSPECIFIED","updated": false
        }
      }
    },"session": {
      "id": "ABwppHHy6xRy_5IK0uOf9pplFJgbbJkT6qSs_HioKvJ7bxuXipwPvO3qONuforo1SWISquCM_D9UNs6GYCw","params": {
        "ALTERNATIVES_EXIT_CODE": 0
      },"typeOverrides": [
        {
          "name": "dealer_options","mode": "TYPE_REPLACE","synonym": {
            "entries": [
              {
                "name": "Prova1","synonyms": [
                  "Il primo"
                ],"display": {
                  "title": "Prova1","description": "desc1","image": {
                    "url": "https://developers.google.com/assistant/assistant_96.png"
                  }
                }
              },{
                "name": "Prova2","synonyms": [
                  "Il secondo"
                ],"display": {
                  "title": "Prova2","description": "desc2",{
                "name": "Prova3","synonyms": [
                  "Il terzo"
                ],"display": {
                  "title": "Prova3","description": "desc3","image": {
                    "url": "https://developers.google.com/assistant/assistant_96.png"
                  }
                }
              }
            ]
          }
        }
      ],"languageCode": ""
    },"user": {
      "locale": "it-IT","params": {},"accountLinkingStatus": "ACCOUNT_LINKING_STATUS_UNSPECIFIED","verificationStatus": "VERIFIED","lastSeenTime": "2020-11-01T19:31:11Z","packageEntitlements": []
    },"home": {
      "params": {}
    },"device": {
      "capabilities": [
        "SPEECH","RICH_RESPONSE","LONG_FORM_AUdio"
      ]
    }
  }
}

这是引发错误的事件（slotRequested）的日志：

Failed to create event. ErrorId: d52e7c20-3bd6-4106-a03a-d840aef86b2b.
{
  "slotRequested": {},"responses": [
    {
      "firstSimple": {
        "speech": "Questa è una prova,scegli uno di questi tre:","text": "Questa è una prova,il secondo o il terzo?","text": "Preferisci il primo,il secondo o il terzo?"
      }
    }
  ]
}

------在多次尝试后编辑------

尝试解决该问题，我遵循了this post，此刻我再也没有错误SlotRequested Failed to create event. ErrorId: 8e964c04-0f07-40ce-ba60-5497385796bd了，但是列表未呈现。现在，如果我选择一种可能的选项，则该插槽（被代码覆盖）是正确匹配的，因此问题似乎仅在于列表呈现。