MQTT Mapped failed about ditto-examples HOT 3 CLOSED

{
  "id": "ed25e85e-a076-4e9e-9463-12ca5a1ca723",
  "name": null,
  "connectionType": "mqtt",
  "connectionStatus": "open",
  "uri": "tcp://test.mosquitto.org:1883",
  "sources": [
    {
      "addresses": [
        "ditto-tutorial/#"
      ],
      "consumerCount": 1,
      "qos": 0,
      "authorizationContext": [
        "nginx:ditto"
      ],
      "headerMapping": {},
      "payloadMapping": [
        "javascript"
      ],
      "replyTarget": {
        "address": "{{header:reply-to}}",
        "headerMapping": {},
        "expectedResponseTypes": [
          "response",
          "error"
        ],
        "enabled": true
      }
    }
  ],
  "targets": [
    {
      "address": "ditto-tutorial/{{ thing:id }}",
      "topics": [
        "_/_/things/twin/events",
        "_/_/things/live/messages"
      ],
      "qos": 0,
      "authorizationContext": [
        "nginx:ditto"
      ],
      "headerMapping": {}
    }
  ],
  "clientCount": 1,
  "failoverEnabled": true,
  "validateCertificates": true,
  "processorPoolSize": 1,
  "mappingDefinitions": {
    "javascript": {
      "mappingEngine": "JavaScript",
      "options": {
        "incomingScript": "function mapToDittoProtocolMsg(headers, textPayload, bytePayload, contentType) {\r\n    const jsonString = String.fromCharCode.apply(null, new Uint8Array(bytePayload));\r\n    const jsonData = JSON.parse(jsonString); \r\n    const thingId = jsonData.thingId.split(':'); \r\n    const value = { \r\n        temp_sensor: { \r\n            properties: { \r\n                value: jsonData.temp \r\n            } \r\n        },\r\n        altitude: {            \r\n            properties: {                \r\n                value: jsonData.alt            \r\n            }        \r\n        }    \r\n    };    \r\n    return Ditto.buildDittoProtocolMsg(\r\n        thingId[0], // your namespace \r\n        thingId[1], \r\n        'things', // we deal with a thing\r\n        'twin', // we want to update the twin\r\n        'commands', // create a command to update the twin\r\n        'modify', // modify the twin\r\n        '/features', // modify all features at once\r\n        headers, \r\n        value\r\n    );\r\n}",
        "outgoingScript": ""
      }
    }
  },
  "tags": []
}