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我正在尝试使Alexa技能在我向苹果设备发送正确提示时向我的苹果设备发出“查找我的iPhone”警报。我在开发alexa技能集和编码方面很新颖（特别是在node.js中）。这里是我的话：Alexa技能定制意图中的未定义对象的问题
var phoneId = "I have my values here";
var ipadId = "I have my values here";
var macId = "I have my values here";
var deviceId = "";
var APP_ID = ''; //replace with "amzn1.echo-sdk-ams.app.[your-unique-value-here]";
var AlexaSkill = require('./AlexaSkill');
var alexaResponse;
//Import Apple.js
var Apple = require('./Apple');
var apple = new Apple();
var alertSuccess = "Alert sent to Kenny's phone";
var alertFailed = "Alert couldn't be sent to Kenny's phone. Good luck finding it.";
var FindDevice = function() {
AlexaSkill.call(this, APP_ID);
};
// Extend AlexaSkill
FindDevice.prototype = Object.create(AlexaSkill.prototype);
FindDevice.prototype.constructor = FindDevice;
FindDevice.prototype.eventHandlers.onSessionStarted = function (sessionStartedRequest, session) {
console.log("Quote onSessionStarted requestId: " + sessionStartedRequest.requestId
+ ", sessionId: " + session.sessionId);
// any initialization logic goes here
};
FindDevice.prototype.eventHandlers.onLaunch = function (launchRequest, session, response) {
console.log("Quote onLaunch requestId: " + launchRequest.requestId + ", sessionId: " + session.sessionId);
getWelcomeResponse(response);
};
FindDevice.prototype.eventHandlers.onSessionEnded = function (sessionEndedRequest, session) {
console.log("Quote onSessionEnded requestId: " + sessionEndedRequest.requestId
+ ", sessionId: " + session.sessionId);
// any cleanup logic goes here
};
FindDevice.prototype.intentHandlers = {
// register custom intent handlers
"FindDeviceIntent": function (intent, session, response) {
determineDevice(intent, session, response);
}
};
/**
* Returns the welcome response for when a user invokes this skill.
*/
function getWelcomeResponse(response) {
// If we wanted to initialize the session to have some attributes we could add those here.
var speechText = "Welcome to the Lost Device. Which device shall I find?";
var repromptText = "<speak>Please choose a category by saying, " +
"iPhone <break time=\"0.2s\" /> " +
"Mac <break time=\"0.2s\" /> " +
"iPad <break time=\"0.2s\" /></speak>";
var speechOutput = {
speech: speechText,
type: AlexaSkill.speechOutputType.PLAIN_TEXT
};
var repromptOutput = {
speech: repromptText,
type: AlexaSkill.speechOutputType.SSML
};
response.ask(speechOutput, repromptOutput);
}
function determineDevice(intent, session, response) {
var deviceSlot = intent.slots.Device;
if (deviceSlot == "iPhone") {
deviceId = phoneId;
pingDevice(deviceId);
} else if (deviceSlot == "iPad") {
deviceId = ipadId;
pingDevice(deviceId);
} else if (deviceSlot == "Mac") {
deviceId = macId;
pingDevice(deviceId);
} else {
var speechText = "None of those are valid devices. Please try again.";
speechOutput = {
speech: speechText,
type: AlexaSkill.speechOutputType.PLAIN_TEXT
};
response.tell(speechOutput);
}
}
function pingDevice(deviceId) {
apple.sendAlert(deviceId, 'Glad you found your phone.', function(success, result){
if(success){
console.log("Alert Sent Successfully");
var speechOutput = alertSuccess;
response.tell(speechOutput);
} else {
console.log("Alert Unsuccessful");
console.log(result);
var speechOutput = alertFailed;
response.tell(speechOutput);
}
});
}
// Create the handler that responds to the Alexa Request.
exports.handler = function (event, context) {
// Create an instance of the FindDevice skill.
var findDevice = new FindDevice();
findDevice.execute(event, context);
};
这里是拉姆达错误：
{
"errorMessage": "Cannot read property 'PLAIN_TEXT' of undefined",
"errorType": "TypeError",
"stackTrace": [
"getWelcomeResponse (/var/task/index.js:87:42)",
"FindDevice.eventHandlers.onLaunch (/var/task/index.js:58:5)",
"FindDevice.LaunchRequest (/var/task/AlexaSkill.js:10:37)",
"FindDevice.AlexaSkill.execute (/var/task/AlexaSkill.js:91:24)",
"exports.handler (/var/task/index.js:137:16)"
]
}
据我所知，有一个未定义的对象在这里，但我的生活我想不通的地方代码出错了。我试图从我的意图中获取插槽，然后根据所使用的插槽字将设备更改为ping。另外，因为我对此很新颖，很多编码只是通过将所有东西拼凑在一起来完成的。我确实发现，当我将所有.PLAIN_TEXT行全部删除时，代码以lambda表示，然后在alexa技能测试区域中打开。我知道预感是如何通过的，但我无法找到关于此问题的材料。任何帮助将是太棒了！