【发布时间】：2019-04-24 09:17:22
【问题描述】：
当我尝试测试我的基本技能（我正在尝试学习如何创建它们）时，我不断收到错误消息。 这是日志中的错误：
2018-11-21T16:10:55.759Z 06a36441-eda8-11e8-a421-f996bf66c592 意外异常'TypeError：无法读取属性'值' 未定义'：
TypeError：无法读取未定义的属性“值” 在 emitNone 上的 Object.getSuggestion (/var/task/index.js:31:54) (events.js:86:13) 在 AlexaRequestEmitter.emit (events.js:185:7) 在 AlexaRequestEmitter.EmitEvent （/var/task/node_modules/alexa-sdk/lib/alexa.js:216:10）在 AlexaRequestEmitter.ValidateRequest (/var/task/node_modules/alexa-sdk/lib/alexa.js:181:23) 在 AlexaRequestEmitter.HandleLambdaEvent （/var/task/node_modules/alexa-sdk/lib/alexa.js:126:25）在 AlexaRequestEmitter.value (/var/task/node_modules/alexa-sdk/lib/alexa.js:100:31)
在exports.handler (/var/task/index.js:52:9)
我该如何解决这个问题？
这是我的代码：
var Alexa = require('alexa-sdk');
const APP_ID = 'amzn1.ask.skill.ab07421a-0a92-4c2b-b3bd-998e14286xxx';
const skillData = [
{
city: "Austin",
suggestion: "Austin has some of the most outstanding people."
},
{
city: "San Antonio",
suggestion: "San Antonio has some of the most outstanding people."
},
{
city: "Dallas",
suggestion: "The Dallas metroplex is one of the hottest places."
}
];
var number = 0;
while(number<3){
var handlers = {
'LaunchRequest': function () {
this.emit(':ask', 'Tell me the name of the major city you are closest to'
},
'Unhandled': function () {
this.emit(':ask', 'Try saying a city name like Austin, San Antonio, or Dallas');
},
'getSuggestion': function() {
var city = this.event.request.intent.slots.City.value;
this.emit(':ask', getSuggestion(skillData,'city', city.toUpperCase()).suggestion + '. Give me another city and I\'ll hook you up with the best peeps.');
},
'AMAZON.HelpIntent': function () {
this.emit(':ask', "What can I help you with?", "How can I help?");
},
'AMAZON.CancelIntent': function () {
this.emit(':tell', "Okay!");
},
'AMAZON.StopIntent': function () {
this.emit(':tell', "Goodbye!");
},
};
number = number+1;
}
exports.handler = function(event, context, callback){
var alexa = Alexa.handler(event, context);
alexa.appId = APP_ID;
alexa.registerHandlers(handlers);
alexa.execute();
};
function getSuggestion(arr, propName, cityName) {
for (var i=0; i < arr.length; i++) {
if (arr[i][propName] == cityName) {
return arr[i];
}
}
}
更新
我已按照下面的建议进行了一些更改，但是，在初始响应后我仍然收到错误消息。
"errorMessage": "Cannot read property 'city' of undefined"
请查看我的新代码并帮助我解决这个问题：
var Alexa = require('alexa-sdk');
const APP_ID = 'amzn1.ask.skill.ab07421a-0a92-4c2b-b3bd-998e14286xxx';
const skillData = [
{
city: 'Austin',
suggestion: "Austin is blahblahblahblahlshflashdfasldfha blah."
},
{
city: 'San Antonio',
suggestion: "San Antonio has blahblahblahblahlshflashdfasldfha blah."
},
{
city: 'Dallas',
suggestion: "The Dallas metroplex is one of the hottest blahblahblahbla blahblahblahblahblahblah."
}
];
var number = 0;
while(number<3){
var handlers = {
'LaunchRequest': function () {
this.emit(':ask', 'Tell me the name of the major city you are closest to!', 'Which major city are you closest to?');
},
'Unhandled': function () {
this.emit(':ask', "Try saying a city name like Austin, San Antonio, or Dallas");
},
'getSuggestion': function() {
var city = this.event.request.intent.slots.city.value;
this.emit(':ask', getSuggestion(skillData,'city', city.toUpperCase()).suggestion + '. Give me another city and I\'ll hook you up with the best peeps.');
},
'AMAZON.HelpIntent': function () {
this.emit(':ask', "What can I help you with?", "How can I help?");
},
'AMAZON.CancelIntent': function () {
this.emit(':tell', "Okay!");
},
'AMAZON.StopIntent': function () {
this.emit(':tell', "Goodbye!");
},
};
number = number+1;
}
exports.handler = function(event, context, callback){
var alexa = Alexa.handler(event, context);
alexa.appId = APP_ID;
alexa.registerHandlers(handlers);
alexa.execute();
};
function getSuggestion(arr, propName, cityName) {
for (var i=0; i < arr.length; i++) {
var prop = arr[i][propName];
prop = prop.toUpperCase();
if (prop == cityName) {
return arr[i];
}
}
}
更新 #2
在尝试了很多不同的事情之后，我在 bal Simpson 的帮助下获得了跑步的技能！
但是，当用户说出城市名称时，该技能仍然会出错。我的交互模型一定有错误，如下：
{
"interactionModel": {
"languageModel": {
"invocationName": "city picker",
"intents": [
{
"name": "AMAZON.FallbackIntent",
"samples": []
},
{
"name": "AMAZON.CancelIntent",
"samples": []
},
{
"name": "AMAZON.HelpIntent",
"samples": []
},
{
"name": "AMAZON.StopIntent",
"samples": [
"stop"
]
},
{
"name": "AMAZON.NavigateHomeIntent",
"samples": []
},
{
"name": "getSuggestion",
"slots": [],
"samples": [
"san antonio",
"dallas",
"austin"
]
}
],
"types": []
}
}
}
靠近！！
作为最后的努力：
这是我在 Lambda 中的 index.js。有人介意看这个吗？
const LaunchRequestHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === "LaunchRequest";
},
handle(handlerInput) {
console.log("LaunchRequestHandler");
let speechText = 'Lets get you into your new home. Tell me the name of the major city you are closest to!';
let prompt = 'Which major city are you closest to?';
return handlerInput.responseBuilder
.speak(speechText)
.reprompt(prompt)
.getResponse();
}
};
const GetSuggestionIntentHandler = {
canHandle(handlerInput) {
return (
handlerInput.requestEnvelope.request.type === "IntentRequest" &&
handlerInput.requestEnvelope.request.intent.name === "getSuggestion"
);
},
handle(handlerInput) {
let intent = handlerInput.requestEnvelope.request.intent;
let city = intent.slot.city.value;
let suggestion = getSuggestion(skillData,'city', city.toUpperCase()).suggestion;
return handlerInput.responseBuilder
.speak(suggestion)
.reprompt('prompt')
.getResponse();
}
};
const HelpIntentHandler = {
canHandle(handlerInput) {
return (
handlerInput.requestEnvelope.request.type === "IntentRequest" &&
handlerInput.requestEnvelope.request.intent.name === "AMAZON.HelpIntent"
);
},
handle(handlerInput) {
const speechText = "Try saying a city name like Austin, San Antonio, or Dallas";
const promptText = "How can I help?";
return handlerInput.responseBuilder
.speak(speechText)
.reprompt(promptText)
// .withSimpleCard("City Details", speechText)
.getResponse();
}
};
const CancelAndStopIntentHandler = {
canHandle(handlerInput) {
return (
handlerInput.requestEnvelope.request.type === "IntentRequest" &&
(handlerInput.requestEnvelope.request.intent.name ===
"AMAZON.CancelIntent" ||
handlerInput.requestEnvelope.request.intent.name ===
"AMAZON.StopIntent" ||
handlerInput.requestEnvelope.request.intent.name ===
"AMAZON.PauseIntent")
);
},
handle(handlerInput) {
const speechText = `Seeya later!`;
return (
handlerInput.responseBuilder
.speak(speechText)
.withShouldEndSession(true)
.getResponse()
);
}
};
const SessionEndedRequestHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'SessionEndedRequest';
},
handle(handlerInput) {
console.log(`Session ended with reason: ${handlerInput.requestEnvelope.request.reason}`);
return handlerInput.responseBuilder.getResponse();
},
};
const ErrorHandler = {
canHandle() {
return true;
},
handle(handlerInput, error) {
console.log(`Error handled: ${error.message}`);
return handlerInput.responseBuilder
.speak('Sorry, I can\'t understand the command. Try saying a city name like Austin, San Antonio, or Dallas')
.reprompt('Try saying a city name like Austin, San Antonio, or Dallas')
.getResponse();
},
};
const SystemExceptionHandler = {
canHandle(handlerInput) {
return (
handlerInput.requestEnvelope.request.type ===
"System.ExceptionEncountered"
);
},
handle(handlerInput) {
console.log(
`System exception encountered: ${
handlerInput.requestEnvelope.request.reason
}`
);
}
};
const skillBuilder = Alexa.SkillBuilders.custom();
exports.handler = skillBuilder
.addRequestHandlers(
LaunchRequestHandler,
GetSuggestionIntentHandler,
CancelAndStopIntentHandler,
HelpIntentHandler,
SystemExceptionHandler,
SessionEndedRequestHandler
)
.addErrorHandlers(ErrorHandler)
.lambda();
function getSuggestion(arr, propName, cityName) {
for (var i=0; i < arr.length; i++) {
var prop = arr[i][propName];
prop = prop.toUpperCase();
if (prop == cityName) {
return arr[i];
}
}
}这是我在开发者门户中的交互模型：
{
"interactionModel": {
"languageModel": {
"invocationName": "city picker",
"intents": [
{
"name": "AMAZON.FallbackIntent",
"samples": []
},
{
"name": "AMAZON.CancelIntent",
"samples": []
},
{
"name": "AMAZON.HelpIntent",
"samples": []
},
{
"name": "AMAZON.StopIntent",
"samples": [
"stop"
]
},
{
"name": "AMAZON.NavigateHomeIntent",
"samples": []
},
{
"name": "getSuggestion",
"slots": [
{
"name": "city",
"type": "CITY_NAMES"
}
],
"samples": [
"{city}"
]
}
],
"types": [
{
"name": "CITY_NAMES",
"values": [
{
"name": {
"value": "dallas"
}
},
{
"name": {
"value": "san antonio"
}
},
{
"name": {
"value": "austin"
}
}
]
}
]
}
}
}【问题讨论】：
-
发布您对 getSuggestion Intent 的回复
-
请向您的 getSuggestion Intent 发送请求或回复。
-
当对已经有答案的问题进行更改时，值得养成问自己更改是否会使这些答案无效的习惯。在这种情况下，更改是实质性的，因此最好添加更新，这样问题的新读者就不会从一开始就阅读“更新”。 （出于相同的原因，一些变化是如此剧烈，以至于它们作为一个新问题更好）。黄金法则是确保答案仍然与上面的问题相关。
-
你是对的！这完全是我的错。感谢您清理它！
标签： node.js aws-lambda alexa alexa-skills-kit