TypeError: Cannot read property 'stack' of undefined for Action on google node module

[Siva-Alexa]

I am using Firebase cloud functions as webhook for my action-on-google dialogflow fulfilment.

I am showing only part of My index.js file as below

process.env.DEBUG = 'actions-on-google:*';

var requestcall = require('request');
var date = require('date-and-time');
var promise = require('promise');
var AmazonDateParser = require('amazon-date-parser');
var moment = require('moment-timezone');

var accountnum;
var accessToken;
var timePeriod;
var acctnums =[];

const OUT_CONTEXT = 'output_context';
const ACCOUNT_ARG = 'info';
const ACCOUNT_NUM = 'myAccountNum';
const AccountNums = 'AccountNums';
const CURRENCY_SYMBOL = 'CurrencySymbol';
const TIME_ZONE = 'TimeZone';
const STATS_ARG = 'nextStatsData';

const {dialogflow} = require('actions-on-google');
const functions = require('firebase-functions');

const {
  SimpleResponse,
  BasicCard,
  Image,
  Suggestions,
  Button
} = require('actions-on-google');

const app = dialogflow(

{debug: true,clientId: 'xxxxxxxxxxx.apps.googleusercontent.com'});

app.intent('Default Welcome Intent', (conv) => {

  console.log('Request headers: ' + JSON.stringify(conv.headers));
  console.log('Request body: ' + JSON.stringify(conv.body));
  accessToken =conv.body.originalDetectIntentRequest.payload.user.accessToken;
   console.log('accessToken: ' + accessToken);

  if (accessToken !== null) {

      return  getaccountDetails(conv).then((entity)=>{
      return getMessageFromAccount(entity,conv);
      });

  }
  else{

     return conv.close(new SignIn('To get your account details'));

  }

  });
exports.stats = functions.https.onRequest(app);

My package.json file is as below

  "description": "Cloud Functions for Firebase",
  "scripts": {
    "serve": "firebase serve --only functions",
    "shell": "firebase experimental:functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  },
  "dependencies": {
    "actions-on-google": "^2.12.0",
    "amazon-date-parser": "^0.1.5",
    "date-and-time": "^0.6.3",
    "dialogflow": "^0.6.0",
    "firebase-admin": "^6.5.1",
    "firebase-functions": "^3.9.0",
    "moment-timezone": "^0.5.31",
    "node-pre-gyp": "^0.15.0",
    "promise": "^8.1.0",
    "request": "^2.88.2"
  },
  "engines": {
    "node": "10"
  },
  "devDependencies": {
    "firebase-functions-test": "^0.2.1"
  },
  "private": true,
  "version": "1.0.0",
  "main": "index.js",
  "author": "",
  "license": "ISC"
}

I am getting the following error while testing my actions-on-google

    at standard.then.catch (/workspace/node_modules/actions-on-google/dist/framework/express.js:37:32)
    at process._tickCallback (internal/process/next_tick.js:68:7)

Error is not in my index.js. The error is in actions-on-google npm modules library at express.js.

I deleted my node modules and installed again and rebuild the code. still same error coming.

Please help me in solving this issue.

[Fleker]

Can you provide the full stacktrace? The snippet provided doesn't include an error message. When does this error happen? Before deploying to Firebase?

[Siva-Alexa]

Hi @Fleker the error occurs for my first call only. When i start Talk to my action..then account linking happening successfully and after that i am getting error saying that your action is not responding. Then i went to firebase to check the logs and i got this error log. That is the full stack trace from firebase logs

TypeError: Cannot read property 'stack' of undefined
    at standard.then.catch (/workspace/node_modules/actions-on-google/dist/framework/express.js:37:32)
    at process._tickCallback (internal/process/next_tick.js:68:7) 

Previously my action was working fine,recently i changed my firebase function node js version to 10 and again i updated all my node modules to the latest which you can see in pacakge.json.

Its strange for me to, i don't understand where the error is coming, but as per the log it is happening inside actions-on-google node module at express.js.

[Fleker]

This line is throwing an error in your code, but haven't determined why.

[Siva-Alexa]

So what is the solution for this @Fleker. Please guide me as my action is deployed and people will be using it.

[Fleker]

I'm investigating this at the moment

[Fleker]

I am unable to reproduce the error you're facing even with replicating your Default Welcome Intent. Are there any other logs like the request header/body when this happens, which may be able to help diagnose why this may happen?

[Siva-Alexa]

Yes @Fleker i have both request header and body. Please check below for both

Request Header

{"host":"us-central1-click-and-pledge-air.cloudfunctions.net","user-agent":"Google-Dialogflow","transfer-encoding":"chunked","accept":"*/*","accept-encoding":"gzip,deflate,br","content-type":"application/json","forwarded":"for=\"66.249.84.230\";proto=https","function-execution-id":"q7lw68klo13t","x-appengine-country":"ZZ","x-appengine-default-version-hostname":"l70a2a9e459fc4366-tp.appspot.com","x-appengine-https":"on","x-appengine-request-log-id":"5f3d212500ff0d291d7ae3441e0001737e6c373061326139653435396663343336362d7470000134323231326565613265383762663265346233383062316438303765306431643a313834000100","x-appengine-timeout-ms":"599999","x-appengine-user-ip":"66.249.84.230","x-cloud-trace-context":"436f4dc10cf95d7835ba35293bee0cf4/771850088506812945;o=1","x-forwarded-for":"66.249.84.230","x-forwarded-proto":"https","connection":"close"} 

Request Body

{"responseId":"2e726734-6621-4799-a2e5-df354e83c05a-d794dba9","queryResult":{"queryText":"GOOGLE_ASSISTANT_WELCOME","action":"input.welcome","parameters":{},"allRequiredParamsPresent":true,"outputContexts":[{"name":"projects/click-and-pledge-air/agent/sessions/ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA/contexts/actions_capability_media_response_audio"},{"name":"projects/click-and-pledge-air/agent/sessions/ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA/contexts/actions_capability_audio_output"},{"name":"projects/click-and-pledge-air/agent/sessions/ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA/contexts/actions_capability_screen_output"},{"name":"projects/click-and-pledge-air/agent/sessions/ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA/contexts/actions_capability_account_linking"},{"name":"projects/click-and-pledge-air/agent/sessions/ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA/contexts/google_assistant_input_type_voice"},{"name":"projects/click-and-pledge-air/agent/sessions/ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA/contexts/google_assistant_welcome"},{"name":"projects/click-and-pledge-air/agent/sessions/ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA/contexts/__system_counters__","parameters":{"no-input":0,"no-match":0}}],"intent":{"name":"projects/click-and-pledge-air/agent/intents/5e1ffcfe-48d1-4bf0-84b4-4b7506a0666c","displayName":"Default Welcome Intent"},"intentDetectionConfidence":1,"languageCode":"en"},"originalDetectIntentRequest":{"source":"google","version":"2","payload":{"user":{"accessToken":"eyJhbGciOiJSUzI1NiIsImtpZCI6IjYxMTk2Q0YzRTY5NzQ0QUE4QUUwMzgxNkE5NzRDNUZFMzg1NjBFQTkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJZUmxzOC1hWFJLcUs0RGdXcVhURl9qaFdEcWsifQ.eyJuYmYiOjE1OTc4Mzk0NDIsImV4cCI6MTU5Nzg0MzA0MiwiaXNzIjoiaHR0cHM6Ly9hYWFzLmNsb3VkLmNsaWNrYW5kcGxlZGdlLmNvbS9pZHNlcnZlci8iLCJhdWQiOiJodHRwczovL2FhYXMuY2xvdWQuY2xpY2thbmRwbGVkZ2UuY29tL2lkc2VydmVyL3Jlc291cmNlcyIsImNsaWVudF9pZCI6Ikdvb2dsZUFzc2lzdGFudCIsInN1YiI6InBhbGxlLnNpdmFzYW5rYXJyZWRkeUBjbGlja2FuZHBsZWRnZS5jb20iLCJhdXRoX3RpbWUiOjE1OTc4Mzk0MzgsImlkcCI6ImxvY2FsIiwic2NvcGUiOlsib3BlbmlkIiwicHJvZmlsZSIsIm9mZmxpbmVfYWNjZXNzIl0sImFtciI6WyJwd2QiXX0.d_sCxPmfGIp-XBkCiepsXaSJL5SCVOok2sHeFETzGPgkQHlaVb2pik3owJTcEBSUYSeTirYfvXrC8cL58duGI39GAz4SbpiyRaym5k2IhJJ6hkOzS2Xmss6PB6AdSEd6MZ8R-HBBrRkSfeaynnJlHVtY41dpb6kt8V-dNLZ2-jj6qshrOiWkVJ7s-jkIebyQAtXl70jEuCd1GU_vjxWU2r2rVgFFOR0uwSU29nzI4T_H1uPEOv6YgcTVeMrol7hAhun8aSYGCwNbba5pKPn4lYlz_PWUdidQFvudkPiO8BSKQD24Z1oEakb4cgjwO9OwTSjVTeFzNgubkuy5fE-m4A","locale":"en-US","userVerificationStatus":"VERIFIED"},"conversation":{"conversationId":"ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA","type":"NEW"},"inputs":[{"intent":"actions.intent.MAIN","rawInputs":[{"inputType":"VOICE","query":"Talk to Click & Pledge"}]}],"surface":{"capabilities":[{"name":"actions.capability.MEDIA_RESPONSE_AUDIO"},{"name":"actions.capability.AUDIO_OUTPUT"},{"name":"actions.capability.SCREEN_OUTPUT"},{"name":"actions.capability.ACCOUNT_LINKING"}]},"isInSandbox":true,"availableSurfaces":[{"capabilities":[{"name":"actions.capability.AUDIO_OUTPUT"},{"name":"actions.capability.SCREEN_OUTPUT"},{"name":"actions.capability.WEB_BROWSER"}]}],"requestType":"SIMULATOR"}},"session":"projects/click-and-pledge-air/agent/sessions/ABwppHF8prJHi40mkHEvjyMO0UnXA1kZfAdL8k8YFYeHJYHk-vr-hNlYsyltJszRb5vM6GmT7_sW9UTIfJqkPxGEaBA"} 

Hope this will help you solve the issue.

[Fleker]

I am not encountering this error when trying this on my own example project.

[Siva-Alexa]

@Fleker can you drop your mail, i will send you my whole code zip folder so that you can check that. if you have problem sharing your mail publicly please reply to my mail i will forward you.

my mail id : sivasankar.android@gmail.com.