Cannot read property 'type' of undefined error coming in log

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newuser-64a41272-f9be-4eda-8d84-71a5b807515c asked · Jan 10, 2019 at 05:37 AM

Cannot read property 'type' of undefined error coming in log

Hi there,

I am creating my first custom alexa skill.Kindly help me in the same.I have been getting this error every time. The intent response is generated but i am getting this error in logs.I really need help.KIndly help me to debug.

alexa skills kit lambda intents aws launch

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Rokas · Jan 10, 2019 at 08:05 AM

Share some code that does it. It seems that you are trying to read property 'type' which doesn't exist. Without seeing the code it is impossible to help you.

-2 ·

Answer 1 · 2019-01-10T11:11:00Z

newuser-64a41272-f9be-4eda-8d84-71a5b807515c answered · Jan 10, 2019 at 11:11 AM

hi there,

{ "errorMessage": "Cannot read property 'type' of undefined", "errorType": "TypeError", "stackTrace": [ "Object.canHandle (/var/task/index.js:6:53)", "GenericRequestMapper.<anonymous> (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:69:61)", "step (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:44:23)", "Object.next (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:25:53)", "/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:19:71", "new Promise (<anonymous>)", "__awaiter (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:15:12)", "GenericRequestMapper.getRequestHandlerChain (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:58:16)", "GenericRequestDispatcher.<anonymous> (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/GenericRequestDispatcher.js:133:60)", "step (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/GenericRequestDispatcher.js:44:23)" ] }

i am always getting this error although the response is coming sometimes.also i ma getting audio response sometimes.

snap8.png

snap9.png

snap8.png (18.7 KiB)

snap9.png (8.3 KiB)

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Answer 2 · 2019-01-10T11:11:02Z

newuser-64a41272-f9be-4eda-8d84-71a5b807515c answered · Jan 10, 2019 at 11:11 AM

{ "errorMessage": "Cannot read property 'type' of undefined", "errorType": "TypeError", "stackTrace": [ "Object.canHandle (/var/task/index.js:6:53)", "GenericRequestMapper.<anonymous> (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:69:61)", "step (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:44:23)", "Object.next (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:25:53)", "/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:19:71", "new Promise (<anonymous>)", "__awaiter (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:15:12)", "GenericRequestMapper.getRequestHandlerChain (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:58:16)", "GenericRequestDispatcher.<anonymous> (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/GenericRequestDispatcher.js:133:60)", "step (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/GenericRequestDispatcher.js:44:23)" ] }

i am always getting this error though the response is coming.

snap8.png snap9.png

snap8.png (18.7 KiB)

snap9.png (8.3 KiB)

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Answer 3 · 2019-01-10T11:11:04Z

newuser-64a41272-f9be-4eda-8d84-71a5b807515c answered · Jan 10, 2019 at 11:11 AM

Hi there,

{ "errorMessage": "Cannot read property 'type' of undefined", "errorType": "TypeError", "stackTrace": [ "Object.canHandle (/var/task/index.js:6:53)", "GenericRequestMapper.<anonymous> (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:69:61)", "step (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:44:23)", "Object.next (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:25:53)", "/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:19:71", "new Promise (<anonymous>)", "__awaiter (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:15:12)", "GenericRequestMapper.getRequestHandlerChain (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/request/mapper/GenericRequestMapper.js:58:16)", "GenericRequestDispatcher.<anonymous> (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/GenericRequestDispatcher.js:133:60)", "step (/var/task/node_modules/ask-sdk-runtime/dist/dispatcher/GenericRequestDispatcher.js:44:23)" ] }

I am always getting this error in response although my response is coming.Kindly help with this i am attaching the snaps.

snap8.png s

nap9.png

snap8.png (18.7 KiB)

snap9.png (8.3 KiB)

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Rokas · Jan 10, 2019 at 11:17 AM

Can you also post the request that is throwing this error?

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newuser-64a41272-f9be-4eda-8d84-71a5b807515c Rokas · Jan 11, 2019 at 05:19 AM

Sure..Its actually coming with every handler

snap8.png

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snap8.png (18.7 KiB)

Rokas newuser-64a41272-f9be-4eda-8d84-71a5b807515c · Jan 11, 2019 at 05:08 PM

I meant request from the console, the json that is displayed here when you invoke the skill:

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screenshot-2019-01-11-at-190559.png (188.2 KiB)

Answer 4 · 2019-01-10T15:32:03Z

milanc answered · Jan 10, 2019 at 03:32 PM

Remove the ";" character in the "return;" statements. It stop the code evaluation too early so your CheckHandler.handle function does not return a response.

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newuser-64a41272-f9be-4eda-8d84-71a5b807515c · Jan 11, 2019 at 05:22 AM

snap10.png

Even i removed the error.It gives audio only response.What should i do.And the typeerror is not solved

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snap10.png (28.5 KiB)

Answer 5 · 2019-01-17T01:48:45Z

Oliver@Amazon answered · Jan 17, 2019 at 01:48 AM

Hey there, in your snap9.png, you are doing this

handlerInput.requestEnvelope.request.type == 'Check'

You mentioned in another forum thread by you that 'Check' is the name of the intent.

Instead you should be checking for intent name as below! Check out a sample that shows this.

handlerInput.requestEnvelope.request.intent.name == 'Check'

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