So I have gotten TypeErrors many times before when playing with actions-on-google and dialogflow, however, this property is from what I can understand not in my code but rather in "DialogflowConversation". Therefore i can't understand what possibly could be undefined...
Here is the rest of the error message:
"TypeError: Cannot read property 'simpleResponse' of undefined
at DialogflowConversation.response (/user_code/node_modules/actions-on-google/dist/service/actionssdk/conversation/conversation.js:261:25)
at DialogflowConversation.serialize (/user_code/node_modules/actions-on-google/dist/service/dialogflow/conv.js:159:129)
at Function.<anonymous> (/user_code/node_modules/actions-on-google/dist/service/dialogflow/dialogflow.js:157:
at next (native)
at fulfilled (/user_code/node_modules/actions-on-google/dist/service/dialogflow/dialogflow.js:19:58)
at process._tickDomainCallback (internal/process/next_tick.js:135:7)"