I am doing the following module in Trailhead- Build a Conference Management App > Create a Lightning component

I am getting the error - API Name undefined is invalid, did you mean "Speaker__c?"

I have tried pasting the exact codes but it still failed -


<aura:component implements="flexipage:availableForRecordHome,force:appHostable,lightning:actionOverride,force:hasRecordId">
<aura:attribute name="speaker" type="Speaker__c" />
<aura:attribute name="recordId" type="String" />
<div class="slds-p-bottom_large slds-p-left_large" style="width:600px">
    <lightning:recordEditForm aura:id="recordViewForm"
        <lightning:messages />
        <lightning:inputField fieldName="First_Name__c" />
        <lightning:inputField fieldName="Last_Name__c" />
        <lightning:inputField fieldName="Email__c" />
        <lightning:inputField fieldName="Bio__c" />
        <lightning:button aura:id="submit" type="submit" label="Update Speaker" class="slds-m-top_medium" />


onSuccess: function(component,event,helper){
    //Show Success message on upsertion of record
    var resultToast = $A.get("e.force:showToast");
                        "title": "Success!",
                        "message": "Record Saved Successfully"
    //Navigate to sObject home page
    var homeEvent = $A.get("e.force:navigateToObjectHome");
        "scope": "Speaker__c"

I have passed the challenge but the form just does not work (it does not even load).

Please help me understand what's wrong.

  • 1
    do you have a object called Speaker__c?
    – m Peixoto
    Commented Apr 9, 2019 at 15:10
  • maybe the error is here -> recordTypeId="{!v.speaker}"
    – m Peixoto
    Commented Apr 9, 2019 at 15:12
  • First, check if the object Speaker__c has a Record Type created. If not, I you should create. After, change the line recordTypeId="{!v.speaker}" by recordTypeId="{!v.RecordTypeID}". It is my guess. Another option is delete this line....
    – m Peixoto
    Commented Apr 9, 2019 at 15:22
  • @mPeixoto I do have the object Speaker__c. Also, I did remove the line itself but still the error remains the same.
    – Vikash
    Commented Apr 9, 2019 at 17:02
  • When/Where are you getting this error?
    – Jayant Das
    Commented Apr 9, 2019 at 17:57

1 Answer 1


The trailhead was changed in Spring '19 to "Create an Aura Component".

Not loading components is usually due to the browsers tracker or cookie settings, or plugins/add-ons or proxies that protect your privacy. For me Firefox tracker blocking shield in the address bar needed to be turned off.

Salesforce Help page "Troubleshoot issues with Mozilla Firefox"


I got the successful toast message, but for navigating to the object home I got the error on homeEvent

in Chrome:

"Uncaught Action failed: c:SpeakerForm$controller$onSuccess [Cannot read property 'setParams' of undefined]"

in Firefox:

TypeError: Action failed: c:SpeakerForm$controller$onSuccess [homeEvent is undefined]

It turns out somehow the homeEvent definition you had was correct and in the challenge this was changed to "standard_objectPage". which leads to the same error message.

var homeEvent = $A.get("e.force:navigateToObjectHome");


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .