[SalesForce] Unable to display CampingListItem component

I'm a bit lost on how to troubleshoot this issue. I've completed the Attributes and Expressions trailhead, ie passed the challenged however I'm unable to display the component, campingListItem, in my HarnessApp. I get this error:

This page has an error. You might just need to refresh it. Aura.loadComponent(): Failed to initialize application. An internal server error has occurred Error ID: 33374234-34842 (-1501584897)

…. code removed

When I remove the <c:campingListItem /> tag things load just fine. It doesn't matter where I put this component, here or in the campingList component the same error comes up.

So I'm at a bit lost on what's going on, and why I'm unable to load this component.

code of the component, CampingListItem: 

<aura:attribute name="item" type="Camping_Item__c" required="true"/>

... code removed per forum guidelines

</aura:component>

Best Answer

It looks like you specified a required attribute but you are not providing it in your markup:

You said you are declaring your component like this:

<c:campingListItem />

But the component has a required attribute which you are not defining above. You should have something like 

<c:campingListItem item="{!v.item}" />

Where v.item is of type Camping_Item__c.

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