Can someone help resolve the issue that I have been facing for a couple of days now. I am unable to deploy a simple unmanaged package into a developer org due to this error message that keeps appearing. I have activated Chatter etc.

​I keep getting

Challenge Not yet complete... here's what's wrong: 
The 'Top Laptop Industry' lens was not found. Please follow the requirements and ensure everything is setup correctly

I have named the Lens as step 2 - Enter D01 - Laptops Salespeople - Wall of Fame as the title AND/OR result set Top Laptop Industry

Neither seem to work. I have refresed the screen, even cleared cookies and rebooted the computer. 

Hi, I am having trouble with the "Attributes and Expressions" module from trailhead.

Here is the challenge:
Create a Lightning Component to display a single item for your packing list.

• Create a component called campingListItem that displays the name (ui:outputText) and the three custom fields using the appropriate output components.
• Add an attribute named 'item' for type Camping_Item__c.

I created an component named campingListItem and this is the code:

<aura:component >
    <aura:attribute name="item" type="<my_domain>__Camping_Item__c"/>
    
    <ui:outputText value="{!v.item.Name}"/>
    <ui:outputCheckbox value="{!v.item.<my_domain>__Packed__c}"/>
    <ui:outputCurrency  value="{!v.item.<my_domain>__Price__c}"/>
    <ui:outputNumber value="{!v.item.<my_domain>__Quantity__c}"/>
</aura:component>

The error that I am getting is: "Challenge Not yet complete... here's what's wrong: 
The packingListItem Lightning Component's attribute tag doesn't exist or its attributes are not set correctly."

With this, I tried to create another component, with the name "packingListItem", but It didn't work.

Can anyone help me?

Thanks,