I always get the error when try the chalengle #10.

Challenge Not yet complete... here's what's wrong: 
The Lightning component named TrailheaDX must open a link to https://developer.salesforce.com/trailheadx/, must open in a new window (using the target attribute of ui:outputurl), and must be included in the Sales app.



Could anyone help to point out what wrong? Here is what I did:
1. Case:
- Create an Action name UpsellCrosssellOpportunity with call Lightning Component CreateOppty
- Add action UpsellCrosssellOpportunity to Case layout
2. Report
- Create report with type REPORT: CAMPAIGNS WITH INFLUENCED OPPORTUNITIES and the name is Campaign Influence Lightning 
- Add filters: Show Me = All campaigns, Campaign Name = "", Campaign ID = ""
- ID of the report is 00O7F000009u2WvUAI
3. Campaign
- Create a Custom Link name View Lightning Campaign Influence Report with URL /lightning/r/Report/00O7F000009u2WvUAI/view?=&fv0={!Campaign.Name}&fv1={!Campaign.Id}
- Add the custom link to Campaign layout
4. TrailheaDX component

<aura:component implements="flexipage:availableForAllPageTypes" access="global" >
    <ui:outputurl aura:id="TrailheaDX" value="https://developer.salesforce.com/trailheadx/" label="TrailheaDX Registration" target="_blank" />
</aura:component>

5. Add TrailheadDX component to Utility of the Sale app (lightning)

Thanks and best regards,
An Nguyen