Hi, 
I am trying to finish Handle Actions with Controllers section iin Lightning components trailhead. My code works as asked in the challenge.
But I still get this error:
Challenge Not yet complete... here's what's wrong: 
The campingListItem Lightning Component doesn't contain a button or its attributes are not set correctly when clicked.

<aura:component >
    <aura:attribute name='item' type='Camping_Item__c' required='true' default="{Name:'Torch', Price__c: 10, Quantity__c: 1, Packed__c: false}"></aura:attribute>
    <aura:attribute name='disabled' type='Boolean'></aura:attribute>
    
    <ui:outputText value='{!v.item.Name}'></ui:outputText>
    <ui:outputCheckbox value="{!v.item.Packed__c}"></ui:outputCheckbox>
    <ui:outputCurrency value="{!v.item.Price__c}"></ui:outputCurrency>
    <ui:outputNumber value="{!v.item.Quantity__c}"></ui:outputNumber>
    
    <ui:button press='{!c.packItem}' disabled='{!v.disabled}' label='Packed!'></ui:button>
</aura:component>

({
    packItem : function(component, event, helper) {
        var item = component.get('v.item');
        component.set('v.item.Packed__c', true);
        var btnPackItem = event.getSource();
        btnPackItem.set('v.disabled', true);
    }
})

LockerService was enabled as a critical update in my DE org. I am trying to create a home page showing multiple charts using Lightning component and Highcharts as charting library.
The charts are rendered fine if I deactivate the LockerService. I get this error if LockerService is active and I try to render highcharts chart:
Something has gone wrong.

Error in $A.getCallback() [NotFoundError: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.] Failing descriptor: {markup://c:AHM_Home1}. Please try again.
I am using Highcharts version 4.2.3

Code sample: https://jsfiddle.net/ashishn/g81q2vtx/

Hi, 
I am trying to finish Handle Actions with Controllers section iin Lightning components trailhead. My code works as asked in the challenge.
But I still get this error:
Challenge Not yet complete... here's what's wrong: 
The campingListItem Lightning Component doesn't contain a button or its attributes are not set correctly when clicked.

<aura:component >
    <aura:attribute name='item' type='Camping_Item__c' required='true' default="{Name:'Torch', Price__c: 10, Quantity__c: 1, Packed__c: false}"></aura:attribute>
    <aura:attribute name='disabled' type='Boolean'></aura:attribute>
    
    <ui:outputText value='{!v.item.Name}'></ui:outputText>
    <ui:outputCheckbox value="{!v.item.Packed__c}"></ui:outputCheckbox>
    <ui:outputCurrency value="{!v.item.Price__c}"></ui:outputCurrency>
    <ui:outputNumber value="{!v.item.Quantity__c}"></ui:outputNumber>
    
    <ui:button press='{!c.packItem}' disabled='{!v.disabled}' label='Packed!'></ui:button>
</aura:component>

({
    packItem : function(component, event, helper) {
        var item = component.get('v.item');
        component.set('v.item.Packed__c', true);
        var btnPackItem = event.getSource();
        btnPackItem.set('v.disabled', true);
    }
})

LockerService was enabled as a critical update in my DE org. I am trying to create a home page showing multiple charts using Lightning component and Highcharts as charting library.
The charts are rendered fine if I deactivate the LockerService. I get this error if LockerService is active and I try to render highcharts chart:
Something has gone wrong.

Error in $A.getCallback() [NotFoundError: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.] Failing descriptor: {markup://c:AHM_Home1}. Please try again.
I am using Highcharts version 4.2.3

Code sample: https://jsfiddle.net/ashishn/g81q2vtx/