What are some good resources for learning Java development for building AEM components? I currently am a front end developer, but need to learn the backend. I’m looking at classes on Experience League, Udemy, etc., but am trying to identify what Java courses I could take that are relevant to AEM com...

Thanks for the input. Do I also need to create a model, such as testComponentModel.java? 

Compared to most questions here, this is very basic, but I can't seem to find a resource with the information. In my cq:dialog for a new component that I'm building, I'm using the sling:resourceType, "granite/ui/components/foundation/form/numberfield" to capture a number from content managers, which...

I just discovered that my crx-quickstart/bin folder is gone, so now I can't start my local instance. 

Thanks for your reply. I tried your suggestion and when I accessed it in Incognito mode, I got the same result. Any other suggestions? 

I'm trying to modify the dialog (content.xml) for our navigation Experience Fragment, but I made a change and reverted it, but get this error now:Cannot serve request to in /libs/granite/ui/components/coral/foundation/form/field/field.jspException:java.lang.NullPointerException at com.adobe.granite...