The problem is due to the ACS-Commons package. AEM refers to the parsys component, so I solved the problem by removing the ACS-Commons package.

I added a parsys component to a page. When in design mode I open list of allowed components and I checked General then in Edit mode I click on parsys plus sign, I get this error:An error has occured during execution of the selected action: Granite.author.util.resolveProperty is not a function -> Typ...

I'm learning to use AEM. I wanted to understand how it works. What I'm doing isn't a true webpage.

I have solved it. For anyone who comes across the same problem, this is the solution:<cq:text escapeXml="true" placeholder="<%= Placeholder.getDefaultPlaceholder(slingRequest, "Click here to edit component", null)%>"/>

Ok, but I'm using JSP for this component, not HTL. Is there a way to do it in JSP?Thanks for reply

Hi guys!I have a component whose rendering comes from a JSP script. In Sightly I show the component placeholder with this code:<sly data-sly-test="${wcmmode.edit}">     <div data-emptytext="Click here to edit this component" class="cq-placeholder"></div></sly>How do I get the same for JSP?Thanks adv...