Thanks @Bhuwan_B, I've followed the steps in this document but it is not fixed this 504 error. 

Hi guys I need help from you facing 504 Gateway Time-out error while publishing the home page I can see this 504 error under network tab from the /bin/replicate.   

I am facing one issue in AEm 6.4 touch ui with event listener.When I open the page properties dialog and after configuring the field values I have to validate them if any field value is invalid I have to dispaly error message and not allow them to submit dialog before validating.I've to trigger thes...

This is not working for submit dialog of page properties in 6.4.

I am also having the same issue. I am trying to add minimum, maximum limit configuration extension to Coral 3 Multifield - 6.4 but it is not working.

Hi Amangoyal,Add a boolean property like below :properties :  readOnly type :Boolean value : true