Hi The MXML looks fine, but of course that will be pulling in some of your other AS classes which is where the problem might lie.
I think you'll need to continue the divide-and-conquer approach by trying it without other bits e.g. take out the FilterAndMainContainer object, script back the attributes for the ResizableTitleWindow, etc. If the below XML still fails then I'd suggest the error is within your ResizableTitleWindow ActionScript class: <?xml version="1.0" ?> <uipanel:ResizableTitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:filter="com.infogix.iitap.component.flexuiplatform.controls.filter.*"> </uipanel:ResizableTitleWindow> Probably you'll find/fix the issue before we manage to get any useful verbose compiler output set up...! thanks Andrew -----Original Message----- From: chembali [mailto:chemb...@hotmail.com] Sent: 29 June 2018 05:43 To: dev@royale.apache.org Subject: [EXTERNAL] RE: Migrating Enterprise Flex Application I narrowed the compiler hanging issue down to one mxml file in my source. It is hanging during the compilation of the below mxml file. I removed this file from the source and the compiling seems to be fine. Here is the mxml file for your reference. I couldn't notice anything that could cause the compile to hang. Please share your thoughts.