Make sure that either you are pointing your compiler at the services-config.xml which defines those destinations or you need to define a channel set on the client and set the channelSet property on your service.
You can see what destinations are getting compiled into your app via the static variable: flex.messaging.config.ServerConfig.xml. That should be a subset of the info from services-config.xml if you are compiling stuff in. Jeff ________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Geoffrey Sent: Thursday, February 14, 2008 11:28 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] BlazeDS - Unknown destination error I'm trying to get BlazeDS working with our existing Flex application. When the application starts and tried to subscribe to a publisher, I get the following error: [MessagingError message='Unknown destination 'userTopic'.'] at mx.messaging.config::ServerConfig$/getChannelSet() [C:\dev\enterprise_bali\frameworks\mx\messaging\config\ServerConfig.as:2 24] ... I have the topic defined in my messaging-config.xml file like this: <destination id="userTopic"></destination> Not really sure what the deal is. I've converted our app to use the Flex 3 plugin for Eclipse, and that seems OK (not sure if I really needed to do this). The only thing I see is that the properties of the main flex project say "Project is being compiled with Flex 3.0, but server has Flex 2.0.1" in the Flex Compiler section. Ummm, say what? Any help would be appreciated.