I am very new to Flex but have managed to publish a map to the Amazon Cloud and access the map layers through the Application Builder in ESRI Flex. The Map, Widget and Layout tabs work fine and I am able to see my layers in the Map Extent section of the Maps tab. However, when I get to the Design and Preview tabs, I get the following error: Error: Invalid URL Code: 400 I find this very suspicious since I have already seen a preview of my layers in the Maps tab so I have some confidence that my url is correct. Any help is appreciated. Eric
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