Hi, Did you follow these instructions? https://github.com/apache/royale-asjs/wiki/Flash-Builder-4.7
It looks like you are trying to compile an MXML file as a low-level ActionScript project. You will want to start with a Flex Project, and convert it. The js-output-type should be "JSRoyale" if you get it configured correctly. If you plan to use the MXRoyale components you may need to set +configname=flex in the project's additional compiler options. HTH, -Alex On 4/4/19, 5:13 AM, "spiros" <[email protected]> wrote: I use the flash builder 4.7 to test a basic royale js project. When compile the project with ASJSC an error appear to console but the project seens to be compiled. The console log is : using FlashBuilder Project Files FlashBuilder settings: -source-path+=C:\DevelopmentWorkspace\FlashBuilder_Royale\CFcommunication/sr c -compiler.accessible=true -output=C:\DevelopmentWorkspace\FlashBuilder_Royale\CFcommunication/bin-debu g/CFcommunication.swf -library-path+=C:\DevelopmentWorkspace\FlashBuilder_Royale\CFcommunication/l ibs -locale en_US -js-output-type=jsc +configname=js -debug=true -fb C:\DevelopmentWorkspace\FlashBuilder_Royale\CFcommunication/src/CFcommunicat ion.mxml C:\DevelopmentWorkspace\FlashBuilder_Royale\CFcommunication\src\CFcommunicat ion.mxml(2): col: 1 Error: This tag could not be resolved to an ActionScript class. It will be ignored. <js:Application xmlns:fx="https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fns.adobe.com%2Fmxml%2F2009&data=02%7C01%7Caharui%40adobe.com%7C199b0066604a48eae16708d6b8f6fa6a%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C1%7C636899768244118864&sdata=hVKmn2YKJJjAZ3DyrjWA2fLe%2BJ43BXJUV9DdgVnX4mw%3D&reserved=0"; ^ Spiros
