Royale SWCs should always have a folder of JS files unless they are SWF only.
Before you dump the library.swf, did you look in the catalog.xml? It is easier to see what it thinks is in the SWC. It could be that the manifest or other list of classes is not specified in the JS compile. HTH, -Alex On 9/11/18, 8:49 AM, "piotrz" <pio...@apache.org> wrote: Hi Alex, The first part of your answer is behind me. I have checked what is inside both swcs. On the left sight of the screenshot is JS version. <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fapache-royale-development.20373.n8.nabble.com%2Ffile%2Ft1%2Fjs_swf.png&data=02%7C01%7Caharui%40adobe.com%7C433e8a0206c14a29f6de08d617fe3860%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636722777968242370&sdata=P6cfNMW8dyfFqNHlIrvlpLYbRdDsK5KLzz7QuLADZKQ%3D&reserved=0> Interesting thing is that in both cases I have folder with JS files. I have definitely my swcs in library-path, because SWF version is working fine. I will try to examine library.swf and get back to you. Thanks, Piotr -- Sent from: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fapache-royale-development.20373.n8.nabble.com%2F&data=02%7C01%7Caharui%40adobe.com%7C433e8a0206c14a29f6de08d617fe3860%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636722777968242370&sdata=mx1qBKZd81wM0BuMJgh7dWAr3dc%2FdGQLuKHphalMqRo%3D&reserved=0