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Mixer not supported: ALSA [plughw:0,1], version 4.4.21+
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java.lang.IllegalArgumentException: Mixer not supported: null	at javax.sound.sampled.AudioSystem.getMixer(Unknown Source)	at net.sf.freecol.client.gui.sound.SoundPlayer.(SoundPlayer.java:147)	at net.sf.freecol.client.FreeColClient.startGUI(FreeColClient.java:401)	at net.sf.freecol.client.FreeColClient.access$000(FreeColClient.java:91)	at net.sf.freecol.client.FreeColClient$1.run(FreeColClient.java:312)	at java.awt.event.InvocationEvent.dispatch(Unknown Source)	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)	at java.awt.EventQueue.access$000(Unknown Source)	at java.awt.EventQueue$1.run(Unknown Source)	at java.awt.EventQueue$1.run(Unknown Source)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)	at java.awt.EventQueue.dispatchEvent(Unknown Source)	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)	at java.awt.EventDispatchThread.run(Unknown Source)