Error while instanciating the plugin :
Caused by : java.lang.ClassNotFoundException: icy.gui.component.ColorChooserButton$ColorChangeListener
java.lang.NoClassDefFoundError: icy/gui/component/ColorChooserButton$ColorChangeListener
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at icy.plugin.PluginLauncher.launch(PluginLauncher.java:79)
at icy.gui.menu.MainRibbon$2.actionPerformed(MainRibbon.java:177)
at org.pushingpixels.flamingo.api.common.AbstractCommandButton.fireActionPerformed(AbstractCommandButton.java:614)
at org.pushingpixels.flamingo.api.common.AbstractCommandButton$ActionHandler.actionPerformed(AbstractCommandButton.java:566)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at org.pushingpixels.flamingo.api.common.model.ActionRepeatableButtonModel.setPressed(ActionRepeatableButtonModel.java:123)
at org.pushingpixels.flamingo.internal.ui.common.BasicCommandButtonListener.mouseReleased(BasicCommandButtonListener.java:147)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(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.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.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.Ev