4.2.M3 Modeler Error when generating classes

Hi,

I have opened a project which was created with 4.1 when I try to generate
the classes within the modeler I get the following error:

[ERROR] Error generating classes
org.apache.cayenne.di.DIRuntimeException: DI container has no binding for
key <BindingKey: org.apache.cayenne.configuration.xml.DataChannelMetaData>
at
org.apache.cayenne.di.spi.DefaultInjector.getProvider(DefaultInjector.java:158)
at
org.apache.cayenne.di.spi.DefaultInjector.getInstance(DefaultInjector.java:139)
at
org.apache.cayenne.di.spi.FieldInjectingProvider.value(FieldInjectingProvider.java:103)
at
org.apache.cayenne.di.spi.FieldInjectingProvider.injectMember(FieldInjectingProvider.java:68)
at
org.apache.cayenne.di.spi.FieldInjectingProvider.injectMembers(FieldInjectingProvider.java:59)
at
org.apache.cayenne.di.spi.FieldInjectingProvider.get(FieldInjectingProvider.java:44)
at
org.apache.cayenne.di.spi.DefaultScopeProvider.get(DefaultScopeProvider.java:50)
at
org.apache.cayenne.di.spi.DefaultInjector.getInstance(DefaultInjector.java:139)
at
org.apache.cayenne.di.spi.FieldInjectingProvider.value(FieldInjectingProvider.java:103)
at
org.apache.cayenne.di.spi.FieldInjectingProvider.injectMember(FieldInjectingProvider.java:68)
at
org.apache.cayenne.di.spi.FieldInjectingProvider.injectMembers(FieldInjectingProvider.java:59)
at
org.apache.cayenne.di.spi.FieldInjectingProvider.get(FieldInjectingProvider.java:44)
at
org.apache.cayenne.di.spi.DefaultScopeProvider.get(DefaultScopeProvider.java:50)
at
org.apache.cayenne.di.spi.DefaultInjector.getInstance(DefaultInjector.java:134)
at
org.apache.cayenne.modeler.editor.cgen.domain.CgenTabController.runGenerators(CgenTabController.java:71)
at
org.apache.cayenne.modeler.editor.GeneratorsTab.lambda$new$0(GeneratorsTab.java:51)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
at java.awt.Component.processMouseEvent(Component.java:6539)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6304)
at java.awt.Container.processEvent(Container.java:2239)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2297)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
at java.awt.Container.dispatchEventImpl(Container.java:2283)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
at java.awt.EventQueue$4.run(EventQueue.java:733)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

regards
Markus