I tried to create a project based on JavaFX SDK example (Drag and Drop) and got the following error:

An internal error occurred during: "Creating dd project".

org.eclipse.swt.SWTException: Invalid thread access
at org.eclipse.swt.SWT.error(SWT.java:3884)
at org.eclipse.swt.SWT.error(SWT.java:3799)
at org.eclipse.swt.SWT.error(SWT.java:3770)
at org.eclipse.swt.widgets.Widget.error(Widget.java:450)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:389)
at org.eclipse.swt.widgets.List.getSelectionIndices(List.java:651)
at org.eclipse.jface.viewers.ListViewer.listGetSelectionIndices(ListViewer.java:145)
at org.eclipse.jface.viewers.AbstractListViewer.getSelectionFromWidget(AbstractListViewer.java:280)
at org.eclipse.jface.viewers.StructuredViewer.getSelection(StructuredViewer.java:994)
at com.exadel.javafx.ide.examples.wizard.NewJFXExampleProjectWizardPage.getExample(NewJFXExampleProjectWizardPage.java:225)
at com.exadel.javafx.ide.examples.wizard.NewJFXExampleProjectWizard$1.run(NewJFXExampleProjectWizard.java:115)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)


eclipse.buildId=unknown
java.version=1.6.0_20
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os linux -ws gtk -arch x86 -product org.eclipse.epp.package.jee.product

The project was created but with empty 'src' folder.

Update: I was able to create a project after a number of tries but no matter what example I select, the project always created based on PathAnimation example (that's the first project that I successfully created).