[news.eclipse.modeling.mdt] Problem while re-generating UML2Tools clazz

[n.brouwers@xxxxxxxxx (Niels Brouwers)]

Hi,

for our project I want to make a customized version of the UML2Tools class 
diagram. To start, I want to re-generate the clazz diagram from the 
org.eclipse.uml2.diagram.def project. What I did was:

- import plug-in org.eclipse.uml2.diagram.def as a source project.
- started the UML2Tools generation by selecting the 'Generate UML2Tools 
Diagram' option from the context menu of 'classdiagram.gmfgen'
- I have ignored the fact that the validation of the generator model did 
not pass.

After a while, I get the following error:

Problems while generating code
Exception (Couldn't find operation 
'hasConformableSemanticChildren(GenDiagram)' for GenDiagram.:in 
aspects::xpt::diagram::updater::containerBaseCanonicalMethods on line 40 
'hasConformableSemanticChildren(this)') while generating code
 Couldn't find operation 'hasConformableSemanticChildren(GenDiagram)' for 
GenDiagram.:in 
aspects::xpt::diagram::updater::containerBaseCanonicalMethods on line 40 
'hasConformableSemanticChildren(this)'

Additional info:
- I am working with Eclipse 3.4
- Downloaded the newest UML2Tools & GMF this morning.

Can someone please help me with this problem?

Kind regards,
Niels Brouwers.