Problem with Ideal_graph_visualizer

[Bahram Yarahmadi]

Hi guys,
When I enter mx igv command in the graal-core directory to see the
visulizer I get this Error
Buildfile:
/home/bahram/graal/jvmci/src/share/tools/IdealGraphVisualizer/build.xml
IGV ant build & launch failed. Check '.ideal_graph_visualizer.log'. You can
also try to delete 'src/share/tools/IdealGraphVisualizer/nbplatform'.


what should I do ?


Regrads