[Gvsig_usuarios] topologia de red in gvsig 1.9 alpha

[Laura Criscuolo]

I'm learning to use the routing tools on gvSIG 1.9 alpha and I have trouble loading the network topology and in the acceptance of paradas. 
In particular I am working on a network on which gvSIG 1.1 worked without problems the choice of the shortest path. 
In gvSIG 1.9, after selecting the network shapefile and generating the topology network, I request to load the topology, but no files topology is created or saved nor displayed . 
Placing then paradas on the network, and requiring the shortest path, it generates the error below: 

Errore non catturato per l'usario java.lang.NullPointerException: null     org.gvsig.graph.core.Network.restoreConnectors(Unknown Source) 
org.gvsig.graph.core.Network.reconstruyeTramo(Unknown Source) 
org.gvsig.graph.solvers.ShortestPathSolverAStar.calculateRoute(Unknown Source) 
org.gvsig.graph.ShortestPathExtension.calculateRoute(Unknown Source) 
org.gvsig.graph.ShortestPathExtension.execute(Unknown Source) 
com.iver.andami.plugins.ExtensionDecorator.execute(Unknown Source) 
com.iver.andami.ui.mdiFrame.MDIFrame.actionPerformed(Unknown Source)   

etc etc.... 

Do you know how to solve the problem? 
Thank you 
  
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