[Gate-users] gate6.1_Volumedisplay

[????]

Hello friends:I tried to draw a volume with OGLSX

Idle> /gate/cylindricalPET/vis/forceWireframe 

I get the following error message

G4PhysicalVolumeModel::Validate() called.

  Volume of the same name and copy number ("world_phys", copy 0) still exists and is being used.

  WARNING: This does not necessarily guarantee it's the same

  volume you originally specified in /vis/scene/add/.

G4PhysicalVolumeModel::Validate() called.

  Volume of the same name and copy number ("world_phys", copy 0) still exists and is being used.

  WARNING: This does not necessarily guarantee it's the same

  volume you originally specified in /vis/scene/add/.

I tried with  command "/gate/geometry/rebuild" but still getting the same error message!
The volume can't be visualized!
Would you please help me to find out the problem!Best regards