[Paraview] PV4.10 extracting a surface

[Stephen Wornom]

The geometry is a cylinder. 
Using the calculator I do 
rad =sqrt( x**2+y**2) 
I would like to extract the cylinder surface which is rad = 0.1 
I click on threshold then information to see rad 0.1<rad<7 
I click on extract and enter the values min = 0.1 and max 0.1 for rad 
I get this message 
w arning: In /home/utkarsh/Dashboards/MyTests/NightlyMaster/ParaViewSuperbuild-Release/paraview/src/paraview/ParaViewCore/ServerManager/Rendering/vtkSMPVRepresentationProxy.cxx, line 279 

vtkSMPVRepresentationProxy (0x359fd080): Could not determine array range. 
Any ideas to the solution of my problem? 
Thanks in advance, 
Stephen 
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