Frame incompabilities when Combining output from substructures

Abaqussubstructure 
In the abaqus tutorial , "Analysis of a rotating fan using substructures and cyclic symmetry", When I try to combine the obd files of substructures using the command : 

 'abaqus substructureCombine baseodb=fansubstr_1level_static_901.odb copyodb=fansubstr_1level_static_902.odb all',
I am getting this message: 

'Frame incompatibilities exist between ODB files.
No result data will be copied 
Substructure merger for fansubstr_1level_static_902.odb Complete'

The results are not getting copied. Could someone please help me with this?