Macro CPXERR_NO_SENSIT
Definition file: cplex.h
CPXERR_NO_SENSIT
1260 Sensitivity analysis not available for current status.
      
 Sensitivity information is not available 
 because an optimal basic solution does not 
 exist for the currently loaded problem. 
 Optimize the problem and check to make sure 
 that it is not infeasible or unbounded.