The code will fail with either of the calculations shown here. The factor line works fine.
using SparseArrays
using KLU
A = sprand(100, 100, 0.1) # Sparse matrix with 10% density
factor = klu(A)
condition_number = rcond(factor)
condition_number = condest(factor)
ERROR: LoadError: UndefVarError: `rcond` not defined in `Main`
ERROR: LoadError: UndefVarError: `condest` not defined in `Main`