Population Set Attribute Error

[rabiu42000]

I get this error. Any ideas on what is causing it?

pymoo\core\population.py", line 58, in set
raise Exception("Population Set Attribute Error: Number of values and population size do not match!")

[blankjul]

In _evaluate the array to set to out is most likely not in the correct shape. If you use ElementwiseProblem it should be for out["F"] a vector of length problem.n_obj.