disc_method

[ox217]

Hi everyone.

I was trying to change the discretization method to one of those shown here: https://control-toolbox.org/Tutorials.jl/stable/tutorial-discretisation.html.

The problem is that with any method I tried, even :midpoint, I get this warning:
┌ Warning: disc_method does not seem to be a valid Ipopt option.
└ @ NLPModelsIpopt C:\Users\molina.julia\packages\NLPModelsIpopt\0YgvC\src\NLPModelsIpopt.jl:214

It runs the problem, but it does not change the discretization method. I could verify this because I obtained the same iteration steps. This is how I use the solve function:
sol = solve(ocp;disc_method=:trapeze, init=(state=[0.1, 0.1,0.1,20],control=-0.49),grid_size=600, max_iter=1000, tol=1e-8 ).

Could that be a problem with the version of IPOPT I'm using, or could it be something else? I tried updating OptimalControl and NLPModelsIpopt but that did not fix the problem.

Thanks in advance.

[ox217]

It was a problem with the updating of Julia.