Issues using a vector connector in ModelingToolkit for acausal modeling

[fracpl]

This sounds very similar to the issue I am describing here:

ModelingToolkit connector error with Arrays

Hi, I am trying to implement from scratch some 3D multibody dynamics with ModelingToolkit.jl. When I define my connector (Frame) using arrays: using ModelingToolkit using LinearAlgebra using ModelingToolkit: t_nounits as t, D_nounits as D @connector Frame begin r(t)[1:3] q(t)[1:4] f(t)[1:3], [connect=Flow] τ(t)[1:3], [connect=Flow] end @named f = Frame() I get the following error: ERROR: MethodError: no method matching CartesianIndices(::Tuple{SubArray{Any, 1, Vector{Any}, T…

…no solution yet.