Following is a sample code that I got from examples folder in the ModelingToolkit.jl. I added the last two lines to formulate the Problem. What are the possible reasons for the error in code " Only semi-explicit constant mass matrices are currently supported. Faulty equation: source₊p₊v(t) ~ resistor₊p₊v(t).". There are 26 states and 4 parameters whose default values were taken for the simulation.
include("electrical_components.jl") @named source = ConstantVoltage(V=10.0) @named resistor = Resistor(R=1.0) @named inductor1 = Inductor(L=1.0e-2) @named inductor2 = Inductor(L=2.0e-2) @named ground = Ground() eqs = [ connect(source.p, resistor.p) connect(resistor.n, inductor1.p) connect(inductor1.n, inductor2.p) connect(source.n, inductor2.n, ground.g) ] @named ll_model = ODESystem(eqs, t) ll_model = compose(ll_model, [source, resistor, inductor1, inductor2, ground]) sys =ll_model tspan = (0.0,100.0) prob = ODEProblem(sys,,tspan,)