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Error when running the quickstart example #50

Description

@vsandinh

I tried to run the quickstart.jl example. However, I ran into the problem that no method matching QuadraticCost(::Int64, ::Int64, ::Int64)

ERROR: LoadError: MethodError: no method matching QuadraticCost(::Int64, ::Int64, ::Int64)
Closest candidates are:
QuadraticCost(::TQ, ::TR, ::TH, ::Tq, ::Tr, ::Real; checks, terminal, kwargs...) where {TQ, TR, TH, Tq, Tr, QC<:QuadraticCost} at /home/san/.julia/packages/TrajectoryOptimization/MxdKM/src/costfunctions.jl:330
Stacktrace:
[1] Altro.iLQRSolver(::Problem{RK3,Float64}, ::SolverOptions{Float64}, ::SolverStats{Float64}; kwarg_opts::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /home/san/.julia/packages/Altro/ZbP1c/src/ilqr/ilqr.jl:71
[2] Altro.iLQRSolver(::Problem{RK3,Float64}, ::SolverOptions{Float64}, ::SolverStats{Float64}) at /home/san/.julia/packages/Altro/ZbP1c/src/ilqr/ilqr.jl:52
[3] Altro.AugmentedLagrangianSolver(::Problem{RK3,Float64}, ::SolverOptions{Float64}, ::SolverStats{Float64}; solver_uncon::Type{T} where T, kwarg_opts::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /home/san/.julia/packages/Altro/ZbP1c/src/augmented_lagrangian/al_solver.jl:52
[4] ALTROSolver(::Problem{RK3,Float64}, ::SolverOptions{Float64}; infeasible::Bool, R_inf::Float64, solver_uncon::Type{T} where T, kwarg_opts::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /home/san/.julia/packages/Altro/ZbP1c/src/altro/altro_solver.jl:35
[5] ALTROSolver(::Problem{RK3,Float64}, ::SolverOptions{Float64}) at /home/san/.julia/packages/Altro/ZbP1c/src/altro/altro_solver.jl:23 (repeats 2 times)
[6] top-level scope at /home/san/Documents/QC-Code/TrajectoryOptimization.jl/examples/quickstart.jl:41
[7] include(::String) at ./client.jl:457
[8] top-level scope at none:1
in expression starting at /home/san/Documents/QC-Code/TrajectoryOptimization.jl/examples/quickstart.jl:41

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