Triangle examples in examples/triangleexamples.jl fail

The examples here fail (below is Lines 1-12 from that file)

julia> using ApproxFun, MultivariateOrthogonalPolynomials, BlockArrays, SpecialFunctions, FillArrays, Plots
       import ApproxFun: blockbandwidths, Vec, PiecewiseSegment
       import MultivariateOrthogonalPolynomials: DirichletTriangle
       S = TriangleWeight(1,1,1,JacobiTriangle(1,1,1))
       Δ = Laplacian(S)
WARNING: could not import ApproxFun.blockbandwidths into Main
WARNING: could not import ApproxFun.Vec into Main
WARNING: could not import MultivariateOrthogonalPolynomials.DirichletTriangle into Main
ERROR: MethodError: no method matching TriangleWeight(::Int64, ::Int64, ::Int64, ::JacobiTriangle{Float64, Int64})

Closest candidates are:
  TriangleWeight(::T, ::T, ::T) where T
   @ MultivariateOrthogonalPolynomials C:\Users\User\.julia\packages\MultivariateOrthogonalPolynomials\dZw1Q\src\triangle.jl:111

Stacktrace:
 [1] top-level scope
   @ Untitled-1:4

I believe in this case the fix is to do S = WeightedTriangle(1, 1, 1)? This error appears later in the script as well (might be some others too - Laplacian(S) also errors -, but I haven't run it that far). I could try and fix it up later once I've looked into it all a bit more.

Start by running examples/triangleexamples.jl and compare the reported import and TriangleWeight errors with the current APIs. Trace the later Laplacian failure as well; the work is done when the triangle example runs through without these errors or import warnings.