Error when implementing the example Fermi Hubbard model

[zxm403089989]

I receive the error when running the Fermi Hubbard model example in "/examples/fermi_hubbard/main.jl" https://github.com/QuantumKitHub/PEPSKit.jl/blob/master/examples/fermi_hubbard/main.jl. In line 85, env₀, = leading_boundary(CTMRGEnv(peps₀, V_env), peps₀; boundary_alg...);, https://github.com/QuantumKitHub/PEPSKit.jl/blob/master/examples/fermi_hubbard/main.jl#L85, REPL returns the method error. I paste them in following.

MethodError: no method matching PEPSKit.CTMRGAlgorithm(; alg::Symbol, tol::Float64, verbosity::Int64, svd_alg::SVDAdjoint{SDD, FullSVDReverseRule}, trunc::@NamedTuple{alg::Symbol})
This error has been manually thrown, explicitly, so the method may exist but be intentionally marked as unimplemented.

Closest candidates are:
  PEPSKit.CTMRGAlgorithm(; alg, tol, maxiter, miniter, verbosity, trscheme, svd_alg, projector_alg) got unsupported keyword argument "trunc"
   @ PEPSKit C:\Users\User\.julia\packages\PEPSKit\jRcMd\src\algorithms\ctmrg\ctmrg.jl:16


Stacktrace:
 [1] kwerr(kw::@NamedTuple{alg::Symbol, tol::Float64, verbosity::Int64, svd_alg::SVDAdjoint{SDD, FullSVDReverseRule}, trunc::@NamedTuple{alg::Symbol}}, args::Type)
   @ Base .\error.jl:165
 [2] select_algorithm(::typeof(leading_boundary), env₀::CTMRGEnv{TensorMap{ComplexF64, GradedSpace{ProductSector{Tuple{FermionParity, U1Irrep}}, TensorKit.SortedVectorDict{ProductSector{Tuple{FermionParity, U1Irrep}}, Int64}}, 1, 1, Vector{ComplexF64}}, TensorMap{ComplexF64, GradedSpace{ProductSector{Tuple{FermionParity, U1Irrep}}, TensorKit.SortedVectorDict{ProductSector{Tuple{FermionParity, U1Irrep}}, Int64}}, 3, 1, Vector{ComplexF64}}}; alg::Symbol, tol::Float64, verbosity::Int64, svd_alg::@NamedTuple{}, kwargs::@Kwargs{trunc::@NamedTuple{alg::Symbol}})
   @ PEPSKit C:\Users\User\.julia\packages\PEPSKit\jRcMd\src\algorithms\select_algorithm.jl:78
 [3] select_algorithm
   @ C:\Users\User\.julia\packages\PEPSKit\jRcMd\src\algorithms\select_algorithm.jl:53 [inlined]
 [4] leading_boundary(env₀::CTMRGEnv{TensorMap{ComplexF64, GradedSpace{ProductSector{Tuple{FermionParity, U1Irrep}}, TensorKit.SortedVectorDict{ProductSector{Tuple{FermionParity, U1Irrep}}, Int64}}, 1, 1, Vector{ComplexF64}}, TensorMap{ComplexF64, GradedSpace{ProductSector{Tuple{FermionParity, U1Irrep}}, TensorKit.SortedVectorDict{ProductSector{Tuple{FermionParity, U1Irrep}}, Int64}}, 3, 1, Vector{ComplexF64}}}, network::InfiniteSquareNetwork{Tuple{TensorMap{ComplexF64, GradedSpace{ProductSector{Tuple{FermionParity, U1Irrep}}, TensorKit.SortedVectorDict{ProductSector{Tuple{FermionParity, U1Irrep}}, Int64}}, 1, 4, Vector{ComplexF64}}, TensorMap{ComplexF64, GradedSpace{ProductSector{Tuple{FermionParity, U1Irrep}}, TensorKit.SortedVectorDict{ProductSector{Tuple{FermionParity, U1Irrep}}, Int64}}, 1, 4, Vector{ComplexF64}}}}; kwargs::@Kwargs{tol::Float64, alg::Symbol, trunc::@NamedTuple{alg::Symbol}})
   @ PEPSKit C:\Users\User\.julia\packages\PEPSKit\jRcMd\src\algorithms\ctmrg\ctmrg.jl:107
 [5] leading_boundary
   @ C:\Users\User\.julia\packages\PEPSKit\jRcMd\src\algorithms\ctmrg\ctmrg.jl:106 [inlined]
 [6] #leading_boundary#387
   @ C:\Users\User\.julia\packages\PEPSKit\jRcMd\src\algorithms\ctmrg\ctmrg.jl:139 [inlined]
 [7] top-level scope
   @ In[9]:3

[lkdvos]

Could you tell us a bit more about the versions of the packages you are running?
At first glance this looks like you are copying the example from the master branch, while running it on the latest released branch. (This is definitely our fault though, we should really have included a link to the latest stable docs, here it is for convenience: https://quantumkithub.github.io/PEPSKit.jl/stable/examples/fermi_hubbard/#Fermi-Hubbard-model-with-f\\mathbb{Z}_2-\\boxtimes-U(1)-symmetry,-at-large-U-and-half-filling)

[zxm403089989]

Could you tell us a bit more about the versions of the packages you are running? At first glance this looks like you are copying the example from the master branch, while running it on the latest released branch. (This is definitely our fault though, we should really have included a link to the latest stable docs, here it is for convenience: https://quantumkithub.github.io/PEPSKit.jl/stable/examples/fermi_hubbard/#Fermi-Hubbard-model-with-f\mathbb{Z}_2-\boxtimes-U(1)-symmetry,-at-large-U-and-half-filling)

Thank you very much for reply. I'm using Julia 1.11.5, with TensorKit v0.14.11, PEPSKit v0.6.1 and MPSKit v0.13.7.

[lkdvos]

Yes indeed, if you instead run the example from the link I included, it should run. Do let us know if you encounter any more issues though!