Meatlhead使用问题

MethodError: no method matching maxpool(::Array{Float32,4}, ::Tuple{Int64,Int64})
Closest candidates are:
maxpool(::AbstractArray{xT,N}, !Matched::NNlib.PoolDims; kwargs…) where {xT, N} at C:\Users\卿风.juliapro\JuliaPro_v1.1.1.1\packages\TimerOutputs\7zSea\src\TimerOutput.jl:198
(::getfield(Metalhead, Symbol(“##42#48”)))(::Array{Float32,4}) at vgg19.jl:6
applychain(::Tuple{getfield(Metalhead, Symbol(“##42#48”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##43#49”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##44#50”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##45#51”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##46#52”)),getfield(Metalhead, Symbol(“##47#53”)),Flux.Dense{typeof(NNlib.relu),LinearAlgebra.Adjoint{Float32,Array{Float32,2}},Array{Float32,1}},Flux.Dropout{Float32},Flux.Dense{typeof(NNlib.relu),LinearAlgebra.Adjoint{Float32,Array{Float32,2}},Array{Float32,1}},Flux.Dropout{Float32},Flux.Dense{typeof(identity),LinearAlgebra.Adjoint{Float32,Array{Float32,2}},Array{Float32,1}},typeof(NNlib.softmax)}, ::Array{Float32,4}) at basic.jl:31
applychain(::Tuple{Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##42#48”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##43#49”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##44#50”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##45#51”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##46#52”)),getfield(Metalhead, Symbol(“##47#53”)),Flux.Dense{typeof(NNlib.relu),LinearAlgebra.Adjoint{Float32,Array{Float32,2}},Array{Float32,1}},Flux.Dropout{Float32},Flux.Dense{typeof(NNlib.relu),LinearAlgebra.Adjoint{Float32,Array{Float32,2}},Array{Float32,1}},Flux.Dropout{Float32},Flux.Dense{typeof(identity),LinearAlgebra.Adjoint{Float32,Array{Float32,2}},Array{Float32,1}},typeof(NNlib.softmax)}, ::Array{Float32,4}) at basic.jl:31
applychain(::Tuple{Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##42#48”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##43#49”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##44#50”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##45#51”)),Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},Flux.Conv{2,2,typeof(NNlib.relu),Array{Float32,4},Array{Float32,1}},getfield(Metalhead, Symbol(“##46#52”)),getfield(Metalhead, Symbol(“##47#53”)),Flux.Dense{typeof(NNlib.relu),LinearA…

源码呢?怎么重复这个错误?