Readme example fails

[hros]

Trying to execute the example in the readme.md file:

But when running the classify command, I get the following error:

ERROR: MethodError: no method matching maxpool(::Array{Float32,4}, ::Tuple{Int64,Int64})

I am running Julia version 1.1.1 on Ubuntu 16.04

[ekinimo]

i have the same problem with the exact same setup,
Here are the test results for Metalhead

(v1.1) pkg> test Metalhead
Testing Metalhead
Status /tmp/tmpTgwaAI/Manifest.toml
[621f4979] AbstractFFTs v0.4.1
[1520ce14] AbstractTrees v0.2.1
[79e6a3ab] Adapt v0.4.2
[13072b0f] AxisAlgorithms v1.0.0
[39de3d68] AxisArrays v0.3.0
[fbb218c0] BSON v0.2.3
[9e28174c] BinDeps v0.8.10
[b99e7846] BinaryProvider v0.5.4
[00ebfdb7] CSTParser v0.6.0
[aafaddc9] CatIndices v0.2.0
[944b1d66] CodecZlib v0.5.2
[3da002f7] ColorTypes v0.8.0
[c3611d14] ColorVectorSpace v0.6.2
[5ae59095] Colors v0.9.5
[bbf7d656] CommonSubexpressions v0.2.0
[34da2185] Compat v2.1.0
[ed09eef8] ComputationalResources v0.3.0
[8f4d0f93] Conda v1.3.0
[150eb455] CoordinateTransformations v0.5.0
[a8cc5b0e] Crayons v4.0.0
[dc8bdbbb] CustomUnitRanges v0.2.0
[864edb3b] DataStructures v0.15.0
[163ba53b] DiffResults v0.0.4
[b552c78f] DiffRules v0.0.10
[b4f34e82] Distances v0.8.0
[4f61f5a4] FFTViews v0.2.0
[7a1cc6ca] FFTW v0.2.4
[5789e2e9] FileIO v1.0.7
[53c48c17] FixedPointNumbers v0.5.3
[587475ba] Flux v0.8.3
[f6369f11] ForwardDiff v0.10.3
[a2bd30eb] Graphics v0.4.0
[bbac6d45] IdentityRanges v0.3.0
[2803e5a7] ImageAxes v0.6.0
[a09fc81d] ImageCore v0.7.4
[51556ac3] ImageDistances v0.1.1
[6a3955dd] ImageFiltering v0.5.4
[bc367c6b] ImageMetadata v0.7.1
[787d08f9] ImageMorphology v0.1.1
[4e3cecfd] ImageShow v0.2.0
[02fcd773] ImageTransformations v0.8.0
[916415d5] Images v0.17.3
[9b13fd28] IndirectArrays v0.5.0
[a98d9a8b] Interpolations v0.12.2
[8197267c] IntervalSets v0.3.1
[c8e1da08] IterTools v1.1.1
[682c06a0] JSON v0.20.0
[e5e0dc1b] Juno v0.7.0
[1914dd2f] MacroTools v0.5.0
[dbb5928d] MappedArrays v0.2.1
[e89f7d12] Media v0.5.0
[dbeba491] Metalhead v0.3.0
[e1d29d7a] Missings v0.4.1
[872c559c] NNlib v0.6.0
[77ba4419] NaNMath v0.3.2
[6fe1bfb0] OffsetArrays v0.11.0
[bac558e1] OrderedCollections v1.1.0
[5432bcbf] PaddedViews v0.4.2
[92933f4c] ProgressMeter v0.9.0
[b3c3ace0] RangeArrays v0.3.1
[c84ed2f1] Ratios v0.3.1
[189a3867] Reexport v0.2.0
[ae029012] Requires v0.5.2
[6038ab10] Rotations v0.11.1
[699a6c99] SimpleTraits v0.8.0
[a2af1166] SortingAlgorithms v0.3.1
[276daf66] SpecialFunctions v0.7.2
[90137ffa] StaticArrays v0.11.0
[2913bbd2] StatsBase v0.30.0
[06e1c1a7] TiledIteration v0.2.3
[a759f4b9] TimerOutputs v0.5.0
[0796e94c] Tokenize v0.5.4
[9f7883ad] Tracker v0.2.2
[3bb67fe8] TranscodingStreams v0.9.4
[30578b45] URIParser v0.4.0
[81def892] VersionParsing v1.1.3
[efce3f68] WoodburyMatrices v0.4.1
[a5390f91] ZipFile v0.8.3
[2a0f44e3] Base64 [@stdlib/Base64]
[ade2ca70] Dates [@stdlib/Dates]
[8bb1440f] DelimitedFiles [@stdlib/DelimitedFiles]
[8ba89e20] Distributed [@stdlib/Distributed]
[b77e0a4c] InteractiveUtils [@stdlib/InteractiveUtils]
[76f85450] LibGit2 [@stdlib/LibGit2]
[8f399da3] Libdl [@stdlib/Libdl]
[37e2e46d] LinearAlgebra [@stdlib/LinearAlgebra]
[56ddb016] Logging [@stdlib/Logging]
[d6f4376e] Markdown [@stdlib/Markdown]
[a63ad114] Mmap [@stdlib/Mmap]
[44cfe95a] Pkg [@stdlib/Pkg]
[de0858da] Printf [@stdlib/Printf]
[9abbd945] Profile [@stdlib/Profile]
[3fa0cd96] REPL [@stdlib/REPL]
[9a3f8284] Random [@stdlib/Random]
[ea8e919c] SHA [@stdlib/SHA]
[9e88b42a] Serialization [@stdlib/Serialization]
[1a1011a3] SharedArrays [@stdlib/SharedArrays]
[6462fe0b] Sockets [@stdlib/Sockets]
[2f01184e] SparseArrays [@stdlib/SparseArrays]
[10745b16] Statistics [@stdlib/Statistics]
[8dfed614] Test [@stdlib/Test]
[cf7118a7] UUIDs [@stdlib/UUIDs]
[4ec0a83e] Unicode [@stdlib/Unicode]
ERROR: LoadError: MethodError: no method matching maxpool(::Array{Float32,4}, ::Tuple{Int64,Int64})
Closest candidates are:
maxpool(::AbstractArray{xT,N}, ::NNlib.PoolDims; kwargs...) where {xT, N} at /usr/home/sut/.julia/packages/TimerOutput>s/7zSea/src/TimerOutput.jl:198
Stacktrace:
[1] (::getfield(Metalhead, Symbol("##42#48")))(::Array{Float32,4}) at /usr/home/sut/.julia/packages/Metalhead/fYeSU/src>/vgg19.jl:6
[2] 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")),Fl>ux.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 /usr/home/sut/.julia/packages/Flux/qXNjB/src/layers/basic.jl:31 (repeats 3 times)
[3] (::Flux.Chain{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),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 /usr/home/sut/.julia/packages/Flux/qXNjB/src/layers/basic.jl:33
[4] (::VGG19)(::Array{Float32,4}) at /usr/home/sut/.julia/packages/Metalhead/fYeSU/src/vgg19.jl:46
[5] top-level scope at none:0
[6] include at ./boot.jl:326 [inlined]
[7] include_relative(::Module, ::String) at ./loading.jl:1038
[8] include(::Module, ::String) at ./sysimg.jl:29
[9] include(::String) at ./client.jl:403
[10] top-level scope at none:0
in expression starting at /usr/home/sut/.julia/packages/Metalhead/fYeSU/test/runtests.jl:7
ERROR: Package Metalhead errored during testing

i believe problem lies in the ONNX.jl . here are the test results for ONNX.jl

(v1.1) pkg> test ONNX
Testing ONNX
Status /tmp/tmpnyOZv0/Manifest.toml
[1520ce14] AbstractTrees v0.2.1
[79e6a3ab] Adapt v0.4.2
[fbb218c0] BSON v0.2.3
[9e28174c] BinDeps v0.8.10
[b99e7846] BinaryProvider v0.5.4
[00ebfdb7] CSTParser v0.6.0
[944b1d66] CodecZlib v0.5.2
[3da002f7] ColorTypes v0.8.0
[5ae59095] Colors v0.9.5
[bbf7d656] CommonSubexpressions v0.2.0
[34da2185] Compat v2.1.0
[a8cc5b0e] Crayons v4.0.0
[a237f610] DataFlow v0.5.0
[864edb3b] DataStructures v0.15.0
[163ba53b] DiffResults v0.0.4
[b552c78f] DiffRules v0.0.10
[53c48c17] FixedPointNumbers v0.5.3
[587475ba] Flux v0.8.3
[f6369f11] ForwardDiff v0.10.3
[e5e0dc1b] Juno v0.7.0
[50d2b5c4] Lazy v0.13.2
[1914dd2f] MacroTools v0.5.0
[e89f7d12] Media v0.5.0
[e1d29d7a] Missings v0.4.1
[872c559c] NNlib v0.6.0
[77ba4419] NaNMath v0.3.2
[d0dd6a25] ONNX v0.1.0
[bac558e1] OrderedCollections v1.1.0
[3349acd9] ProtoBuf v0.7.0
[189a3867] Reexport v0.2.0
[ae029012] Requires v0.5.2
[a2af1166] SortingAlgorithms v0.3.1
[276daf66] SpecialFunctions v0.7.2
[90137ffa] StaticArrays v0.11.0
[2913bbd2] StatsBase v0.30.0
[a759f4b9] TimerOutputs v0.5.0
[0796e94c] Tokenize v0.5.4
[9f7883ad] Tracker v0.2.2
[3bb67fe8] TranscodingStreams v0.9.4
[30578b45] URIParser v0.4.0
[a5390f91] ZipFile v0.8.3
[2a0f44e3] Base64 [@stdlib/Base64]
[ade2ca70] Dates [@stdlib/Dates]
[8bb1440f] DelimitedFiles [@stdlib/DelimitedFiles]
[8ba89e20] Distributed [@stdlib/Distributed]
[b77e0a4c] InteractiveUtils [@stdlib/InteractiveUtils]
[76f85450] LibGit2 [@stdlib/LibGit2]
[8f399da3] Libdl [@stdlib/Libdl]
[37e2e46d] LinearAlgebra [@stdlib/LinearAlgebra]
[56ddb016] Logging [@stdlib/Logging]
[d6f4376e] Markdown [@stdlib/Markdown]
[a63ad114] Mmap [@stdlib/Mmap]
[44cfe95a] Pkg [@stdlib/Pkg]
[de0858da] Printf [@stdlib/Printf]
[9abbd945] Profile [@stdlib/Profile]
[3fa0cd96] REPL [@stdlib/REPL]
[9a3f8284] Random [@stdlib/Random]
[ea8e919c] SHA [@stdlib/SHA]
[9e88b42a] Serialization [@stdlib/Serialization]
[1a1011a3] SharedArrays [@stdlib/SharedArrays]
[6462fe0b] Sockets [@stdlib/Sockets]
[2f01184e] SparseArrays [@stdlib/SparseArrays]
[10745b16] Statistics [@stdlib/Statistics]
[8dfed614] Test [@stdlib/Test]
[cf7118a7] UUIDs [@stdlib/UUIDs]
[4ec0a83e] Unicode [@stdlib/Unicode]
WARNING: Method definition iterate(DataFlow.ObjectArraySet{T} where T, Any...) in module DataFlow at /usr/home/sut/.julia/packages/Lazy/ZAeCx/src/macros.jl:285 overwritten at /usr/home/sut/.julia/packages/Lazy/ZAeCx/src/macros.jl:285.
WARNING: Method definition iterate(DataFlow.ObjectArraySet{T} where T, Any...) in module DataFlow at /usr/home/sut/.julia/packages/Lazy/ZAeCx/src/macros.jl:285 overwritten at /usr/home/sut/.julia/packages/Lazy/ZAeCx/src/macros.jl:285.
WARNING: Method definition iterate(DataFlow.ObjectArraySet{T} where T, Any...) in module DataFlow at /usr/home/sut/.julia/packages/Lazy/ZAeCx/src/macros.jl:285 overwritten at /usr/home/sut/.julia/packages/Lazy/ZAeCx/src/macros.jl:285.
WARNING: Method definition iterate(DataFlow.ObjectArraySet{T} where T, Any...) in module DataFlow at /usr/home/sut/.julia/packages/Lazy/ZAeCx/src/macros.jl:285 overwritten at /usr/home/sut/.julia/packages/Lazy/ZAeCx/src/macros.jl:285.
Downloading test data....
Cloning into 'onnx'...
remote: Enumerating objects: 2, done.
remote: Counting objects: 100% (2/2), done.
remote: Compressing objects: 100% (2/2), done.
remote: Total 17762 (delta 0), reused 1 (delta 0), pack-reused 17760
Receiving objects: 100% (17762/17762), 9.13 MiB | 4.94 MiB/s, done.
Resolving deltas: 100% (9608/9608), done.
Checking connectivity... done.
ONNX: Test Failed at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/ops_tests.jl:114
Expression: ≈(((ONNX.ops[Symbol(get_optype(read_model(filename)))])(get_dict(read_model(filename)), ip...) |> syntax) >|> eval, op_expected, atol=0.001)
Evaluated: [2.15309 1.12259 1.54411 1.6154; 1.64039 1.84711 2.03664 2.05161; … ; 2.33234 1.45116 1.5357 1.60765; 2.19>2 1.64431 1.65682 1.1689]

[4.29606 3.0506 1.2262 1.22461; 0.660878 1.34998 0.97315 0.00713262; … ; 2.24321 -0.335784 3.64739 1.84095; -1.17126 -0.>263888 1.79627 1.74456]

[-1.44342 -0.984444 -1.32833 -0.333053; -1.7227 -1.59698 -0.364201 -0.605077; … ; 0.811567 -1.86846 -1.54272 -1.13199; ->1.03826 -0.815031 -0.676275 -0.927807]

[1.23718 1.33893 1.76404 1.23254; 1.3548 0.877154 1.53845 1.16262; … ; 0.841035 1.1489 1.02578 1.37285; 1.55666 1.50949 >1.64121 1.51108]

[2.72273 -0.747425 1.85892 0.600846; 0.38063 0.0655282 0.0160268 1.38995; … ; 3.14342 2.61572 0.294685 1.25798; -0.28530>6 0.206473 0.997859 0.946139]

[0.760724 0.806188 0.749002 -0.051775; -1.66837 -0.966058 0.0261059 0.0570868; … ; 0.0737359 0.790641 0.780959 -0.193403>; -1.53708 0.45801 -0.85658 0.038257] ≈ Float32[2.16028 1.12082 1.54601 1.61791; 1.64312 1.85164 2.04282 2.05791; … ; 2.>34109 1.45225 1.53752 1.6101; 2.19953 1.64708 1.65969 1.16753]

Float32[4.50685 3.20878 1.30733 1.30567; 0.718128 1.43634 1.04359 0.0367703; … ; 2.36729 -0.32063 3.83078 1.94804; -1.19>139 -0.245697 1.90147 1.84758]

Float32[-3.63249 -2.39693 -3.32265 -0.643395; -4.3843 -4.04586 -0.727244 -1.37568; … ; 2.4379 -4.7767 -3.8998 -2.79412; >-2.5418 -1.94087 -1.56734 -2.24446]

Float32[1.2364 1.33904 1.76784 1.23172; 1.35505 0.873248 1.5403 1.1612; … ; 0.836815 1.14736 1.02317 1.37325; 1.55866 1.>51108 1.64395 1.51268]

Float32[2.86707 -0.749657 1.96677 0.655561; 0.426044 0.0976323 0.0460402 1.47799; … ; 3.30553 2.75553 0.336468 1.34045; >-0.26802 0.24453 1.06934 1.01544]

Float32[2.30104 2.42342 2.26948 0.113802; -4.23805 -2.34743 0.323456 0.406856; … ; 0.451675 2.38157 2.35551 -0.267458; ->3.88461 1.48613 -2.05272 0.356166] (atol=0.001)
Stacktrace:
[1] main_test(::String, ::Array{Float32,4}, ::Array{Float32,4}, ::Vararg{Any,N} where N) at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/ops_tests.jl:114
[2] top-level scope at none:0
[3] include at ./boot.jl:326 [inlined]
[4] include_relative(::Module, ::String) at ./loading.jl:1038
[5] include(::Module, ::String) at ./sysimg.jl:29
[6] include(::String) at ./client.jl:403
[7] top-level scope at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/runtests.jl:9
[8] top-level scope at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Test/src/Test.jl:1083
[9] top-level scope at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/runtests.jl:8
ONNX: Test Failed at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/ops_tests.jl:114
Expression: ≈(((ONNX.ops[Symbol(get_optype(read_model(filename)))])(get_dict(read_model(filename)), ip...) |> syntax) >|> eval, op_expected, atol=0.001)
Evaluated: [-0.999992; 0.0; 0.999992]

[-0.355395; 1.0; 2.3554] ≈ Float32[-0.999995; 0.0; 0.999995]

Float32[-0.224741; 1.0; 2.22474] (atol=0.001)
Stacktrace:
[1] main_test(::String, ::Array{Float32,4}, ::Array{Float32,4}, ::Vararg{Any,N} where N) at /usr/home/sut/.julia/packag>es/ONNX/7ZopS/test/ops_tests.jl:114
[2] top-level scope at none:0
[3] include at ./boot.jl:326 [inlined]
[4] include_relative(::Module, ::String) at ./loading.jl:1038
[5] include(::Module, ::String) at ./sysimg.jl:29
[6] include(::String) at ./client.jl:403
[7] top-level scope at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/runtests.jl:9
[8] top-level scope at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Test/src/Test.jl:1083
[9] top-level scope at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/runtests.jl:8
ONNX: Error During Test at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/runtests.jl:6
Got exception outside of a @test
LoadError: LoadError: MethodError: no method matching maxpool(::Array{Float32,4}, ::Tuple{Int64,Int64}; pad=(0, 0), st>ride=(1, 1))
Closest candidates are:
maxpool(::AbstractArray{xT,N}, !Matched::PoolDims; kwargs...) where {xT, N} at /usr/home/sut/.julia/packages/TimerOu>tputs/7zSea/src/TimerOutput.jl:198
Stacktrace:
[1] top-level scope at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/temp_maxpool.jl:2
[2] include at ./boot.jl:326 [inlined]
[3] include_relative(::Module, ::String) at ./loading.jl:1038
[4] include(::Module, ::String) at ./sysimg.jl:29
[5] include(::String) at ./client.jl:403
[6] main_test(::String, ::Array{Float32,3}, ::Array{Float32,3}) at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/ops_>tests.jl:78
[7] top-level scope at none:0
[8] include at ./boot.jl:326 [inlined]
[9] include_relative(::Module, ::String) at ./loading.jl:1038
[10] include(::Module, ::String) at ./sysimg.jl:29
[11] include(::String) at ./client.jl:403
[12] top-level scope at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/runtests.jl:11
[13] top-level scope at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Test/src/Test.jl:1083
[14] top-level scope at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/runtests.jl:8
[15] include at ./boot.jl:326 [inlined]
[16] include_relative(::Module, ::String) at ./loading.jl:1038
[17] include(::Module, ::String) at ./sysimg.jl:29
[18] include(::String) at ./client.jl:403
[19] top-level scope at none:0
[20] eval(::Module, ::Any) at ./boot.jl:328
[21] exec_options(::Base.JLOptions) at ./client.jl:243
[22] _start() at ./client.jl:436
in expression starting at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/temp_maxpool.jl:1
in expression starting at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/pooling.jl:6
Test Summary: | Pass Fail Error Total
ONNX | 28 2 1 31
ERROR: LoadError: Some tests did not pass: 28 passed, 2 failed, 1 errored, 0 broken.
in expression starting at /usr/home/sut/.julia/packages/ONNX/7ZopS/test/runtests.jl:6
ERROR: Package ONNX errored during testing

[teddykoker]

Try installing from the master branch:

] add Metalhead#master

From this issue it appears the current version is using maxpool, which is deprecated in favor of MaxPool.

This solved the issue for me. Hope this helps

[julian43]

I also get an error when running the same example (in Linux Mint 19.2 and OS X Catalina):

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 /home/julian43/.julia/packages/TimerOutputs/7zSea/src/TimerOutput.jl:198

Stacktrace:
[1] (::getfield(Metalhead, Symbol("##42#48")))(::Array{Float32,4}) at /home/julian43/.julia/packages/Metalhead/fYeSU/src/vgg19.jl:6
[2] 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 /home/julian43/.julia/packages/Flux/dkJUV/src/layers/basic.jl:31 (repeats 3 times)
[3] (::Flux.Chain{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),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 /home/julian43/.julia/packages/Flux/dkJUV/src/layers/basic.jl:33
[4] (::VGG19)(::Array{Float32,4}) at /home/julian43/.julia/packages/Metalhead/fYeSU/src/vgg19.jl:46
[5] forward(::VGG19, ::Array{RGB{Normed{UInt8,8}},2}) at /home/julian43/.julia/packages/Metalhead/fYeSU/src/utils.jl:70
[6] classify(::VGG19, ::Array{RGB{Normed{UInt8,8}},2}) at /home/julian43/.julia/packages/Metalhead/fYeSU/src/utils.jl:98
[7] top-level scope at In[15]:1

[DhairyaLGandhi]

Could you try with the latest tagged? It should be resolved now

[DilumAluthge]

@dhairyagandhi96 Can this issue be closed now?

[DhairyaLGandhi]

Thank you!