# Error while loading Serialized BSON
**URL:** https://discourse.julialang.org/t/error-while-loading-serialized-bson/118408
**Category:** Machine Learning
**Tags:** question
**Created:** [August 20, 2024, 9:27am UTC](https://discourse.julialang.org/t/error-while-loading-serialized-bson/118408 "2024-08-20T09:27:56Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Emma\_B](https://discourse.julialang.org/u/Emma_B)
#### Post date: [August 20, 2024, 9:27am UTC](https://discourse.julialang.org/t/error-while-loading-serialized-bson/118408/1 "2024-08-20T09:27:56Z")
I have a BSON file, I used to save a Flux network using
```julia
@save modelpath model #Loss_params_1 batchSize NbBatch lr weigths
```
I’m trying to load “model”, but encountered the following error:
```julia
julia> d2 = BSON.load(myPath, @ __MODULE__ )
ERROR: MethodError: Cannot `convert` an object of type Int64 to an object of type Tuple{Int64}
Closest candidates are:
convert(::Type{T}, ::T) where T<:Tuple
@ Base essentials.jl:411
convert(::Type{T}, ::Tuple{Vararg{Any, N}}) where {N, T<:Tuple}
@ Base essentials.jl:412
convert(::Type{T}, ::CartesianIndex) where T<:Tuple
@ Base multidimensional.jl:128
...
Stacktrace:
[1] newstruct(::Type, ::Function, ::Vararg{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/extensions.jl:159
[2] (::BSON.var"#47#48")(d::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/extensions.jl:185
[3] _raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[4] (::BSON.var"#49#50")(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/extensions.jl:194
[5] raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:92
[6] (::BSON.var"#23#24"{IdDict{Any, Any}, Module})(x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:98
[7] applychildren!(f::BSON.var"#23#24"{IdDict{Any, Any}, Module}, x::Vector{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:26
[8] raise_recursive
@ ~/.julia/packages/BSON/mzJoC/src/read.jl:98 [inlined]
[9] (::BSON.var"#18#21"{IdDict{Any, Any}, Module})(x::Vector{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[10] applychildren!(f::BSON.var"#18#21"{IdDict{Any, Any}, Module}, x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:19
[11] _raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[12] raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:93
[13] (::BSON.var"#23#24"{IdDict{Any, Any}, Module})(x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:98
[14] applychildren!(f::BSON.var"#23#24"{IdDict{Any, Any}, Module}, x::Vector{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:26
[15] raise_recursive
@ ~/.julia/packages/BSON/mzJoC/src/read.jl:98 [inlined]
[16] (::BSON.var"#18#21"{IdDict{Any, Any}, Module})(x::Vector{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[17] applychildren!(f::BSON.var"#18#21"{IdDict{Any, Any}, Module}, x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:19
[18] _raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[19] (::BSON.var"#49#50")(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/extensions.jl:194
[20] raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:92
--- the last 8 lines are repeated 2 more times ---
[37] (::BSON.var"#23#24"{IdDict{Any, Any}, Module})(x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:98
[38] applychildren!(f::BSON.var"#23#24"{IdDict{Any, Any}, Module}, x::Vector{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:26
[39] raise_recursive
@ ~/.julia/packages/BSON/mzJoC/src/read.jl:98 [inlined]
[40] (::BSON.var"#18#21"{IdDict{Any, Any}, Module})(x::Vector{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[41] applychildren!(f::BSON.var"#18#21"{IdDict{Any, Any}, Module}, x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:19
[42] _raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[43] raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:93
[44] (::BSON.var"#23#24"{IdDict{Any, Any}, Module})(x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:98
[45] applychildren!(f::BSON.var"#23#24"{IdDict{Any, Any}, Module}, x::Vector{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:26
[46] raise_recursive
@ ~/.julia/packages/BSON/mzJoC/src/read.jl:98 [inlined]
[47] (::BSON.var"#18#21"{IdDict{Any, Any}, Module})(x::Vector{Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[48] applychildren!(f::BSON.var"#18#21"{IdDict{Any, Any}, Module}, x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:19
[49] _raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:82
[50] (::BSON.var"#49#50")(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/extensions.jl:194
[51] raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:92
[52] (::BSON.var"#19#22"{IdDict{Any, Any}, Module})(x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:86
[53] applychildren!(f::BSON.var"#19#22"{IdDict{Any, Any}, Module}, x::Dict{Symbol, Any})
@ BSON ~/.julia/packages/BSON/mzJoC/src/BSON.jl:19
[54] _raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:86
[55] raise_recursive(d::Dict{Symbol, Any}, cache::IdDict{Any, Any}, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:93
[56] raise_recursive
@ ~/.julia/packages/BSON/mzJoC/src/read.jl:103 [inlined]
[57] load(x::String, init::Module)
@ BSON ~/.julia/packages/BSON/mzJoC/src/read.jl:108
```
It used to work fine, even with different sessions, but yesterday it returned the error and I don’t know why. I may have updated a package without knowing it, but not to my knowledge.
Working with Julia 1.9.3 ,
```julia
[28312eec] Alert v1.2.0
[fbb218c0] BSON v0.3.9
[336ed68f] CSV v0.10.14
[052768ef] CUDA v5.4.3
[35d6a980] ColorSchemes v3.26.0
[5ae59095] Colors v0.12.11
[717857b8] DSP v0.7.9
[a93c6f00] DataFrames v1.6.1
[31a5f54b] Debugger v0.7.9
[8bb1440f] DelimitedFiles v1.9.1
[a7b11256] DigitalComm v1.2.0
[7a1cc6ca] FFTW v1.8.0
[4c728ea3] Flatten v0.4.3
[587475ba] Flux v0.14.19
[5903a43b] Infiltrator v1.8.3
[3587e190] InverseFunctions v0.1.16
[682c06a0] JSON v0.21.4
[23992714] MAT v0.10.7
[bac558e1] OrderedCollections v1.6.3
[8314cec4] PGFPlotsX v1.6.1
[d7d3b36b] ParameterSchedulers v0.4.2
[fbb45041] Pickle v0.3.5
[91a5bcdd] Plots v1.40.5
[21216c6a] Preferences v1.4.3
[08abe8d2] PrettyTables v2.3.2
[92933f4c] ProgressMeter v1.10.2
[6f49c342] RCall v0.14.4
[9896bf05] RFImpairmentsModels v0.3.0
[295af30f] Revise v3.5.18
[02a925ec] cuDNN v1.3.2
[8ba89e20] Distributed
[b77e0a4c] InteractiveUtils
[37e2e46d] LinearAlgebra
[56ddb016] Logging
[9a3f8284] Random
[10745b16] Statistics v1.9.0
```
Has anyone an idea how to solve my issue ?
Here’s a MWE:
```julia
using CUDA
using Flux
using BSON: @save, @load
MyFunc(x1,x2,x3) = x1 + x1.*x2+ x1.*x3
function create_DAConv_chain(fea_dim, in_channels, out_channels, kernel_size, stride, padding)
out_len = Int(floor((fea_dim + 2 * padding - (kernel_size - 1) - 1) / stride + 1))
conv_branch = Conv((kernel_size,), in_channels => out_channels, pad=padding, stride=stride)
spatial_att_conv = Conv((kernel_size,), in_channels => 1, stride=2, pad=0)
spatial_att_pool = MaxPool((kernel_size,), stride=2, pad=0)
spatial_att_deconv = ConvTranspose((kernel_size,), 1 => 1, stride=2, pad=0)
upsample = Upsample(:bilinear, size=(out_len))
channel_att_fc1 = Dense(fea_dim, out_channels)
channel_att_fc2 = Dense(in_channels, 1)
return Parallel(MyFunc; a = Chain(
conv_branch,
),
b = Chain(
spatial_att_conv,
relu,
spatial_att_pool,
spatial_att_deconv,
relu,
upsample,
x -> Flux.sigmoid.(x)
),
c = Chain(
channel_att_fc1,
x -> Flux.tanh.(x),
x -> permutedims(x, (2, 1, 3)),
channel_att_fc2,
x -> sum(x, dims=3),
x -> Flux.sigmoid.(x),
))
end
cnnPath = "/home/ebothere/Models/16_Aug_2024_10_19_06_454.bson"
@load cnnPath model
```
I can’t seems to be able to join the .bson to this post…
Thank you for your time !
---
### Author:  [@eldee](https://discourse.julialang.org/u/eldee)
#### Post date: [August 21, 2024, 7:05pm UTC](https://discourse.julialang.org/t/error-while-loading-serialized-bson/118408/2 "2024-08-21T19:05:37Z")
Hi, and welcome to the Julia community!
Your MWE works fine for me.
> **MWE output**
>
> ```julia-repl
> julia> using CUDA, Flux, BSON;
>
> julia> MyFunc(x1,x2,x3) = x1 + x1.*x2+ x1.*x3;
>
> julia> function create_DAConv_chain(fea_dim, in_channels, out_channels, kernel_size, stride, padding)
> out_len = Int(floor((fea_dim + 2 * padding - (kernel_size - 1) - 1) / stride + 1))
> conv_branch = Conv((kernel_size,), in_channels => out_channels, pad=padding, stride=stride)
> spatial_att_conv = Conv((kernel_size,), in_channels => 1, stride=2, pad=0)
> spatial_att_pool = MaxPool((kernel_size,), stride=2, pad=0)
> spatial_att_deconv = ConvTranspose((kernel_size,), 1 => 1, stride=2, pad=0)
> upsample = Upsample(:bilinear, size=(out_len))
> channel_att_fc1 = Dense(fea_dim, out_channels)
> channel_att_fc2 = Dense(in_channels, 1)
>
> return Parallel(MyFunc; a = Chain(
> conv_branch,
> ),
> b = Chain(
> spatial_att_conv,
> relu,
> spatial_att_pool,
> spatial_att_deconv,
> relu,
> upsample,
> x -> Flux.sigmoid.(x)
> ),
> c = Chain(
> channel_att_fc1,
> x -> Flux.tanh.(x),
> x -> permutedims(x, (2, 1, 3)),
> channel_att_fc2,
> x -> sum(x, dims=3),
> x -> Flux.sigmoid.(x),
> ))
>
> end;
>
> julia> model = create_DAConv_chain(16, 32, 32, 3, 1, 1)
> Parallel(
> MyFunc,
> a = Chain(
> Conv((3,), 32 => 32, pad=1), # 3_104 parameters
> ),
> b = Chain(
> Conv((3,), 32 => 1, stride=2), # 97 parameters
> NNlib.relu,
> MaxPool((3,), stride=2),
> ConvTranspose((3,), 1 => 1, stride=2), # 4 parameters
> NNlib.relu,
> Upsample(:bilinear, size = 16),
> var"#11#16"(),
> ),
> c = Chain(
> Dense(16 => 32), # 544 parameters
> var"#12#17"(),
> var"#13#18"(),
> Dense(32 => 1), # 33 parameters
> var"#14#19"(),
> var"#15#20"(),
> ),
> ) # Total: 10 arrays, 3_782 parameters, 16.320 KiB.
>
> julia> BSON.@save "test.bson" model
>
> julia> d2 = BSON.load("test.bson", @ __MODULE__ )
> Dict{Symbol, Any} with 1 entry:
> :model => Parallel(MyFunc, a = Chain(Conv((3,), 32 => 32, pad=1)), b = Chain(Conv((3,), 32 => 1, stride=2), relu, Max…
>
> julia> x = rand(16, 32, 32); d2[:model](x) ≈ model(x)
> true
>
> ```
> **versioninfo and st**
>
> ```julia-repl
> julia> versioninfo()
> Julia Version 1.10.4
> Commit 48d4fd4843 (2024-06-04 10:41 UTC)
> Build Info:
> Official https://julialang.org/ release
> Platform Info:
> OS: Windows (x86_64-w64-mingw32)
> CPU: 8 × Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
> WORD_SIZE: 64
> LIBM: libopenlibm
> LLVM: libLLVM-15.0.7 (ORCJIT, skylake)
> Threads: 8 default, 0 interactive, 4 GC (on 8 virtual cores)
> Environment:
> JULIA_NUM_THREADS = auto
>
> (jl_jLEJ1D) pkg> st
> Status `(...)\Temp\jl_jLEJ1D\Project.toml`
> [fbb218c0] BSON v0.3.9
> [052768ef] CUDA v5.4.3
> [587475ba] Flux v0.14.19
>
> ```
> [@Emma\_B](#):
>
> It used to work fine, even with different sessions, but yesterday it returned the error and I don’t know why. I may have updated a package without knowing it, but not to my knowledge.
You could try to work in a temporary environment with only the bare minimum of packages (as above): `(@v1.9) pkg> activate --temp`.
> [@Emma\_B](#):
>
> `cnnPath = "/home/ebothere/Models/16_Aug_2024_10_19_06_454.bson"`
Do you only get your error for this specific bson file, or also for the ones produced from your MWE (or my interpretation thereof)?
---
### Author:  [@Emma\_B](https://discourse.julialang.org/u/Emma_B)
#### Post date: [August 21, 2024, 7:32pm UTC](https://discourse.julialang.org/t/error-while-loading-serialized-bson/118408/3 "2024-08-21T19:32:45Z")
Hi ! Thank you for your answer !
Yes, the issue is definitely due to my file. Is there any way I can force open/ignore this error to access at least some of the values contained in this file ?
---
### Author:  [@GunnarFarneback](https://discourse.julialang.org/u/GunnarFarneback)
#### Post date: [August 21, 2024, 9:47pm UTC](https://discourse.julialang.org/t/error-while-loading-serialized-bson/118408/4 "2024-08-21T21:47:24Z")
You can try to see if `BSON.parse(filename)` gives you something useful.
---
### Author:  [@Emma\_B](https://discourse.julialang.org/u/Emma_B)
#### Post date: [August 22, 2024, 7:10am UTC](https://discourse.julialang.org/t/error-while-loading-serialized-bson/118408/5 "2024-08-22T07:10:52Z")
The issue is likely due to the CUDA library. When loading on a machine without GPU, no error occurred. I don’t really know why, but I was able to retrieve my network ! Thank you for your help !