# ComponentArrays.jl crashes Julia in VSCode but not in REPL

**URL:** <https://discourse.julialang.org/t/componentarrays-jl-crashes-julia-in-vscode-but-not-in-repl/54667>\
**Category:** VS Code\
**Tags:** componentarrays\
**Created:** [February 5, 2021, 2:55am UTC](https://discourse.julialang.org/t/componentarrays-jl-crashes-julia-in-vscode-but-not-in-repl/54667 "2021-02-05T02:55:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![amrods](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/amrods/32/2543_2.png) [@amrods](https://discourse.julialang.org/u/amrods)\
**Post date:** [February 5, 2021, 2:55am UTC](https://discourse.julialang.org/t/componentarrays-jl-crashes-julia-in-vscode-but-not-in-repl/54667/1 "2021-02-05T02:55:20Z")

</div>

The following code crashes Julia in VSCode, but the REPL can run it with no problem.

```julia
using ComponentArrays

szE = 2
szG = 2
szA = 9
szK = 5
szT = 44
szB = 2
szZ = 2

costdata = Array{Float64}(undef, szT)
wwdata = Array{Float64}(undef, szG, szE, szA, szZ, szK, szT)
Xdata = Array{Int}(undef, szG, szE, szA, szT)
N19data = Array{Int}(undef, szG, szB, szE, szT-6)
Adata = Array{Float64}(undef, szT)
ω = Array{Float64}(undef, szG, szA, szT)
Mdata = Array{Int}(undef, szA, szA, szE, szE, szT)
Smdata = Array{Int}(undef, szA, szE, szT)
Sfdata = Array{Int}(undef, szA, szE, szT)
LLdata = Array{Float64}(undef, szG, szE, szA, szZ, szK, szT)
P_1data = Array{Float64}(undef, szK, szT-1)
edata = Array{Float64}(undef, szK, szT)

## block

data = ComponentArray(
    ww = wwdata,
    e = edata,
    P_1 = P_1data,
    X = Xdata,
    LL = LLdata,
    N19 = N19data,
    A = Adata,
    ω = ω,
    cost = costdata,
    M = Mdata,
    Sm = Smdata,
    Sf = Sfdata
)

println("success")

```

I suspect it has to do with memory use because if I comment out the line with `ww` in the definition of the ComponentArray the code runs without crashing. What could be happening?

I’m using Julia 1.5.3, VSCode 1.53.0 and ComponentArrays.jl 0.8.11.

EDIT: Github issue [here](https://github.com/jonniedie/ComponentArrays.jl/issues/59).