# Stackoverflow using backslash operator in Juno

**URL:** <https://discourse.julialang.org/t/stackoverflow-using-backslash-operator-in-juno/72755>\
**Category:** General Usage\
**Tags:** juno, linearalgebra\
**Created:** [December 8, 2021, 9:33am UTC](https://discourse.julialang.org/t/stackoverflow-using-backslash-operator-in-juno/72755 "2021-12-08T09:33:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sebastianmyrback](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sebastianmyrback/32/31748_2.png) [@sebastianmyrback](https://discourse.julialang.org/u/sebastianmyrback)\
**Post date:** [December 8, 2021, 9:33am UTC](https://discourse.julialang.org/t/stackoverflow-using-backslash-operator-in-juno/72755/1 "2021-12-08T09:33:52Z")

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Hi, I am using Juno for Julia 1.7 on macOS. I have a problem of receiving a Stackoverflow error when running a Julia script, which does not give an error when I type it in the REPL in Atom, nor the Julia terminal. I try to run the following script

```julia
using Random, LinearAlgebra

alpha = 1.0
m = 200

Random.seed!(0)
a=2.0
d=(a.^(0:(m-1)))
d[end-1]=d[end]*(0.99-1/(5*alpha))
B=randn(m,m)
A=B\(diagm(0=>d[:])*B)

```

The stack overflow seems to occur when the backslash operator is used. Is there anyone who has an idea how to fix this?

---

<div class="post-metadata">

**Author:** ![fredrikekre](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/fredrikekre/32/1688_2.png) [@fredrikekre](https://discourse.julialang.org/u/fredrikekre)\
**Post date:** [December 8, 2021, 9:39am UTC](https://discourse.julialang.org/t/stackoverflow-using-backslash-operator-in-juno/72755/2 "2021-12-08T09:39:13Z")

</div>

See e.g. [VS Code + stackoverflowerror](https://discourse.julialang.org/t/vs-code-stackoverflowerror/72704)

> Is there anyone who has an idea how to fix this?

Until either version 1.6.5 or 1.7.1 are released you can use 1.6.3.