# Failure to add IJulia in Julia 1.50

**URL:** <https://discourse.julialang.org/t/failure-to-add-ijulia-in-julia-1-50/45321>\
**Category:** Tooling\
**Tags:** question, package\
**Created:** [August 21, 2020, 1:57pm UTC](https://discourse.julialang.org/t/failure-to-add-ijulia-in-julia-1-50/45321 "2020-08-21T13:57:42Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ramiro\_Bravo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ramiro_bravo/32/8918_2.png) [@Ramiro\_Bravo](https://discourse.julialang.org/u/Ramiro_Bravo)\
**Post date:** [August 21, 2020, 1:57pm UTC](https://discourse.julialang.org/t/failure-to-add-ijulia-in-julia-1-50/45321/1 "2020-08-21T13:57:43Z")

</div>

I am trying to add Jupyterlab to my installation of Julia 1.50. When I type add IJulia inside the package manager, the installation process crashes Julia and takes me back to the Ubuntu shell. The final message is “Illegal instruction (core dumped).” I never had this problem with any of the previous versions. Any ideas?

---

<div class="post-metadata">

**Author:** ![ImreSamu](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/imresamu/32/20677_2.png) [@ImreSamu](https://discourse.julialang.org/u/ImreSamu)\
**Post date:** [August 21, 2020, 4:35pm UTC](https://discourse.julialang.org/t/failure-to-add-ijulia-in-julia-1-50/45321/2 "2020-08-21T16:35:01Z")

</div>

> [@Ramiro\_Bravo](#):
>
> “Illegal instruction (core dumped).”

Please, share your CPU info

- `cat /proc/cpuinfo | grep "model name"`

there are some documented problems with older CPU ( like ` AMD Athlon(tm) II X2`)

- [Julia 1.5.0 Illegal instruction using official binary on AMD Athlon II X2 255 Processor with Debian Buster · Issue #36934 · JuliaLang/julia · GitHub](https://github.com/JuliaLang/julia/issues/36934)