# LoadError using julia

**URL:** https://discourse.julialang.org/t/loaderror-using-julia/8245
**Category:** New to Julia
**Created:** [January 9, 2018, 12:22pm UTC](https://discourse.julialang.org/t/loaderror-using-julia/8245 "2018-01-09T12:22:43Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![nassim](https://avatars.discourse-cdn.com/v4/letter/n/65b543/32.png) [@nassim](https://discourse.julialang.org/u/nassim)
#### Post date: [January 9, 2018, 12:22pm UTC](https://discourse.julialang.org/t/loaderror-using-julia/8245/1 "2018-01-09T12:22:43Z")

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please, who can help me i got this issue using julia 0.5 in jupyter

UndefVarError: cf not defined

in include\_string(::String, ::String) at ./loading.jl:441  
in include\_string(::String, ::String) at /Applications/Julia-0.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?

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### Author: ![carstenbauer](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/carstenbauer/32/4981_2.png) [@carstenbauer](https://discourse.julialang.org/u/carstenbauer)
#### Post date: [January 9, 2018, 12:28pm UTC](https://discourse.julialang.org/t/loaderror-using-julia/8245/2 "2018-01-09T12:28:27Z")

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Seems like `cf` is simply not defined? Also, [how to quote code with backticks](https://discourse.julialang.org/t/psa-how-to-quote-code-with-backticks/7530).