# Error in method definition: function Base.sub2ind must be explicated imported

**URL:** https://discourse.julialang.org/t/error-in-method-definition-function-base-sub2ind-must-be-explicated-imported/13133
**Category:** New to Julia
**Created:** [August 10, 2018, 12:34am UTC](https://discourse.julialang.org/t/error-in-method-definition-function-base-sub2ind-must-be-explicated-imported/13133 "2018-08-10T00:34:07Z")
**Posts on this page:** 1
**Showing post:** 9

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### Author: ![tkoolen](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tkoolen/32/1603_2.png) [@tkoolen](https://discourse.julialang.org/u/tkoolen)
#### Post date: [August 11, 2018, 4:45am UTC](https://discourse.julialang.org/t/error-in-method-definition-function-base-sub2ind-must-be-explicated-imported/13133/9 "2018-08-11T04:45:24Z")

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No. You’re using backticks now, which is good, but not in the right way. See [this post (again)](https://discourse.julialang.org/t/psa-how-to-quote-code-with-backticks/7530) for what it should look like and how to do it.

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