# UndefVarError when using GeoRDD in julia

**URL:** <https://discourse.julialang.org/t/undefvarerror-when-using-geordd-in-julia/97159>\
**Category:** New to Julia\
**Tags:** question, package\
**Created:** [April 6, 2023, 9:07am UTC](https://discourse.julialang.org/t/undefvarerror-when-using-geordd-in-julia/97159 "2023-04-06T09:07:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nirong](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nirong/32/48859_2.png) [@nirong](https://discourse.julialang.org/u/nirong)\
**Post date:** [April 6, 2023, 9:07am UTC](https://discourse.julialang.org/t/undefvarerror-when-using-geordd-in-julia/97159/1 "2023-04-06T09:07:46Z")

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i am using julia1.8.5 version. when i run “Pkg.precompile()” in julia, there is a error “Failed to precompile GeoRDD”, specificly “LoadError: UndefVarError: xcoord not defined”. Then I run"]add [GitHub - maximerischard/GeoRDD.jl: Geographical Regression Discontinuity Designs using Gaussian Process Regression](https://github.com/maximerischard/GeoRDD.jl.git)’’ in julia, there is no error prompt.But when i run"using GeoRDD" ,there is again a error of “UndefVarError: xcoord not defined”. what should i do to deal with it. can anyone help？

 ![fig3](https://global.discourse-cdn.com/julialang/original/3X/1/1/11e7c24794e2bc8b50c9ceed3c78b432771af4b4.png)

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<div class="post-metadata">

**Author:** ![nirong](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nirong/32/48859_2.png) [@nirong](https://discourse.julialang.org/u/nirong)\
**Post date:** [April 6, 2023, 10:20am UTC](https://discourse.julialang.org/t/undefvarerror-when-using-geordd-in-julia/97159/2 "2023-04-06T10:20:51Z")

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![fig2](https://global.discourse-cdn.com/julialang/original/3X/0/a/0a834b053420de5cf3e21d7f6bf20b289802c6ff.png)