# Issues Building RCall atom

**URL:** <https://discourse.julialang.org/t/issues-building-rcall-atom/49714>\
**Category:** General Usage\
**Tags:** package\
**Created:** [November 7, 2020, 12:52am UTC](https://discourse.julialang.org/t/issues-building-rcall-atom/49714 "2020-11-07T00:52:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![atparedes](https://avatars.discourse-cdn.com/v4/letter/a/b5e925/32.png) [@atparedes](https://discourse.julialang.org/u/atparedes)\
**Post date:** [November 7, 2020, 12:52am UTC](https://discourse.julialang.org/t/issues-building-rcall-atom/49714/1 "2020-11-07T00:52:34Z")

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New to Julia: I need to use R in Julia to run several simulation studies, and I am having problems using RCall. I want to use R to sample from a skew-normal distribution. Here is the massage - which hopefully it is clear to experienced users and developers:

Error building `RCall`:  
│ ERROR: could not load library “C:\Users\USER\AppData\Local\Continuum\Anaconda3\R\bin\x64\R.dll”  
│ The specified module could not be found.  
│ ERROR: LoadError: Try adding C:\Users\USER\AppData\Local\Continuum\Anaconda3\R\bin\x64 to the “PATH” environmental variable and restarting Julia.  
│ Stacktrace:  
│ [1] error(::String) at .\error.jl:33  
│ [2] validate\_libR(::String) at C:\Users\USER.julia\packages\RCall\AEOQ7\deps\setup.jl:24  
│ [3] locate\_libR(::SubString{String}) at C:\Users\USER.julia\packages\RCall\AEOQ7\deps\setup.jl:43  
│ [4] top-level scope at C:\Users\USER.julia\packages\RCall\AEOQ7\deps\build.jl:58  
│ [5] include(::String) at .\client.jl:457  
│ [6] top-level scope at none:5  
│ in expression starting at C:\Users\USER.julia\packages\RCall\AEOQ7\deps\build.jl:11  
│ caused by [exception 1]  
│ could not load library “C:\Users\USER\AppData\Local\Continuum\Anaconda3\R\bin\x64\R.dll”  
│ The specified module could not be found.  
│ Stacktrace:  
│ [1] dlopen(::String, ::UInt32; throw\_error::Bool) at D:\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.5\Libdl\src\Libdl.jl:109  
│ [2] dlopen at D:\buildbot\worker\package\_win64\build\usr\share\julia\stdlib\v1.5\Libdl\src\Libdl.jl:109 [inlined] (repeats 2 times)  
│ [3] validate\_libR(::String) at C:\Users\USER.julia\packages\RCall\AEOQ7\deps\setup.jl:16  
│ [4] locate\_libR(::SubString{String}) at C:\Users\USER.julia\packages\RCall\AEOQ7\deps\setup.jl:43  
│ [5] top-level scope at C:\Users\USER.julia\packages\RCall\AEOQ7\deps\build.jl:58  
│ [6] include(::String) at .\client.jl:457  
│ [7] top-level scope at none:5  
└ @ Pkg.Operations D:\buildbot\worker\package\_win64\build\usr\share\juli

Any help will be greatly appreciated.

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**Author:** ![dmbates](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dmbates/32/44_2.png) [@dmbates](https://discourse.julialang.org/u/dmbates)\
**Post date:** [November 7, 2020, 4:39pm UTC](https://discourse.julialang.org/t/issues-building-rcall-atom/49714/2 "2020-11-07T16:39:50Z")

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The installation of RCall is trying to find a version of R installed with conda. It is generally easier to point it to a local, plain installation of R if you have one. See the [installation instructions](https://juliainterop.github.io/RCall.jl/dev/installation/) for RCall.

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**Author:** ![atparedes](https://avatars.discourse-cdn.com/v4/letter/a/b5e925/32.png) [@atparedes](https://discourse.julialang.org/u/atparedes)\
**Post date:** [November 8, 2020, 2:58am UTC](https://discourse.julialang.org/t/issues-building-rcall-atom/49714/3 "2020-11-08T02:58:07Z")

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Wonderful. Thank you.