raise ImportError(msg)
Stacktrace:
[1] pyimport(name::String)
@ PyCall ~/.julia/packages/PyCall/7a7w0/src/PyCall.jl:550
[2] pyimport_conda(modulename::String, condapkg::String, channel::String)
@ PyCall ~/.julia/packages/PyCall/7a7w0/src/PyCall.jl:708
[3] pyimport_conda
@ ~/.julia/packages/PyCall/7a7w0/src/PyCall.jl:707 [inlined]
[4] __init__ ()
@ PyPlot ~/.julia/packages/PyPlot/XaELc/src/init.jl:185
[5] _include_from_serialized(path::String, depmods::Vector{Any})
@ Base ./loading.jl:768
[6] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String)
@ Base ./loading.jl:854
[7] _require(pkg::Base.PkgId)
@ Base ./loading.jl:1097
[8] require(uuidkey::Base.PkgId)
@ Base ./loading.jl:1013
[9] require(into::Module, mod::Symbol)
@ Base ./loading.jl:997
during initialization of module PyPlot
```
---
### Author:  [@Raymond](https://discourse.julialang.org/u/Raymond)
#### Post date: [May 26, 2022, 7:48pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/7 "2022-05-26T19:48:20Z")
It seems not work for me and I have installed matplotlib.
```julia
✦ ➜ python
Python 3.10.4 (v3.10.4:9d38120e33, Mar 23 2022, 17:29:05) [Clang 13.0.0 (clang-1300.0.29.30)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>>
```
---
### Author:  [@stevengj](https://discourse.julialang.org/u/stevengj)
#### Post date: [May 26, 2022, 8:00pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/8 "2022-05-26T20:00:20Z")
> [@Raymond](#):
>
> ```julia
> The Python package matplotlib could not be imported by pyimport. Usually this means
> that you did not install matplotlib in the Python version being used by PyCall.
>
> PyCall is currently configured to use the Python version at:
>
> /Library/Frameworks/Python.framework/Versions/3.10/bin/python3
>
> ```
This error means just what it says. If you run `python3` and do `import matplotlib` in Python, does it work?
By default, on a Mac, PyCall and PyPlot normally install their own Python distro via conda-forge, and then will install Matplotlib for you. You must have overridden this by setting the `PYTHON` environment variable manually, which is really only for people who know what they are doing.
> [@ctkelley](#):
>
> Try adding
>
> ```julia
> ENV["PYTHON"]=""
>
> ```
>
> to your startup.jl
You don’t need to do it in your `startup.jl`, and by itself this will do nothing because it only affects _building_ PyCall. You should instead do:
```julia
julia> ENV["PYTHON"]=""
pkg> build PyCall
```
and then re-start Julia.
> [@Krastanov](#):
>
> Using that pre-installed python has always been deeply problematic
That’s why PyCall defaults to using Conda.jl to install its own Python on Mac and Windows.
---
### Author:  [@stevengj](https://discourse.julialang.org/u/stevengj)
#### Post date: [May 26, 2022, 8:01pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/9 "2022-05-26T20:01:40Z")
> [@Raymond](#):
>
> ```julia
> julia> ENV["PYTHON"]="/Library/Frameworks/Python.framework/Versions/3.10/bin/python3"
> "/Library/Frameworks/Python.framework/Versions/3.10/bin/python3"
>
> ```
_Don’t_ do this — this is the Python that is not working. Set `ENV["PYTHON"]=""` so that Julia can install its own Python.
And you need to restart Julia after rebuilding PyCall.
---
### Author:  [@stevengj](https://discourse.julialang.org/u/stevengj)
#### Post date: [May 26, 2022, 8:02pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/10 "2022-05-26T20:02:29Z")
> [@Raymond](#):
>
> It seems not work for me and I have installed matplotlib.
>
> ```julia
> ✦ ➜ python
>
> ```
Are you sure this is the same `python` executable? (Type `which python` to see which Python you are running.)
---
### Author:  [@Raymond](https://discourse.julialang.org/u/Raymond)
#### Post date: [May 26, 2022, 8:05pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/11 "2022-05-26T20:05:48Z")
```julia
✦2 ➜ which python
python: aliased to /Library/Frameworks/Python.framework/Versions/3.10/bin/python3.10
(base)
```
---
### Author:  [@Krastanov](https://discourse.julialang.org/u/Krastanov)
#### Post date: [May 26, 2022, 8:10pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/12 "2022-05-26T20:10:21Z")
> [@Raymond](#):
>
> ```julia
> ENV["PYTHON"]="/Library/Frameworks/Python.framework/Versions/3.10/bin/python3"
> "/Library/Frameworks/Python.framework/Versions/3.10/bin/python3"
>
> ```
As was already mentioned above, this is the opposite of what I suggested. Avoid using your system’s python install for non-sysadmin tasks, as it would inevitably lead to clashes, mismatched versions, and general unreliability. With enough perseverance I am sure you can make it work even with the pre-installed system’s python, but you probably would not get much help from the community as it is one of the ways we specifically try to avoid.
---
### Author:  [@Raymond](https://discourse.julialang.org/u/Raymond)
#### Post date: [May 26, 2022, 8:12pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/13 "2022-05-26T20:12:06Z")
Thanks for all your help. After I set `ENV["PYTHON"] = ""`,now it works well.
Thanks very much. @ctkelley @Krastanov @stevengj
---
### Author:  [@Raymond](https://discourse.julialang.org/u/Raymond)
#### Post date: [May 26, 2022, 8:16pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/14 "2022-05-26T20:16:09Z")
@Krastanov @stevengj @ctkelley I have another problem when using `RCall`. Can you help me to solve this problem?
```julia
julia> using RCall
[Info: Precompiling RCall [6f49c342-dc21-5d91-9882-a32aef131414]
WARNING: Method definition Type##kw(Any, Type{Base.MPFR.BigFloat}, Base.Irrational{:invπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition Type##kw(Any, Type{Base.MPFR.BigFloat}, Base.Irrational{:twoinvπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:invsqrt2}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:sqrt4π}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:sqrt2π}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:fourinvπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:loghalf}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:logtwo}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:log2π}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:inv4π}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:twoπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:sqrtπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:sqrt3}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:sqrthalfπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:invsqrt2π}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:inv2π}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:logπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:log4π}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:halfπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:fourπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:quartπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:sqrt2}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:invπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float32})(Base.Irrational{:twoinvπ}) in module StatsFuns at irrationals.jl:192 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:invsqrt2}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:log2π}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:sqrt4π}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:sqrt2π}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:fourinvπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:logtwo}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants at irrationals.jl:175.
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:inv4π}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:twoπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:sqrtπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:sqrt3}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:sqrthalfπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:invsqrt2π}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:inv2π}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:logπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:log4π}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:halfπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:fourπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:quartπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:sqrt2}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:loghalf}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:invπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Base.MPFR.BigFloat})(Base.Irrational{:twoinvπ}) in module StatsFuns at irrationals.jl:182 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:invsqrt2}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:sqrt4π}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:sqrt2π}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:fourinvπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:loghalf}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:logtwo}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:log2π}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:inv4π}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:twoπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:sqrtπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:sqrt3}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:sqrthalfπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:invsqrt2π}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:inv2π}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:logπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:log4π}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:halfπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:fourπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:quartπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:sqrt2}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:invπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
WARNING: Method definition (::Type{Float64})(Base.Irrational{:twoinvπ}) in module StatsFuns at irrationals.jl:191 overwritten in module IrrationalConstants on the same line (check for duplicate calls to `include`).
**incremental compilation may be fatally broken for this module**
ERROR: LoadError: RCall not properly installed. Please run Pkg.build("RCall")
Stacktrace:
[1] error(s::String)
@ Base ./error.jl:33
[2] top-level scope
@ ~/.julia/packages/RCall/6kphM/src/RCall.jl:36
[3] include
@ ./Base.jl:418 [inlined]
[4] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::Nothing)
@ Base ./loading.jl:1318
[5] top-level scope
@ none:1
[6] eval
@ ./boot.jl:373 [inlined]
[7] eval(x::Expr)
@ Base.MainInclude ./client.jl:453
[8] top-level scope
@ none:1
in expression starting at /Users/zhangdeliang/.julia/packages/RCall/6kphM/src/RCall.jl:2
ERROR: Failed to precompile RCall [6f49c342-dc21-5d91-9882-a32aef131414] to /Users/zhangdeliang/.julia/compiled/v1.7/RCall/jl_QExoBD.
Stacktrace:
[1] error(s::String)
@ Base ./error.jl:33
[2] compilecache(pkg::Base.PkgId, path::String, internal_stderr::IO, internal_stdout::IO, ignore_loaded_modules::Bool)
@ Base ./loading.jl:1466
[3] compilecache(pkg::Base.PkgId, path::String)
@ Base ./loading.jl:1410
[4] _require(pkg::Base.PkgId)
@ Base ./loading.jl:1120
[5] require(uuidkey::Base.PkgId)
@ Base ./loading.jl:1013
[6] require(into::Module, mod::Symbol)
@ Base ./loading.jl:997
julia> using Pkg
julia> Pkg.build("RCall")
Building Conda → `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/6e47d11ea2776bc5627421d59cdcc1296c058071/build.log`
Building RCall → `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/72fddd643785ec1f36581cbc3d288529b96e99a7/build.log`
ERROR: Error building `RCall`:
ERROR: could not load library "/Library/Frameworks/R.framework/Resources/lib/libR.dylib"
dlopen(/Library/Frameworks/R.framework/Resources/lib/libR.dylib, 0x0001): tried: '/Library/Frameworks/R.framework/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')), '/Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64'))
ERROR: LoadError: Try adding /Library/Frameworks/R.framework/Resources/lib to the "LD_LIBRARY_PATH" environmental variable and restarting Julia.
Stacktrace:
[1] error(s::String)
@ Base ./error.jl:33
[2] validate_libR(libR::String)
@ Main ~/.julia/packages/RCall/6kphM/deps/setup.jl:26
[3] locate_libR(Rhome::SubString{String})
@ Main ~/.julia/packages/RCall/6kphM/deps/setup.jl:43
[4] top-level scope
@ ~/.julia/packages/RCall/6kphM/deps/build.jl:58
[5] include(fname::String)
@ Base.MainInclude ./client.jl:451
[6] top-level scope
@ none:5
in expression starting at /Users/zhangdeliang/.julia/packages/RCall/6kphM/deps/build.jl:11
caused by: could not load library "/Library/Frameworks/R.framework/Resources/lib/libR.dylib"
dlopen(/Library/Frameworks/R.framework/Resources/lib/libR.dylib, 0x0001): tried: '/Library/Frameworks/R.framework/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')), '/Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/lib/libR.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64'))
Stacktrace:
[1] dlopen(s::String, flags::UInt32; throw_error::Bool)
@ Base.Libc.Libdl ./libdl.jl:117
[2] dlopen (repeats 2 times)
@ ./libdl.jl:117 [inlined]
[3] validate_libR(libR::String)
@ Main ~/.julia/packages/RCall/6kphM/deps/setup.jl:16
[4] locate_libR(Rhome::SubString{String})
@ Main ~/.julia/packages/RCall/6kphM/deps/setup.jl:43
[5] top-level scope
@ ~/.julia/packages/RCall/6kphM/deps/build.jl:58
[6] include(fname::String)
@ Base.MainInclude ./client.jl:451
[7] top-level scope
@ none:5
Stacktrace:
[1] pkgerror(msg::String)
@ Pkg.Types /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Types.jl:68
[2] (::Pkg.Operations.var"#62#67"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec})()
@ Pkg.Operations /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:962
[3] withenv(::Pkg.Operations.var"#62#67"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec}, ::Pair{String, String}, ::Vararg{Pair{String}})
@ Base ./env.jl:172
[4] (::Pkg.Operations.var"#99#103"{String, Bool, Bool, Bool, Pkg.Operations.var"#62#67"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec}, Pkg.Types.PackageSpec})()
@ Pkg.Operations /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:1506
[5] with_temp_env(fn::Pkg.Operations.var"#99#103"{String, Bool, Bool, Bool, Pkg.Operations.var"#62#67"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec}, Pkg.Types.PackageSpec}, temp_env::String)
@ Pkg.Operations /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:1390
[6] (::Pkg.Operations.var"#98#102"{Bool, Bool, Bool, Pkg.Operations.var"#62#67"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec}, Pkg.Types.Context, Pkg.Types.PackageSpec, String, Pkg.Types.Project, String})(tmp::String)
@ Pkg.Operations /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:1469
[7] mktempdir(fn::Pkg.Operations.var"#98#102"{Bool, Bool, Bool, Pkg.Operations.var"#62#67"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec}, Pkg.Types.Context, Pkg.Types.PackageSpec, String, Pkg.Types.Project, String}, parent::String; prefix::String)
@ Base.Filesystem ./file.jl:750
[8] mktempdir(fn::Function, parent::String) (repeats 2 times)
@ Base.Filesystem ./file.jl:748
[9] sandbox(fn::Function, ctx::Pkg.Types.Context, target::Pkg.Types.PackageSpec, target_path::String, sandbox_path::String, sandbox_project_override::Pkg.Types.Project; force_latest_compatible_version::Bool, allow_earlier_backwards_compatible_versions::Bool, allow_reresolve::Bool)
@ Pkg.Operations /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:1435
[10] sandbox(fn::Function, ctx::Pkg.Types.Context, target::Pkg.Types.PackageSpec, target_path::String, sandbox_path::String, sandbox_project_override::Pkg.Types.Project)
@ Pkg.Operations /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:1432
[11] build_versions(ctx::Pkg.Types.Context, uuids::Set{Base.UUID}; verbose::Bool)
@ Pkg.Operations /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:943
[12] build(ctx::Pkg.Types.Context, uuids::Set{Base.UUID}, verbose::Bool)
@ Pkg.Operations /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/Operations.jl:822
[13] build(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}; verbose::Bool, kwargs::Base.Pairs{Symbol, Base.TTY, Tuple{Symbol}, NamedTuple{(:io,), Tuple{Base.TTY}}})
@ Pkg.API /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/API.jl:992
[14] build(pkgs::Vector{Pkg.Types.PackageSpec}; io::Base.TTY, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
@ Pkg.API /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/API.jl:149
[15] build(pkgs::Vector{Pkg.Types.PackageSpec})
@ Pkg.API /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/API.jl:144
[16] #build#99
@ /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/API.jl:142 [inlined]
[17] build
@ /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/API.jl:142 [inlined]
[18] #build#98
@ /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/API.jl:141 [inlined]
[19] build(pkg::String)
@ Pkg.API /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Pkg/src/API.jl:141
[20] top-level scope
@ REPL[8]:1
```
---
### Author:  [@Raymond](https://discourse.julialang.org/u/Raymond)
#### Post date: [May 26, 2022, 9:08pm UTC](https://discourse.julialang.org/t/question-about-pyplot/81738/15 "2022-05-26T21:08:31Z")
I have solved the problem. Thanks.
```julia
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:`R RHOME`/lib"
```