Using PyPlot .. ERROR: InitError: PyError .. matplotlib could not be found by pyimport

After installation of Julia 1.0.0 on Windows 10, and installation of anaconda python,
in Julia REPL the following causes error:

using Pkg


using PyPlot

The full log and error is………………………………….

  _       _ _(_)_     |  Documentation:
 (_)     | (_) (_)    |
  _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
 | | | | | | |/ _` |  |
 | | |_| | | | (_| |  |  Version 1.0.0 (2018-08-08)
_/ |\__'_|_|_|\__'_|  |  Official release
|__/                   |

julia> using Pkg

julia> Pkg.add("PyPlot")
 Updating registry at `C:\Users\douglaskbell\.julia\registries\General`
 Updating git-repo ``
Resolving package versions...
 Updating `C:\Users\douglaskbell\.julia\environments\v1.0\Project.toml`
[no changes]
 Updating `C:\Users\douglaskbell\.julia\environments\v1.0\Manifest.toml`
[no changes]

julia> using PyPlot
[ Info: Installing matplotlib via the Conda matplotlib package...
[ Info: Running `conda install -y matplotlib` in root environment
Solving environment: done

# All requested packages already installed.

ERROR: InitError: PyError (PyImport_ImportModule

The Python package matplotlib could not be found by pyimport. Usually this means
that you did not install matplotlib in the Python version being used by PyCall.

Unless you have a compelling reason to use the separate Anaconda installation, the party line is to use Conda.jl to manage the Python installation for Julia. All you need to do is to add ENV["PYTHON"] = "" to your .julia/config/startup.jl file. The full instructions are here.

(From the instructions, it is not clear to me if PyCall will search for an already installed Python before installing its own.)

I don’t see any wrong.

in V1.0, on my pc, it work fine, its seting is:

v1.0) pkg> status
Status ~/.julia/environments/v1.0/Project.toml
[34da2185] Compat v1.1.0
[a93c6f00] DataFrames v0.13.1
[31c24e10] Distributions v0.16.2
[7073ff75] IJulia v1.10.0
[b964fa9f] LaTeXStrings v1.0.2
[91a5bcdd] Plots v0.20.1
[438e738f] PyCall v1.18.3
[d330b81b] PyPlot v2.6.2
[f2b01f46] Roots v0.7.2
[37e2e46d] LinearAlgebra
[9a3f8284] Random


julia> using PyPlot