Failure to add package Gmsh

New to Julia
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1

I fail to install package Gmsh. After Pkg.add(“Gmsh”), using Gmsh and Pkg.build(“Gmsh”) produce the errors below. I am an administrator on my Windows 10 environment running Julia 1.2 yet Pkg.build command seems to think otherwise: “On Windows, creating file symlinks requires Administrator privileges”. Any help appreciated. -Eric

ERROR: LoadError: Gmsh not installed properly, run Pkg.build(“Gmsh”), restart Julia and try again
Stacktrace:
[1] error(::String) at .\error.jl:33
[2] top-level scope at C:\Users\emichiel.julia\packages\Gmsh\eZVOZ\src\Gmsh.jl:6
[3] include at .\boot.jl:328 [inlined]
[4] include_relative(::Module, ::String) at .\loading.jl:1094
[5] include(::Module, ::String) at .\Base.jl:31
[6] top-level scope at none:2
[7] eval at .\boot.jl:330 [inlined]
[8] eval(::Expr) at .\client.jl:432
[9] top-level scope at .\none:3
in expression starting at C:\Users\emichiel.julia\packages\Gmsh\eZVOZ\src\Gmsh.jl:5

julia> Pkg.build(“Gmsh”)
Building Gmsh → C:\Users\emichiel\.julia\packages\Gmsh\eZVOZ\deps\build.log
┌ Error: Error building Gmsh:
│ ┌ Warning: On Windows, creating file symlinks requires Administrator privileges
│ └ @ Base.Filesystem file.jl:797
│ ERROR: LoadError: Your platform (“x86_64-w64-mingw32”, parsed as “x86_64-w64-mingw32-gcc7-cxx11”) is not supported by this package!
│ Stacktrace:
│ [1] error(::String) at .\error.jl:33
│ [2] top-level scope at C:\Users\emichiel.julia\packages\Gmsh\eZVOZ\deps\build.jl:26
│ [3] include at .\boot.jl:328 [inlined]
│ [4] include_relative(::Module, ::String) at .\loading.jl:1094
│ [5] include(::Module, ::String) at .\Base.jl:31
│ [6] include(::String) at .\client.jl:431
│ [7] top-level scope at none:5
│ in expression starting at C:\Users\emichiel.julia\packages\Gmsh\eZVOZ\deps\build.jl:22
│ caused by [exception 1]
│ IOError: symlink: operation not permitted (EPERM)
│ Stacktrace:
│ [1] uv_error at .\libuv.jl:90 [inlined]
│ [2] symlink(::String, ::String) at .\file.jl:800
│ [3] probe_symlink_creation(::String) at C:\Users\emichiel.julia\packages\BinaryProvider\gnxnM\src\PlatformEngines.jl:121
│ [4] #probe_platform_engines!#30(::Bool, ::typeof(BinaryProvider.probe_platform_engines!)) at C:\Users\emichiel.julia\packages\BinaryProvider\gnxnM\src\PlatformEngines.jl:175
│ [5] probe_platform_engines! at C:\Users\emichiel.julia\packages\BinaryProvider\gnxnM\src\PlatformEngines.jl:169 [inlined]
│ [6] init() at C:\Users\emichiel.julia\packages\BinaryProvider\gnxnM\src\BinaryProvider.jl:28
│ [7] _include_from_serialized(::String, ::Array{Any,1}) at .\loading.jl:685
│ [8] _require_search_from_serialized(::Base.PkgId, ::String) at .\loading.jl:765
│ [9] _require(::Base.PkgId) at .\loading.jl:990
│ [10] require(::Base.PkgId) at .\loading.jl:911
│ [11] require(::Module, ::Symbol) at .\loading.jl:906
│ [12] include at .\boot.jl:328 [inlined]
│ [13] include_relative(::Module, ::String) at .\loading.jl:1094
│ [14] include(::Module, ::String) at .\Base.jl:31
│ [15] include(::String) at .\client.jl:431
│ [16] top-level scope at none:5
└ @ Pkg.Operations C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.2\Pkg\src\backwards_compatible_isolation.jl:647
false

2

There seems to be an issue with your C/C++ environment. Look at ERROR: LoadError: Your platform (“x86_64-w64-mingw32”, parsed as “x86_64-w64-mingw32-gcc7-cxx11”) is not supported by this package!

3

Thanks. I would like to create fairly simple 2D triangular meshes for a finite element code. Are there other Julia packages that you recommend?

4

Check out FinEtools. It can do a bit. Targe2.jl might also be helpful.

5

It seems that the Gmsh package for Julia does not support a windows version:
….julia\packages\Gmsh\eZVOZ\deps\build.jl

download_info = Dict(
    MacOS(:x86_64) => ("$bin_prefix/gmsh.v4.4.1.x86_64-apple-darwin14.tar.gz", "a29d761a6826bbca16e500b195c1ddd22487fd62ae8be99930e3755a1e170c33"),
    Linux(:x86_64, libc=:glibc) => ("$bin_prefix/gmsh.v4.4.1.x86_64-linux-gnu.tar.gz", "f9bb150e70877ad1c2da1edae697f5275776ffcff9c682f666d58f032c87ae89"),
)

But you can download the gmsh SDK:
http://gmsh.info/bin/Windows/gmsh-4.4.1-Windows64-sdk.zip
Unpack the Zip file to some folder and open the Julia REPL:

julia> include(raw"d:\YOUR_PATH_TO\gmsh-git-Windows64-sdk\lib\gmsh.jl")
Main.gmsh

julia> gmsh.initialize(ARGS)

julia> gmsh.model.add("sphere_cut")

julia> R = 1
1

julia> R1 = 0.95
0.95

julia> sph = gmsh.model.occ.addSphere(0,0,0, R, -1, 0, pi/2, pi/2)
1

julia> b1 = gmsh.model.occ.addBox(R1,0,0, R,R,R)
2

julia> b2 = gmsh.model.occ.addBox(0,R1,0, R,R,R)
3

julia> b3 = gmsh.model.occ.addBox(0,0,R1, R,R,R)
4

julia> gmsh.model.occ.cut([(3,sph)], [(3,b1), (3,b2), (3,b3)])
(Tuple{Int32,Int32}[(3, 1)], Array{Tuple{Int32,Int32},1}[[(3, 1)], [], [], []])

julia> gmsh.model.occ.synchronize()

julia>

julia> gmsh.model.removeEntities([(3,sph)])

julia> gmsh.model.removeEntities([(2,2), (2,4), (2,6)], true)

julia> gmsh.fltk.run()

The last command opens the gmsh GUI with the 3D sphere model.
The commands are taken from file
d:\YOUR_PATH_TO\gmsh-git-Windows64-sdk\share\doc\gmsh\demos\api\spherical_surf.jl

2 Likes
6

And there is something which may also help:
https://github.com/JuliaFEM/Gmsh.jl/issues/4

1 Like
7

THANKS. This worked.
I’m afraid the “directly download Gmsh SDK” route is beyond my grasp…

1 Like
8

Has a new method for handling this issue on windows come about in the past year? I was able to bypass the issue by using the “include…” method, but it would be nice if something like “] add Gmsh” just worked.

I’m considering using Julia and gmsh for some small projects, but I would like my colleagues to be able easily reproduce code.

Any help is appreciated.

9

Now Gmsh 4.10 was compiled with BinaryBuilder.jl on all supported platforms (windows included), with open cascade and FLTK, and is available in the gmsh_jll package. So :

]add gmsh_jll
using gmsh_jll
include(gmsh_jll.gmsh_api)

should do what you wanted.

10

I am currently unable to install simultaneously Gmsh.jl version 0.3 and MUMPS.jl version 1.4.

The problem is the dependency on SCOTCH_jll.jl:

  • MUMPS@1.4 requires SCOTCH_jll@7.0.4 (this is specified in the compat section of the file project.toml of MUMPS_jll.jl)
  • Gmsh@0.3 requires MMG_jll.jl version 5.6 and, when installing MMG_jll@5.6, Pkg downgrades SCOTCH_jll to version 6.1.3 (I don’t understand why since the version of SCOTCH_jll is not specified in the project.toml file of MGG_jll).

Does anyone have a solution?

1 Like