CapAndHomalg, HomalgProject, Julia and Ubuntu 20.04

[HereAround]

I open this issue on behalf of F. Patrick Rabarison. Here is his original (email) message:

I'm a new user in julia and I have some trouble while using both the packages CapAndHomalg and HomalgProject. Maybe you could be any help? I use ubuntu 20.04 and here I send for instance what I got when using the package HomalgProject.

julia> using Pkg
julia> using HomalgProject
[ Info: Precompiling HomalgProject [50bd374c-87b5-11e9-015a-2febe71398bd]
[ Info: Set up gaproot at /home/rabarison/.julia/packages/GAP/wIHfC/gaproot/v1.4
ERROR: LoadError: could not load library "libjulia"
libjulia.so: cannot open shared object file: No such file or directory
Stacktrace:
[1] dlopen(::String, ::UInt32; throw_error::Bool) at
/build/julia-98cBbp/julia-1.4.1+dfsg/usr/share/julia/stdlib/v1.4/Libdl/src/Libdl.jl:109
[2] dlopen at /build/julia-98cBbp/julia-1.4.1+dfsg/usr/share/julia/stdlib/v1.4/Libdl/src/Libdl.jl:109
[inlined] (repeats 2 times)
[3] dlpath(::String) at
/build/julia-98cBbp/julia-1.4.1+dfsg/usr/share/julia/stdlib/v1.4/Libdl/src/Libdl.jl:232
[4] libDir() at ./string:32
[5] ldflags at ./string:52 [inlined]
[6] regenerate_gaproot() at
/home/rabarison/.julia/packages/GAP/wIHfC/src/setup.jl:89
[7] top-level scope at /home/rabarison/.julia/packages/GAP/wIHfC/src/GAP.jl:12
[8] include(::Module, ::String) at ./Base.jl:377
[9] top-level scope at none:2
[10] eval at ./boot.jl:331 [inlined]
[11] eval(::Expr) at ./client.jl:449
[12] top-level scope at ./none:3
in expression starting at
/home/rabarison/.julia/packages/GAP/wIHfC/src/GAP.jl:12
ERROR: LoadError: Failed to precompile GAP
[c863536a-3901-11e9-33e7-d5cd0df7b904] to
/home/rabarison/.julia/compiled/v1.4/GAP/YqHod_aVfVz.ji.
Stacktrace:
[1] error(::String) at ./error.jl:33
[2] compilecache(::Base.PkgId, ::String) at ./loading.jl:1272
[3] _require(::Base.PkgId) at ./loading.jl:1029
[4] require(::Base.PkgId) at ./loading.jl:927
[5] require(::Module, ::Symbol) at ./loading.jl:922
[6] include(::Module, ::String) at ./Base.jl:377
[7] top-level scope at none:2
[8] eval at ./boot.jl:331 [inlined]
[9] eval(::Expr) at ./client.jl:449
[10] top-level scope at ./none:3
in expression starting at
/home/rabarison/.julia/packages/HomalgProject/tWdpO/src/HomalgProject.jl:65
ERROR: Failed to precompile HomalgProject
[50bd374c-87b5-11e9-015a-2febe71398bd] to
/home/rabarison/.julia/compiled/v1.4/HomalgProject/z4ehp_aVfVz.ji.
Stacktrace:
[1] error(::String) at ./error.jl:33
[2] compilecache(::Base.PkgId, ::String) at ./loading.jl:1272
[3] _require(::Base.PkgId) at ./loading.jl:1029
[4] require(::Base.PkgId) at ./loading.jl:927
[5] require(::Module, ::Symbol) at ./loading.jl:922

[mohamed-barakat]

The issue was resolved by Fabian who pointed Patrick to our new installation page:

https://homalg-project.github.io/docs/installation

The step he was missing was Step 1:

https://homalg-project.github.io/docs/installation#step-1-install-julia

This issue can be closed.