Error when building SymEngine, saying that "conda is doing something else" about symengine.jl

[musm]

I get problem on windows with this package. can we please not redownload all of conda if it is already installed. Please something like PyPlots where it uses the system conda installation.

[Datseris]

Let me also say that this is the first time I have encountered an error that said "conda is doing something else". It hasn't happened to me with any other package so far. (as far as I can remember!)

[isuruf]

Can you try below as the error message suggests?

using Conda
Conda.runconda(`clean --lock`, "C:\\Users\\migos\\.julia\\v0.6\\SymEngine\\deps\\usr")

Lock file is there probably because a Conda command was interrupted or something like that.

[certik]

@Datseris sorry about that, I haven't encountered this error either. Let us know if @isuruf's suggestion fixes it.

[Datseris]

Tried to run the suggestion, got this:

julia> using Conda

julia> Conda.runconda(`clean --lock`, "C:\\Users\\migos\\.julia\\v0.5\\SymEngine\\deps\\usr")
ERROR: ArgumentError: Path to conda environment is not valid.
 in prefix at C:\Users\migos\.julia\v0.5\Conda\src\Conda.jl:60 [inlined]
 in _install_conda(::String, ::Bool) at C:\Users\migos\.julia\v0.5\Conda\src\Conda.jl:202
 in runconda(::Cmd, ::String) at C:\Users\migos\.julia\v0.5\Conda\src\Conda.jl:130

[isuruf]

Sorry, that should have been just

using Conda
Conda.runconda(`clean --lock`)

[Datseris]

So, here is the thing. When I do my first package update, I get the error I describe in this post. After that, if I do again update, nothing goes wrong.
During this second update attempt, when nothing goes wrong, I tried the command:

julia> Conda.runconda(`clean --lock`)
removing: C:\Users\migos\.julia\v0.5\Conda\deps\usr\pkgs\.conda_lock-9344

But I don't know what to do now

[isuruf]

If nothing goes wrong on the second attempt, does using SymEngine work?

[Datseris]

Yes, it does work. There are no errors at least when using SymEngine, but I don't know any commands to run to see if it really works.

[isuruf]

Pkg.test("SymEngine") will test the package

[Datseris]

julia> Pkg.test("SymEngine")
INFO: Testing SymEngine
ERROR: LoadError: LoadError: error compiling _symbol: error compiling _symbol: could not load library "symengine"
The specified module could not be found.

 in include_from_node1(::String) at .\loading.jl:488 (repeats 2 times)
 in process_options(::Base.JLOptions) at .\client.jl:262
 in _start() at .\client.jl:318
while loading C:\Users\migos\.julia\v0.5\SymEngine\test\test-dense-matrix.jl, in expression starting on line 5
while loading C:\Users\migos\.julia\v0.5\SymEngine\test\runtests.jl, in expression starting on line 4
==================================================[ ERROR: SymEngine ]==================================================

failed process: Process(`'C:\Users\migos\AppData\Local\Julia-0.5.0\bin\julia' -Cx86-64 '-JC:\Users\migos\AppData\Local\Julia-0.5.0\lib\julia\sys.dll' --compile=yes --depwarn=yes --check-bounds=yes --code-coverage=none --color=yes --compilecache=yes 'C:\Users\migos\.julia\v0.5\SymEngine\test\runtests.jl'`, ProcessExited(1)) [1]

========================================================================================================================
ERROR: SymEngine had test errors
 in #test#61(::Bool, ::Function, ::Array{AbstractString,1}) at .\pkg\entry.jl:740
 in (::Base.Pkg.Entry.#kw##test)(::Array{Any,1}, ::Base.Pkg.Entry.#test, ::Array{AbstractString,1}) at .\<missing>:0
 in (::Base.Pkg.Dir.##2#3{Array{Any,1},Base.Pkg.Entry.#test,Tuple{Array{AbstractString,1}}})() at .\pkg\dir.jl:31
 in cd(::Base.Pkg.Dir.##2#3{Array{Any,1},Base.Pkg.Entry.#test,Tuple{Array{AbstractString,1}}}, ::String) at .\file.jl:48
 in #cd#1(::Array{Any,1}, ::Function, ::Function, ::Array{AbstractString,1}, ::Vararg{Array{AbstractString,1},N}) at .\pkg\dir.jl:31
 in (::Base.Pkg.Dir.#kw##cd)(::Array{Any,1}, ::Base.Pkg.Dir.#cd, ::Function, ::Array{AbstractString,1}, ::Vararg{Array{AbstractString,1},N}) at .\<missing>:0
 in #test#3(::Bool, ::Function, ::String, ::Vararg{String,N}) at .\pkg\pkg.jl:258
 in test(::String, ::Vararg{String,N}) at .\pkg\pkg.jl:258

[ChrisRackauckas]

You have ParameterizedFunctions, so just give the repo example a go:

f = @ode_def LotkaVolterra begin
  dx = a*x - b*x*y
  dy = -c*y + d*x*y
end a=>1.5 b=>1 c=3 d=1

It should build everything but throw a warning that it cannot invert the Hessian (which is mathematically correct)

[Datseris]

Nope, not even that:

julia> f = @ode_def LotkaVolterra begin
         dx = a*x - b*x*y
         dy = -c*y + d*x*y
       end a=>1.5 b=>1 c=3 d=1
ERROR: error compiling #ode_def_opts#1: error compiling symbolize: error compiling symbols: error compiling _symbol: could not load library "symengine"
The specified module could not be found.

 in ode_def_opts(::Symbol, ::Dict{Symbol,Bool}, ::Expr, ::Expr, ::Vararg{Expr,N}) at C:\Users\migos\.julia\v0.5\ParameterizedFunctions\src\ode_def_opts.jl:5

*yes I know its the same error

[isuruf]

@musm, Conda.jl can be configured to use a system conda installation. https://github.com/JuliaPy/Conda.jl#using-an-already-existing-conda-installation

[ChrisRackauckas]

This issue could probably be closed, right?

[ChrisRackauckas]

Bumping the closing? I thought @Datseris 's problems were fixed.

[isuruf]

Right, now that we are not using Conda on windows, this should be fixed

[Datseris]

Right now I don't have any problems, that is true. Pkg.update() works fine (it does that REALLY weird thing where it installs a huge amount of stuff everytime).