LinearSolve Load Error

[riskpressure]

When I attempt to add LinearSolve, or any of the packages from SciML, I get a load error. I first removed an older version of Julia from my computer, then downloaded the newest version, and attempted to add LinearSolve again, and got a similar load error.

LinearSolve [7ed4a6bd-45f5-4d41-b270-4a48e9bafcae]

Failed to precompile LinearSolve [7ed4a6bd-45f5-4d41-b270-4a48e9bafcae] to "C:\Users\arthu\.julia\compiled\v1.9\LinearSolve\jl_4C2D.tmp". ERROR: LoadError: InitError: could not load library "C:\Users\arthu.julia\artifacts\627190b3418f9b1cfbbf9b16afba530328670386\bin\mkl_core.2.dll" The specified module could not be found. Stacktrace: [1] dlopen(s::String, flags::UInt32; throw_error::Bool) @ Base.Libc.Libdl .\libdl.jl:117 [2] dlopen(s::String, flags::UInt32) @ Base.Libc.Libdl .\libdl.jl:116 [3] macro expansion @ C:\Users\arthu.julia\packages\JLLWrappers\pG9bm\src\products\library_generators.jl:63 [inlined] [4] init() @ MKL_jll C:\Users\arthu.julia\packages\MKL_jll\GxRJ5\src\wrappers\x86_64-w64-mingw32.jl:10 [5] register_restored_modules(sv::Core.SimpleVector, pkg::Base.PkgId, path::String) @ Base .\loading.jl:1115 [6] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any}) @ Base .\loading.jl:1061 [7] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128) @ Base .\loading.jl:1506 [8] _require(pkg::Base.PkgId, env::String) @ Base .\loading.jl:1783 [9] _require_prelocked(uuidkey::Base.PkgId, env::String) @ Base .\loading.jl:1660 [10] macro expansion @ .\loading.jl:1648 [inlined] [11] macro expansion @ .\lock.jl:267 [inlined] [12] require(into::Module, mod::Symbol) @ Base .\loading.jl:1611 [13] top-level scope @ C:\Users\arthu.julia\packages\Preferences\TTEAN\src\Preferences.jl:47 [14] include @ .\Base.jl:457 [inlined] [15] 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, UInt128}}, source::Nothing) @ Base .\loading.jl:2049 [16] top-level scope @ stdin:3 during initialization of module MKL_jll in expression starting at C:\Users\arthu.julia\packages\LinearSolve\1B5tc\src\LinearSolve.jl:1 in expression starting at stdin:3 Stacktrace: [1] pkgerror(msg::String) @ Pkg.Types C:\Users\arthu\AppData\Local\Programs\Julia-1.9.4\share\julia\stdlib\v1.9\Pkg\src\Types.jl:69 [2] precompile(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}; internal_call::Bool, strict::Bool, warn_loaded::Bool, already_instantiated::Bool, timing::Bool, kwargs::Base.Pairs{Symbol, Base.TTY, Tuple{Symbol}, NamedTuple{(:io,), Tuple{Base.TTY}}}) @ Pkg.API C:\Users\arthu\AppData\Local\Programs\Julia-1.9.4\share\julia\stdlib\v1.9\Pkg\src\API.jl:1619 [3] precompile(pkgs::Vector{Pkg.Types.PackageSpec}; io::Base.TTY, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}) @ Pkg.API C:\Users\arthu\AppData\Local\Programs\Julia-1.9.4\share\julia\stdlib\v1.9\Pkg\src\API.jl:156 [4] precompile(pkgs::Vector{Pkg.Types.PackageSpec}) @ Pkg.API C:\Users\arthu\AppData\Local\Programs\Julia-1.9.4\share\julia\stdlib\v1.9\Pkg\src\API.jl:145 [5] precompile(; name::Nothing, uuid::Nothing, version::Nothing, url::Nothing, rev::Nothing, path::Nothing, mode::Pkg.Types.PackageMode, subdir::Nothing, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}) @ Pkg.API C:\Users\arthu\AppData\Local\Programs\Julia-1.9.4\share\julia\stdlib\v1.9\Pkg\src\API.jl:171 [6] precompile() @ Pkg.API C:\Users\arthu\AppData\Local\Programs\Julia-1.9.4\share\julia\stdlib\v1.9\Pkg\src\API.jl:162 [7] top-level scope @ REPL[6]:1

[ChrisRackauckas]

Is this with a standard installation of Julia downloaded from https://julialang.org/? Can you share versioninfo()?

[riskpressure]

Julia Version 1.9.4 Commit 8e5136fa29 (2023-11-14 08:46 UTC) Build Info: Official https://julialang.org/ release Platform Info: OS: Windows (x86_64-w64-mingw32) CPU: 8 × 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz WORD_SIZE: 64 LIBM: libopenlibm LLVM: libLLVM-14.0.6 (ORCJIT, tigerlake) Threads: 1 on 8 virtual cores Environment: JULIA_IMAGE_THREADS = 1

[ChrisRackauckas]

Did you try just wiping .julia and seeing if a new download fixed it?

[riskpressure]

I ended up installing Intel oneAPI toolkit, which had the required module: "mkl_core.2.dll". This also required me to download Microsoft Visual Studio Build Tools which had some essential libraries for the Intel oneAPI Toolkit. Thank you. So the problem is solved for now.

[ChrisRackauckas]

That all shouldn't be required if you didn't build from source.