I’m playing with some student code, and the following is happening: while there is a Manifest.toml file and it seems to contain all the packages, instantiate does nothing:
config.jl 'ddt_polipart!.jl' geradist.jl Manifest.toml Project.toml Run_polipart.jl Solve_BV2.jl
Configsimul.jl 'ddt_regsol_4!.jl' jacpattern.jl Mataux.jl projeto_1D Salvasimul.jl 'Solve_BV!.jl'
shell> grep DifferentialEquations Manifest.toml
(projeto_1D) pkg> instantiate
julia> using DifferentialEquations
│ Package DifferentialEquations not found, but a package named DifferentialEquations is available from a registry.
│ Install package?
│ (projeto_1D) pkg> add DifferentialEquations
└ (y/n/o) [y]: n
ERROR: ArgumentError: Package DifferentialEquations not found in current path.
- Run `import Pkg; Pkg.add("DifferentialEquations")` to install the DifferentialEquations package.
The code is not mine, so I will answer you in a private message to add further info. But for that specific question the answer is yes, it is listed.
I think the problem is somehow related to uppercase, lowercase, or underscore characters, as the code came from a Windows machine. I have reorganized the directory structure and now it is working, but there may be an underlying issue there.