How does one activate the environment of an added package?

I start with the Julia folder wiped clean. So I do

PetrKrysl@Spectre MINGW64 ~
$ rm -rf ~/.julia/

PetrKrysl@Spectre MINGW64 ~
$ julia
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.2.0 (2019-08-20)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

julia> using Pkg

julia> Pkg.add(PackageSpec(url="https://github.com/PetrKryslUCSD/FinEtoolsHeatDiff.jl"))
   Cloning git-repo `https://github.com/PetrKryslUCSD/FinEtoolsHeatDiff.jl`
  Updating git-repo `https://github.com/PetrKryslUCSD/FinEtoolsHeatDiff.jl`
  Updating git-repo `https://github.com/PetrKryslUCSD/FinEtoolsHeatDiff.jl`
 Resolving package versions...
   Cloning default registries into `C:\Users\PetrKrysl\.julia`
   Cloning registry from "https://github.com/JuliaRegistries/General.git"
     Added registry `General` to `C:\Users\PetrKrysl\.julia\registries\General`
 Installed Missings ──────────────────── v0.4.3
 Installed DimensionalPlotRecipes ────── v0.2.0
 Installed Inflate ───────────────────── v0.1.1
 Installed NLsolve ───────────────────── v4.1.0
 Installed ArrayInterface ────────────── v1.2.1
 Installed DelayDiffEq ───────────────── v5.16.0
 Installed DiffEqCallbacks ───────────── v2.8.0
 Installed StaticArrays ──────────────── v0.11.0
 Installed GenericSVD ────────────────── v0.2.2
 Installed Compat ────────────────────── v2.1.0
 Installed ExponentialUtilities ──────── v1.5.1
 Installed Calculus ──────────────────── v0.5.0
 Installed SortingAlgorithms ─────────── v0.3.1
 Installed LineSearches ──────────────── v7.0.1
 Installed MacroTools ────────────────── v0.5.1
 Installed SparseDiffTools ───────────── v0.9.1
 Installed Requires ──────────────────── v0.5.2
 Installed TreeViews ─────────────────── v0.3.0
 Installed BlockBandedMatrices ───────── v0.5.1
 Installed ArnoldiMethod ─────────────── v0.0.4
 Installed NLSolversBase ─────────────── v7.5.0
 Installed CommonSubexpressions ──────── v0.2.0
 Installed RecursiveFactorization ────── v0.1.0
 Installed DiffEqJump ────────────────── v6.2.2
 Installed Reexport ──────────────────── v0.2.0
 Installed IteratorInterfaceExtensions ─ v1.0.0
 Installed PoissonRandom ─────────────── v0.4.0
 Installed BoundaryValueDiffEq ───────── v2.3.0
 Installed Arpack ────────────────────── v0.3.1
 Installed BinaryProvider ────────────── v0.5.6
 Installed DiffEqBase ────────────────── v6.3.3
 Installed FillArrays ────────────────── v0.7.2
 Installed VertexSafeGraphs ──────────── v0.1.0
 Installed NaNMath ───────────────────── v0.3.2
 Installed DiffRules ─────────────────── v0.0.10
 Installed MatrixFactorizations ──────── v0.2.0
 Installed LazyArrays ────────────────── v0.12.1
 Installed ResettableStacks ──────────── v0.6.0
 Installed StatsBase ─────────────────── v0.32.0
 Installed FinEtools ─────────────────── v3.0.1
 Installed Parsers ───────────────────── v0.3.7
 Installed Parameters ────────────────── v0.12.0
 Installed TableTraits ───────────────── v1.0.0
 Installed StochasticDiffEq ──────────── v6.11.2
 Installed RecipesBase ───────────────── v0.7.0
 Installed RandomNumbers ─────────────── v1.3.0
 Installed IterativeSolvers ──────────── v0.8.1
 Installed Distances ─────────────────── v0.8.2
 Installed DiffEqDiffTools ───────────── v1.3.0
 Installed Tokenize ──────────────────── v0.5.6
 Installed URIParser ─────────────────── v0.4.0
 Installed BinDeps ───────────────────── v0.8.10
 Installed OrdinaryDiffEq ────────────── v5.17.2
 Installed DifferentialEquations ─────── v6.8.0
 Installed OrderedCollections ────────── v1.1.0
 Installed JSON ──────────────────────── v0.21.0
 Installed Sundials ──────────────────── v3.7.0
 Installed BlockArrays ───────────────── v0.10.0
 Installed RecursiveArrayTools ───────── v1.0.2
 Installed CSTParser ─────────────────── v0.6.2
 Installed BandedMatrices ────────────── v0.12.2
 Installed SpecialFunctions ──────────── v0.8.0
 Installed DataStructures ────────────── v0.17.1
 Installed MuladdMacro ───────────────── v0.2.1
 Installed LightGraphs ───────────────── v1.3.0
 Installed DiffEqPhysics ─────────────── v3.2.0
 Installed SimpleTraits ──────────────── v0.9.1
 Installed MultiScaleArrays ──────────── v1.5.0
 Installed SteadyStateDiffEq ─────────── v1.5.0
 Installed ForwardDiff ───────────────── v0.10.3
 Installed DiffResults ───────────────── v0.0.4
 Installed DiffEqNoiseProcess ────────── v3.3.1
 Installed Roots ─────────────────────── v0.8.3
 Installed FunctionWrappers ──────────── v1.0.0
 Installed DiffEqFinancial ───────────── v2.2.1
 Installed BenchmarkTools ────────────── v0.4.3
 Installed DocStringExtensions ───────── v0.8.0
 Installed Adapt ─────────────────────── v1.0.0
 Installed DataAPI ───────────────────── v1.1.0
  Updating `C:\Users\PetrKrysl\.julia\environments\v1.2\Project.toml`
  [972d1c22] + FinEtoolsHeatDiff v0.1.0 #master (https://github.com/PetrKryslUCSD/FinEtoolsHeatDiff.jl)
  Updating `C:\Users\PetrKrysl\.julia\environments\v1.2\Manifest.toml`
  [79e6a3ab] + Adapt v1.0.0
  [ec485272] + ArnoldiMethod v0.0.4
  [7d9fca2a] + Arpack v0.3.1
  [4fba245c] + ArrayInterface v1.2.1
  [aae01518] + BandedMatrices v0.12.2
  [6e4b80f9] + BenchmarkTools v0.4.3
  [9e28174c] + BinDeps v0.8.10
  [b99e7846] + BinaryProvider v0.5.6
  [8e7c35d0] + BlockArrays v0.10.0
  [ffab5731] + BlockBandedMatrices v0.5.1
  [764a87c0] + BoundaryValueDiffEq v2.3.0
  [00ebfdb7] + CSTParser v0.6.2
  [49dc2e85] + Calculus v0.5.0
  [bbf7d656] + CommonSubexpressions v0.2.0
  [34da2185] + Compat v2.1.0
  [9a962f9c] + DataAPI v1.1.0
  [864edb3b] + DataStructures v0.17.1
  [bcd4f6db] + DelayDiffEq v5.16.0
  [2b5f629d] + DiffEqBase v6.3.3
  [459566f4] + DiffEqCallbacks v2.8.0
  [01453d9d] + DiffEqDiffTools v1.3.0
  [5a0ffddc] + DiffEqFinancial v2.2.1
  [c894b116] + DiffEqJump v6.2.2
  [77a26b50] + DiffEqNoiseProcess v3.3.1
  [055956cb] + DiffEqPhysics v3.2.0
  [163ba53b] + DiffResults v0.0.4
  [b552c78f] + DiffRules v0.0.10
  [0c46a032] + DifferentialEquations v6.8.0
  [c619ae07] + DimensionalPlotRecipes v0.2.0
  [b4f34e82] + Distances v0.8.2
  [ffbed154] + DocStringExtensions v0.8.0
  [d4d017d3] + ExponentialUtilities v1.5.1
  [1a297f60] + FillArrays v0.7.2
  [91bb5406] + FinEtools v3.0.1
  [972d1c22] + FinEtoolsHeatDiff v0.1.0 #master (https://github.com/PetrKryslUCSD/FinEtoolsHeatDiff.jl)
  [f6369f11] + ForwardDiff v0.10.3
  [069b7b12] + FunctionWrappers v1.0.0
  [01680d73] + GenericSVD v0.2.2
  [d25df0c9] + Inflate v0.1.1
  [42fd0dbc] + IterativeSolvers v0.8.1
  [82899510] + IteratorInterfaceExtensions v1.0.0
  [682c06a0] + JSON v0.21.0
  [5078a376] + LazyArrays v0.12.1
  [093fc24a] + LightGraphs v1.3.0
  [d3d80556] + LineSearches v7.0.1
  [1914dd2f] + MacroTools v0.5.1
  [a3b82374] + MatrixFactorizations v0.2.0
  [e1d29d7a] + Missings v0.4.3
  [46d2c3a1] + MuladdMacro v0.2.1
  [f9640e96] + MultiScaleArrays v1.5.0
  [d41bc354] + NLSolversBase v7.5.0
  [2774e3e8] + NLsolve v4.1.0
  [77ba4419] + NaNMath v0.3.2
  [bac558e1] + OrderedCollections v1.1.0
  [1dea7af3] + OrdinaryDiffEq v5.17.2
  [d96e819e] + Parameters v0.12.0
  [69de0a69] + Parsers v0.3.7
  [e409e4f3] + PoissonRandom v0.4.0
  [e6cf234a] + RandomNumbers v1.3.0
  [3cdcf5f2] + RecipesBase v0.7.0
  [731186ca] + RecursiveArrayTools v1.0.2
  [f2c3362d] + RecursiveFactorization v0.1.0
  [189a3867] + Reexport v0.2.0
  [ae029012] + Requires v0.5.2
  [ae5879a3] + ResettableStacks v0.6.0
  [f2b01f46] + Roots v0.8.3
  [699a6c99] + SimpleTraits v0.9.1
  [a2af1166] + SortingAlgorithms v0.3.1
  [47a9eef4] + SparseDiffTools v0.9.1
  [276daf66] + SpecialFunctions v0.8.0
  [90137ffa] + StaticArrays v0.11.0
  [2913bbd2] + StatsBase v0.32.0
  [9672c7b4] + SteadyStateDiffEq v1.5.0
  [789caeaf] + StochasticDiffEq v6.11.2
  [c3572dad] + Sundials v3.7.0
  [3783bdb8] + TableTraits v1.0.0
  [0796e94c] + Tokenize v0.5.6
  [a2a6695c] + TreeViews v0.3.0
  [30578b45] + URIParser v0.4.0
  [19fa3120] + VertexSafeGraphs v0.1.0
  [2a0f44e3] + Base64
  [ade2ca70] + Dates
  [8bb1440f] + DelimitedFiles
  [8ba89e20] + Distributed
  [b77e0a4c] + InteractiveUtils
  [76f85450] + LibGit2
  [8f399da3] + Libdl
  [37e2e46d] + LinearAlgebra
  [56ddb016] + Logging
  [d6f4376e] + Markdown
  [a63ad114] + Mmap
  [44cfe95a] + Pkg
  [de0858da] + Printf
  [9abbd945] + Profile
  [3fa0cd96] + REPL
  [9a3f8284] + Random
  [ea8e919c] + SHA
  [9e88b42a] + Serialization
  [1a1011a3] + SharedArrays
  [6462fe0b] + Sockets
  [2f01184e] + SparseArrays
  [10745b16] + Statistics
  [4607b0f0] + SuiteSparse
  [8dfed614] + Test
  [cf7118a7] + UUIDs
  [4ec0a83e] + Unicode
  Building Arpack ──────────→ `C:\Users\PetrKrysl\.julia\packages\Arpack\cu5By\deps\build.log`
  Building Sundials ────────→ `C:\Users\PetrKrysl\.julia\packages\Sundials\CRi5j\deps\build.log`
  Building SpecialFunctions β†’ `C:\Users\PetrKrysl\.julia\packages\SpecialFunctions\ne2iw\deps\build.log`

julia> Pkg.activate("FinEtoolsHeatDiff")
Activating new environment at `C:\Users\PetrKrysl\FinEtoolsHeatDiff\Project.toml`

julia> Pkg.instantiate()
  Updating registry at `C:\Users\PetrKrysl\.julia\registries\General`
  Updating git-repo `https://github.com/JuliaRegistries/General.git`
 Resolving package versions...

I have added a package as Pkg.add(PackageSpec(url="https://github.com/PetrKryslUCSD/FinEtoolsHeatDiff.jl")). Now I want to activate its environment so I say Pkg.activate("FinEtoolsHeatDiff"). Unfortunately, that seems to do "Activating new environment at C:\Users\PetrKrysl\FinEtoolsHeatDiff\Project.toml", but there is no such folder and no such project. Somehow I need to be able to refer to the package I added (and which lives now in C:\Users\PetrKrysl\.julia\packages\FinEtoolsHeatDiff).

This whole thing works fine with a deved package in a local folder. That is what I have been doing this whole time. But now I had the idea of adding the package, and activation doesn’t work anymore. Is there a solution?

I’ve tried specifying the package path as
/c/Users/PetrKrysl/.julia/packages/FinEtoolsHeatDiff/
or
/c/Users/PetrKrysl/.julia/packages/FinEtoolsHeatDiff/08kpy/
(because that’s where the Project and Manifest files actually live).
Neither one worked.

I think only deved packages can be activated. But you should be able to dev the package cloned from github instead of using the local folder, just use dev instead of add:

pkg> dev https://github.com/PetrKryslUCSD/FinEtoolsHeatDiff.jl
pkg> activate FinEtoolsHeatDiff
1 Like

Excellent. That worked. I believe it actually makes sense for it to work with β€œdevelop” since β€œadd” creates those subfolders…