Trouble with new local package

New to Julia
,
1

I am mostly familiar with Python’s packaging … but I am trying to start a new package for my application. Surely I am getting something wrong.

               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.9.0 (2023-05-07)
 _/ |\__'_|_|_|\__'_|  |
|__/                   |

(@v1.9) pkg> generate Stuff
  Generating  project Stuff:
    Stuff/Project.toml
    Stuff/src/Stuff.jl

(@v1.9) pkg> activate Stuff/
  Activating project at `~/Projects/Julia/Stuff`

(Stuff) pkg> status
Project Stuff v0.1.0
Status `~/Projects/Julia/Stuff/Project.toml` (empty project)

(Stuff) pkg> add FFTW
   Resolving package versions...
ERROR: cannot find name corresponding to UUID a63ad114-7e13-5084-954f-fe012c677804 in a registry

(Stuff) pkg> add NetCDF
   Resolving package versions...
ERROR: cannot find name corresponding to UUID a63ad114-7e13-5084-954f-fe012c677804 in a registry

(Stuff) pkg>```
2

I deleted ~/.julia and the Stuff folder … restarted Julia, re-generated the Stuff project and got the same error:

(Stuff) pkg> add FFTW
   Resolving package versions...
ERROR: cannot find name corresponding to UUID a63ad114-7e13-5084-954f-fe012c677804 in a registry
3

I don’t know if this is related, but this is the banner I get when I start Julia:

               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.9.0 (2023-05-07)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

Yours is missing the “Offical release” note at the bottom.

4

Ah, I git cloned the repo, then git checkout v1.9.0 … if that makes a difference.
After that I just ran make -j4 in the directory …

5

Maybe pkg> instantiate? Perhaps you never downloaded the General registry?

Also, PkgTemplates.jl is highly recommended for anything you intend to share with others. It sets up all the CI/documentation skeleton/etc for you, and is part of what contributes to that impression I’ve heard from many Python programmers, “wow, Julia packages are so consistent in their structure!”

6

would pkg> update download everything, or must it be pkg> instantiate?
Ok, clearly from the documentation, instantiate does the downloading (I didn’t do that). Must I do that in the “root” environment, or just ignore the root environment and only work on sub-environment/package things?

7

Unless you are planning to develop Julia itself, you are taking a hard path. Just download the binary from the Julia site or install juliaup and install Julia with it, and things will probably work. (and the use PkgTemplates)

See: GitHub - JuliaLang/juliaup: Julia installer and version multiplexer

8

Juliaup sounds neat, sort of like rustup? I’ll check it out.

2 Likes
9

It shouldn’t be this hard. Did you just try it? Once the general registry is downloaded for your depot, you should be all set (it no longer depends on the specific environment).

10

I hadn’t issued “pkg instantiate” that did the trick. I should have been more explicit, but I had marked your suggestion to issue the instantiate command as a solution.

1 Like
11

There must be something unusual going on here. The expected result of doing those operations in an empty depot (pointing JULIA_DEPOT_PATH to an empty directory is effectively equivalent to deleting .julia) is:

$ cd /tmp
$ mkdir testdepot
$ JULIA_DEPOT_PATH=/tmp/testdepot julia
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.9.0 (2023-05-07)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

(@v1.9) pkg> generate Stuff
  Generating  project Stuff:
    Stuff/Project.toml
    Stuff/src/Stuff.jl

(@v1.9) pkg> activate Stuff
  Activating project at `/tmp/Stuff`

(Stuff) pkg> status
  Installing known registries into `/tmp/testdepot`
Project Stuff v0.1.0
Status `/tmp/Stuff/Project.toml` (empty project)

(Stuff) pkg> add FFTW
    Updating registry at `/tmp/testdepot/registries/General.toml`
   Resolving package versions...
   Installed Preferences ───── v1.4.0
   [...]

Did you do something else before these operations?

1 Like
12

What you wrote is essentially what I did, but I remember it erroring out. I have some spare time to try it again fresh from the clone. I’ll make distclean in the git repo and delete ~/.julia again and post back.

# previously (i.e. yesterday)
# git clone https://github.com/JuliaLang/julia.git
# git checkout v1.9.0
rm -rf ~/.julia
cd ~/opt/julia
make clean
make distclean
make -j8
julia

And from the Julia session

]
generate Stuff
activate Stuff
add FFTW

and it worked without complaint! :man_shrugging:
Conclusion: yesterday was cursed somehow.
Note: I did not refresh my clone from yesterday, so any changes made remotely would not be the issue either.

1 Like