Pkg.jl: Error calling `up`

[quinnj]

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  | | |_| | | | (_| |  |  Version 0.7.0-DEV.4727 (2018-03-31 15:54 UTC)
 _/ |\__'_|_|_|\__'_|  |  Commit 025a9ee3ed (0 days old master)
|__/                   |  x86_64-cros-linux-gnu

pkg> up
  Updating registry at `~/.julia/registries/Uncurated`
 Resolving package versions...
ERROR: MethodError: Cannot `convert` an object of type Pkg3.Types.VersionSpec to an object of type VersionNumber
Closest candidates are:
  convert(::Type{VersionNumber}, ::Integer) at deprecated.jl:55
  convert(::Type{VersionNumber}, ::Tuple) at deprecated.jl:55
  convert(::Type{VersionNumber}, ::AbstractString) at deprecated.jl:55
  ...
Stacktrace:
 [1] Pkg3.Types.Fixed(::Pkg3.Types.VersionSpec, ::Dict{Base.UUID,Pkg3.Types.VersionSpec}) at /home/chronos/user/julia/usr/share/julia/site/v0.7/Pkg3/src/Types.jl:316
 [2] collect_fixed!(::Pkg3.Types.Context, ::Array{Pkg3.Types.PackageSpec,1}, ::Dict{Base.UUID,String}) at /home/chronos/user/julia/usr/share/julia/site/v0.7/Pkg3/src/Operations.jl:145
 [3] resolve_versions!(::Pkg3.Types.Context, ::Array{Pkg3.Types.PackageSpec,1}) at /home/chronos/user/julia/usr/share/julia/site/v0.7/Pkg3/src/Operations.jl:256
 [4] up(::Pkg3.Types.Context, ::Array{Pkg3.Types.PackageSpec,1}) at /home/chronos/user/julia/usr/share/julia/site/v0.7/Pkg3/src/Operations.jl:947

[rjkat]

I have the same issue. Looks like it's a problem in Operations.jl where the version field of the package is set to a VersionSpec here and then here we try to make a Fixed out of it, which has only one constructor:

Fixed(v::VersionNumber) = Fixed(v,Requires())

So we try to convert the VersionSpec to a VersionNumber which fails. Not sure how this should be resolved. Any ideas @KristofferC ?

[KristofferC]

I think this should be fixed on master so that the version field is always set before creating the Fixed. If you have a consistent way of reproducing I could test and see if it works now.

[rjkat]

Ah yes, the old bug report without steps to reproduce ;)

In my case I can trigger by doing the following

1. Create a package with a Project.toml that looks like this:

name = "AwesomePackage"
uuid = "..."
repo-url = "https://git-server/git-user/AwesomePackage.jl.git"
author = ["Git User <[email protected]>"]

1. Install it via Pkg3

pkg> dev https://git-server/git-user/AwesomePackage.jl.git

1. Call up

pkg> up

Thanks for the quick reply, let me know if you have any issues reproducing on your side.

[KristofferC]

Ok so I put up https://github.com/KristofferC/MyPackage and did:

(v0.7) pkg> dev https://github.com/KristofferC/MyPackage
   Cloning git-repo `https://github.com/KristofferC/MyPackage`
  Updating git-repo `https://github.com/KristofferC/MyPackage`
 Resolving package versions...
  Updating `~/.julia/environments/v0.7/Project.toml`
 [ca6b0568] + MyPackage v0.1.0 [`~/.julia/dev/MyPackage`]
  Updating `~/.julia/environments/v0.7/Manifest.toml`
 [ca6b0568] + MyPackage v0.1.0 [`~/.julia/dev/MyPackage`]

(v0.7) pkg> up
  Updating registry at `~/.julia/registries/Uncurated`
  Updating git-repo `https://github.com/JuliaRegistries/Uncurated.git`
 Resolving package versions...
  Updating `~/.julia/environments/v0.7/Project.toml`
 [no changes]
  Updating `~/.julia/environments/v0.7/Manifest.toml`
 [no changes]

Seems fixed to me. I'll try update the Julia repo with new Pkg3 in not too long.

[rjkat]

Can you reproduce the breakage by using the Pkg3 that comes with Julia?

[KristofferC]

Yep!

(v0.7) pkg> up
  Updating registry at `~/.julia/registries/Uncurated`
  Updating git-repo `https://github.com/JuliaRegistries/Uncurated.git`
 Resolving package versions...
ERROR: MethodError: Cannot `convert` an object of type Pkg3.Types.VersionSpec to an object of type VersionNumber
Closest candidates are:
  convert(::Type{VersionNumber}, ::Integer) at deprecated.jl:55
  convert(::Type{VersionNumber}, ::Tuple) at deprecated.jl:55
  convert(::Type{VersionNumber}, ::AbstractString) at deprecated.jl:55
  ...
Stacktrace:
 [1] Pkg3.Types.Fixed(::Pkg3.Types.VersionSpec, ::Dict{Base.UUID,Pkg3.Types.VersionSpec}) at /Users/kristoffer/julia/usr/share/julia/site/v0.7/Pkg3/src/Types.jl:316
 [2] collect_fixed!(::Pkg3.Types.Context, ::Array{Pkg3.Types.PackageSpec,1}, ::Dict{Base.UUID,String}) at /Users/kristoffer/julia/usr/share/julia/site/v0.7/Pkg3/src/Operations.jl:145
 [3] resolve_versions!(::Pkg3.Types.Context, ::Array{Pkg3.Types.PackageSpec,1}) at /Users/kristoffer/julia/usr/share/julia/site/v0.7/Pkg3/src/Operations.jl:256

[KristofferC]

Will be fixed when #26768 is merged