# ERROR: Unsatisfiable requirements detected and has no known versions!
**URL:** https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289
**Category:** Package Management
**Tags:** package
**Created:** [December 18, 2021, 6:16am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289 "2021-12-18T06:16:39Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@vyush\_agarwal](https://discourse.julialang.org/u/vyush_agarwal)
#### Post date: [December 18, 2021, 6:16am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289/1 "2021-12-18T06:16:39Z")
I am getting the same error in my case Xnumber is a dependency of SHbundle and both of them are unregistered.
```julia
ERROR: Unsatisfiable requirements detected for package Xnumber [fdc6275c]:
Xnumber [fdc6275c] log:
├─Xnumber [fdc6275c] has no known versions!
└─restricted to versions * by SHbundle [685399a2] — no versions left
└─SHbundle [685399a2] log:
├─possible versions are: 0.1.0 or uninstalled
└─SHbundle [685399a2] is fixed to version 0.1.0
```
Also I have added Xnumber to SHbundle but when i run the following command in gitlab-ci i get the above error.
```julia
- |
julia --project=docs -e '
using Pkg
Pkg.Registry.update()
Pkg.develop(PackageSpec(path=pwd()))
Pkg.instantiate()
using Documenter: doctest
using SHbundle
doctest(SHbundle)
include("docs/make.jl")'
```
I don’t know how much the below answer is relevant to my case as could not understand the solution.
[https://discourse.julialang.org/t/package-manager-resolve-complaining-of-unsatisfiable-requirements-due-to-no-known-versions/23778?u=vyush\_agarwal](https://discourse.julialang.org/t/package-manager-resolve-complaining-of-unsatisfiable-requirements-due-to-no-known-versions/23778)
Link to gitlab repos:
[SHbundle](https://gitlab.com/vyush/SHbundle.jl)
Xnumber =\> `https://gitlab.com/vyush/Xnumber.jl`
---
### Author:  [@mkitti](https://discourse.julialang.org/u/mkitti)
#### Post date: [December 18, 2021, 6:31am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289/2 "2021-12-18T06:31:21Z")
My understanding is that you are trying to execute the above command in the `SHbundle` folder.
The problem is that `Pkg.instantiate()` is not going to work since it does not know how to find `Xnumber`.
Before instantiating you should `Pkg.develop(url="https://gitlab.com/vyush/Xnumber.jl")` first.
Try this:
```julia
using Pkg
Pkg.Registry.update()
Pkg.develop(url="https://gitlab.com/vyush/Xnumber.jl")
Pkg.develop(PackageSpec(path=pwd())) # I'm assuming we are in the SHbundle directory
Pkg.instantiate()
using Documenter: doctest
using SHbundle
doctest(SHbundle)
include("docs/make.jl")
```
---
### Author:  [@vyush\_agarwal](https://discourse.julialang.org/u/vyush_agarwal)
#### Post date: [December 18, 2021, 6:44am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289/3 "2021-12-18T06:44:44Z")
Thank you. This does solve the error but why does the
```julia
Pkg.develop(PackageSpec(path=pwd()))
```
not take the path to `Xnumber` from the `manifest.yml`
---
### Author:  [@mkitti](https://discourse.julialang.org/u/mkitti)
#### Post date: [December 18, 2021, 6:51am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289/4 "2021-12-18T06:51:27Z")
You are pointing at the `docs` project, so the relevant Manifest is [docs/Manifest.toml · master · Vyush Agarwal / SHbundle.jl · GitLab](https://gitlab.com/vyush/SHbundle.jl/-/blob/master/docs/Manifest.toml)
I do not see the path to Xnumber there. Also it is my rough understanding that Manifest.toml is mainly used by `Pkg.instantiate()`, but I may be wrong on this.
---
### Author:  [@vyush\_agarwal](https://discourse.julialang.org/u/vyush_agarwal)
#### Post date: [December 18, 2021, 7:02am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289/5 "2021-12-18T07:02:21Z")
Okay, that makes sense.Thanks.
---
### Author:  [@nbraunscheidel](https://discourse.julialang.org/u/nbraunscheidel)
#### Post date: [September 1, 2022, 6:39pm UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289/6 "2022-09-01T18:39:13Z")
This was very helpful for a single unregistered package, but any chance there is a fix for multiple unregistered packages? I tried adding ` Pkg.develop(url="...")` where `...` is the github url for each of my unregistered packages before calling `Pkg.develop(PackageSpec(path=pwd())) `. It seems only the first package is found and the others throw the same `Error: Unsatisfiable requirements detected and has no known versions.`
---
### Author:  [@mkitti](https://discourse.julialang.org/u/mkitti)
#### Post date: [September 2, 2022, 9:04am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-and-has-no-known-versions/73289/7 "2022-09-02T09:04:50Z")
`Pkg.develop` will accept a `Vector{PackageSpec}`. Thus you could do
```julia
using Pkg
Pkg.develop([PackageSpec(url="..."), PackageSpec(url="..."), ..., PackageSpec(url="...")])
```
See the docstrings for `Pkg.develop` and `PackageSpec`:
```julia
help?> Pkg.develop
Pkg.develop(pkg::Union{String, Vector{String}}; io::IO=stderr)
Pkg.develop(pkgs::Union{Packagespec, Vector{Packagespec}}; io::IO=stderr)
Make a package available for development by tracking it by path. If pkg is given with only a name or by a URL, the package will be downloaded to the location specified by the environment variable
JULIA_PKG_DEVDIR, with joinpath(DEPOT_PATH[1],"dev") being the default.
If pkg is given as a local path, the package at that path will be tracked.
Examples
≡≡≡≡≡≡≡≡≡≡
# By name
Pkg.develop("Example")
# By url
Pkg.develop(url="https://github.com/JuliaLang/Compat.jl")
# By path
Pkg.develop(path="MyJuliaPackages/Package.jl")
See also PackageSpec, Pkg.add.
help?> PackageSpec
search: PackageSpec
PackageSpec(name::String, [uuid::UUID, version::VersionNumber])
PackageSpec(; name, url, path, subdir, rev, version, mode, level)
A PackageSpec is a representation of a package with various metadata. This includes:
• The name of the package.
• The package's unique uuid.
• A version (for example when adding a package). When upgrading, can also be an instance of the enum UpgradeLevel.
• A url and an optional git revision. rev can be a branch name or a git commit SHA1.
• A local path. This is equivalent to using the url argument but can be more descriptive.
• A subdir which can be used when adding a package that is not in the root of a repository.
Most functions in Pkg take a Vector of PackageSpec and do the operation on all the packages in the vector.
│ Julia 1.5
│
│ Many functions that take a PackageSpec or a Vector{PackageSpec} can be called with a more concise notation with NamedTuples. For example, Pkg.add can be called either as the explicit or
│ concise versions as:
│
│ Explicit Concise
│ ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– –––––––––––––––––––––––––––––––––––––––––––––
│ Pkg.add(PackageSpec(name="Package")) Pkg.add(name = "Package")
│ Pkg.add(PackageSpec(url="www.myhost.com/MyPkg"))) Pkg.add(name = "Package")
│ Pkg.add([PackageSpec(name="Package"), PackageSpec(path="/MyPkg"]) Pkg.add([(;name="Package"), (;path="MyPkg")])
Below is a comparison between the REPL mode and the functional API:
REPL API
–––––––––––––––––– –––––––––––––––––––––––––––––––––––––––––––––––––––
Package PackageSpec("Package")
Package@0.2 PackageSpec(name="Package", version="0.2")
Package=a67d... PackageSpec(name="Package", uuid="a67d...")
Package#master PackageSpec(name="Package", rev="master")
local/path#feature PackageSpec(path="local/path"; rev="feature")
www.mypkg.com PackageSpec(url="www.mypkg.com")
--major Package PackageSpec(name="Package", version=PKGLEVEL_MAJOR)
```