# IJulia (not found in project or manifest)

**URL:** <https://discourse.julialang.org/t/ijulia-not-found-in-project-or-manifest/49490>\
**Category:** New to Julia\
**Created:** [November 2, 2020, 11:50pm UTC](https://discourse.julialang.org/t/ijulia-not-found-in-project-or-manifest/49490 "2020-11-02T23:50:18Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![acycliq](https://avatars.discourse-cdn.com/v4/letter/a/77aa72/32.png) [@acycliq](https://discourse.julialang.org/u/acycliq)\
**Post date:** [November 2, 2020, 11:50pm UTC](https://discourse.julialang.org/t/ijulia-not-found-in-project-or-manifest/49490/1 "2020-11-02T23:50:18Z")

</div>

Hi all

That is the very first time I try to use Julia. I already have a Anaconda Python v3 distribution (Windows 10) installed on my pc and I want to integrate it with Julia  
This is what I have done

- Downloaded `julia-1.5.2-win64.exe` from the website and installed Julia
- Then in the REPL:  
`ENV["JUPYTER"]="C:\\ProgramData\\Anaconda3\\Scripts\\jupyter.exe"`  
`using Pkg`  
`Pkg.build("IJulia")`  
which returns the following error:

```julia
ERROR: The following package names could not be resolved:
 * IJulia (not found in project or manifest)

Stacktrace:
 [1] pkgerror(::String) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:52
 [2] ensure_resolved(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; registry::Bool) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:837
 [3] ensure_resolved at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:802 [inlined]
 [4] build(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; verbose::Bool, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:744
 [5] build at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:729 [inlined]
 [6] #build#69 at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67 [inlined]
 [7] build at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67 [inlined]
 [8] #build#68 at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:66 [inlined]
 [9] build at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:66 [inlined]
 [10] build(::String; kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:65
 [11] build(::String) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:65
 [12] top-level scope at REPL[3]:1

```

The same happens when I set the `ENV["PYTHON"]` value and try `Pkg.build("PyCall")`

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<div class="post-metadata">

**Author:** ![timquelch](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/timquelch/32/18278_2.png) [@timquelch](https://discourse.julialang.org/u/timquelch)\
**Post date:** [November 2, 2020, 11:54pm UTC](https://discourse.julialang.org/t/ijulia-not-found-in-project-or-manifest/49490/2 "2020-11-02T23:54:58Z")

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Try using `Pkg.add` rather than `Pkg.build`

If you look at the docs/help for both of them I think `add` is what you want.

```julia
julia> using Pkg

help?> Pkg.add
...
  Add a package to the current project. This package will be available by using the import and using keywords in the Julia REPL, and
  if the current project is a package, also inside that package.
...

help?> Pkg.build
...
  Run the build script in deps/build.jl for pkg and all of its dependencies in depth-first recursive order. If no argument is given to
  build, the current project is built, which thus needs to be a package. This function is called automatically on any package that
  gets installed for the first time. verbose = true prints the build output to stdout/stderr instead of redirecting to the build.log
  file.
```

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<div class="post-metadata">

**Author:** ![acycliq](https://avatars.discourse-cdn.com/v4/letter/a/77aa72/32.png) [@acycliq](https://discourse.julialang.org/u/acycliq)\
**Post date:** [November 3, 2020, 6:00pm UTC](https://discourse.julialang.org/t/ijulia-not-found-in-project-or-manifest/49490/3 "2020-11-03T18:00:51Z")

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thanks