Can't add any package

General Usage
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1

Hello. I suddenly realized that I cannot add any Julia packages. For instance, when I try using Pkg; Pkg.add("Revise") I get the following error (I have Julia 1.5.3 installed and been able to add packages a few days ago without any problems):

ERROR: The following package names could not be resolved:
 * Revise (not found in project, manifest or registry)

Stacktrace:
 [1] pkgerror(::String) at C:\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 C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:837
 [3] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Windows, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:177
 [4] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:139
 [5] #add#21 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67 [inlined]
 [6] add at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67 [inlined]
 [7] #add#20 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:66 [inlined]
 [8] add at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:66 [inlined]
 [9] add(::String; kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:65
 [10] add(::String) at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:65
 [11] top-level scope at REPL[9]:1

Any help would be greatly appreciated!

2

If it is really difficult to solve, just remove the ~/.julia directory. Then, install the needed package. This can solve most problems related to Pkg.

1 Like
3

Thanks! Could you please tell me how can I find ~/.julia directory in Windows 10? And If I remove the directory, will I lose my previously installed packages?

4

For the linux and Mac system, it is located in ~/.julia. For the windows system, it is usually c:/users/your_user_name/.julia

1 Like
5

Many thanks! Your solution worked!