# ERROR: ArgumentError: Unsupported architecture 'aarch64' for macOS

**URL:** <https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512>\
**Category:** New to Julia\
**Tags:** question, bug\
**Created:** [November 3, 2020, 9:35am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512 "2020-11-03T09:35:47Z")\
**Posts on this page:** 9\
**Page:** 1

<div class="post-metadata">

**Author:** ![ohmsweetohm1](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ohmsweetohm1/32/49126_2.png) [@ohmsweetohm1](https://discourse.julialang.org/u/ohmsweetohm1)\
**Post date:** [November 3, 2020, 9:35am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/1 "2020-11-03T09:35:47Z")

</div>

I was trying to add a package and got this error.

ERROR: ArgumentError: Unsupported architecture ‘aarch64’ for macOS

However, I’m on a Windows machine - do not understand it.

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<div class="post-metadata">

**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [November 3, 2020, 9:46am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/2 "2020-11-03T09:46:22Z")

</div>

Can you please provide the full stacktrace?

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<div class="post-metadata">

**Author:** ![hill](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/hill/32/50775_2.png) [@hill](https://discourse.julialang.org/u/hill)\
**Post date:** [November 3, 2020, 9:54am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/3 "2020-11-03T09:54:19Z")

</div>

I am on macOS and I get this:

```julia
(@v1.5) pkg> update
   Updating registry at `~/.julia/registries/General`
ERROR: ArgumentError: Unsupported architecture 'aarch64' for macOS
Stacktrace:
 [1] MacOS at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/BinaryPlatforms.jl:144 [inlined]
 [2] unpack_platform(::Dict{String,Any}, ::String, ::String) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Artifacts.jl:429
 [3] (::Pkg.Artifacts.var"#21#22"{String,String})(::Dict{String,Any}) at ./none:0
 [4] iterate at ./generator.jl:47 [inlined]
 [5] Dict{Pkg.BinaryPlatforms.Platform,Dict{String,Any}}(::Base.Generator{Array{Dict{String,Any},1},Pkg.Artifacts.var"#21#22"{String,String}}) at ./dict.jl:102
 [6] artifact_meta(::String, ::Dict{String,Any}, ::String; platform::Pkg.BinaryPlatforms.Platform) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Artifacts.jl:553
 [7] ensure_all_artifacts_installed(::String; platform::Pkg.BinaryPlatforms.Platform, pkg_uuid::Nothing, include_lazy::Bool, verbose::Bool, quiet_download::Bool) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Artifacts.jl:951
 [8] download_artifacts(::Pkg.Types.Context, ::Array{String,1}; platform::Pkg.BinaryPlatforms.MacOS, verbose::Bool) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:663
 [9] download_artifacts(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; platform::Pkg.BinaryPlatforms.MacOS, verbose::Bool) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:642
 [10] download_artifacts(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:641
 [11] up(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Pkg.Types.UpgradeLevel) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1225
 [12] up(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; level::Pkg.Types.UpgradeLevel, mode::Pkg.Types.PackageMode, update_registry::Bool, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:246
 [13] up at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:222 [inlined]
 [14] #up#37 at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:67 [inlined]
 [15] up(::Array{Pkg.Types.PackageSpec,1}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:67
 [16] do_cmd!(::Pkg.REPLMode.Command, ::REPL.LineEditREPL) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/REPLMode/REPLMode.jl:404
 [17] do_cmd(::REPL.LineEditREPL, ::String; do_rethrow::Bool) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/REPLMode/REPLMode.jl:382
 [18] do_cmd at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/REPLMode/REPLMode.jl:377 [inlined]
 [19] (::Pkg.REPLMode.var"#24#27"{REPL.LineEditREPL,REPL.LineEdit.Prompt})(::REPL.LineEdit.MIState, ::Base.GenericIOBuffer{Array{UInt8,1}}, ::Bool) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Pkg/src/REPLMode/REPLMode.jl:546
 [20] #invokelatest#1 at ./essentials.jl:710 [inlined]
 [21] invokelatest at ./essentials.jl:709 [inlined]
 [22] run_interface(::REPL.Terminals.TextTerminal, ::REPL.LineEdit.ModalInterface, ::REPL.LineEdit.MIState) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/REPL/src/LineEdit.jl:2355
 [23] run_frontend(::REPL.LineEditREPL, ::REPL.REPLBackendRef) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:1144
 [24] (::REPL.var"#38#42"{REPL.LineEditREPL,REPL.REPLBackendRef})() at ./task.jl:356

```

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<div class="post-metadata">

**Author:** ![theogf](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/theogf/32/1987_2.png) [@theogf](https://discourse.julialang.org/u/theogf)\
**Post date:** [November 3, 2020, 9:57am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/4 "2020-11-03T09:57:59Z")

</div>

It also happens on Linux

```julia
ERROR: ArgumentError: Unsupported architecture 'aarch64' for macOS
Stacktrace:
 [1] MacOS at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/BinaryPlatforms.jl:144 [inlined]
 [2] unpack_platform(::Dict{String,Any}, ::String, ::String) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Artifacts.jl:429
 [3] (::Pkg.Artifacts.var"#21#22"{String,String})(::Dict{String,Any}) at ./none:0
 [4] iterate at ./generator.jl:47 [inlined]
 [5] Dict{Pkg.BinaryPlatforms.Platform,Dict{String,Any}}(::Base.Generator{Array{Dict{String,Any},1},Pkg.Artifacts.var"#21#22"{String,String}}) at ./dict.jl:102
 [6] artifact_meta(::String, ::Dict{String,Any}, ::String; platform::Pkg.BinaryPlatforms.Platform) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Artifacts.jl:553
 [7] ensure_all_artifacts_installed(::String; platform::Pkg.BinaryPlatforms.Platform, pkg_uuid::Nothing, include_lazy::Bool, verbose::Bool, quiet_download::Bool) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Artifacts.jl:951
 [8] download_artifacts(::Pkg.Types.Context, ::Array{String,1}; platform::Pkg.BinaryPlatforms.Linux, verbose::Bool) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:663
 [9] download_artifacts(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; platform::Pkg.BinaryPlatforms.Linux, verbose::Bool) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:642
 [10] download_artifacts(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:641
 [11] up(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Pkg.Types.UpgradeLevel) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1225
 [12] up(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; level::Pkg.Types.UpgradeLevel, mode::Pkg.Types.PackageMode, update_registry::Bool, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:246
 [13] up at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:222 [inlined]
 [14] #up#37 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:67 [inlined]
 [15] up(::Array{Pkg.Types.PackageSpec,1}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:67
 [16] do_cmd!(::Pkg.REPLMode.Command, ::REPL.LineEditREPL) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/REPLMode/REPLMode.jl:404
 [17] do_cmd(::REPL.LineEditREPL, ::String; do_rethrow::Bool) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/REPLMode/REPLMode.jl:382
 [18] do_cmd at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/REPLMode/REPLMode.jl:377 [inlined]
 [19] (::Pkg.REPLMode.var"#24#27"{REPL.LineEditREPL,REPL.LineEdit.Prompt})(::REPL.LineEdit.MIState, ::Base.GenericIOBuffer{Array{UInt8,1}}, ::Bool) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Pkg/src/REPLMode/REPLMode.jl:546
 [20] #invokelatest#1 at ./essentials.jl:710 [inlined]
 [21] invokelatest at ./essentials.jl:709 [inlined]
 [22] run_interface(::REPL.Terminals.TextTerminal, ::REPL.LineEdit.ModalInterface, ::REPL.LineEdit.MIState) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/REPL/src/LineEdit.jl:2355
 [23] run_frontend(::REPL.LineEditREPL, ::REPL.REPLBackendRef) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:1144
 [24] (::REPL.var"#38#42"{REPL.LineEditREPL,REPL.REPLBackendRef})() at ./task.jl:356

```

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<div class="post-metadata">

**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [November 3, 2020, 10:23am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/5 "2020-11-03T10:23:40Z")

</div>

If you update the packages now with `]update`, the error should hopefully be gone

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<div class="post-metadata">

**Author:** ![ohmsweetohm1](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ohmsweetohm1/32/49126_2.png) [@ohmsweetohm1](https://discourse.julialang.org/u/ohmsweetohm1)\
**Post date:** [November 3, 2020, 10:27am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/6 "2020-11-03T10:27:23Z")

</div>

I tried that before and it did not work.  
However, I’m not able to reproduce the error with a fresh install of Julia 1.5.2.

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<div class="post-metadata">

**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [November 3, 2020, 10:28am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/7 "2020-11-03T10:28:20Z")

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> [@ohmsweetohm1](#):
>
> I tried that before and it did not work.

Well, I fixed the registry a few seconds before posting the message 🙂

> [@ohmsweetohm1](#):
>
> However, I’m not able to reproduce the error with a fresh install of Julia 1.5.2.

Julia v1.5.2 is immune to that error

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<div class="post-metadata">

**Author:** ![theogf](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/theogf/32/1987_2.png) [@theogf](https://discourse.julialang.org/u/theogf)\
**Post date:** [November 3, 2020, 10:29am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/8 "2020-11-03T10:29:08Z")

</div>

It’s working for me now! Thanks

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<div class="post-metadata">

**Author:** ![torfjelde](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/torfjelde/32/206542_2.png) [@torfjelde](https://discourse.julialang.org/u/torfjelde)\
**Post date:** [August 23, 2021, 10:39am UTC](https://discourse.julialang.org/t/error-argumenterror-unsupported-architecture-aarch64-for-macos/49512/9 "2021-08-23T10:39:04Z")

</div>

Just came across this when doing `] test` on Julia 1.3 for a package, and it was fixed by just updating packages as @giordano suggested 👍