Need to add `-a arm64` if on Apple Silicon

[aglee]

There is an instruction to run this command: dotnet tool install -g Microsoft.Web.LibraryManager.Cli.

The resulting installation of libman was Intel. I was on an M1 machine without Rosetta installed, so libman failed. I found that adding -a arm64 fixed this: dotnet tool install -a arm64 -g Microsoft.Web.LibraryManager.Cli.

Added by WadePickett:
To fix the larger scope of this issue across the repo the following are also to be addressed:

• Update the dotnet/docs: dotnet tool install doc to include the install options. Was not ever documented.
• Create an include file on dotnet/docs and on aspnetcore.docs repos that provides a standard note about the options.
• Update 30 identified topics with the include note on the install options for dotnet tool install.

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Document Details

⚠ Do not edit this section. It is required for learn.microsoft.com ➟ GitHub issue linking.

• ID: 0dd2991d-c22d-ad0f-80b6-bd1b503db8f3
• Version Independent ID: 5e3fbe1d-c97f-9940-4f0c-067d4b2112b1
• Content: Get started with ASP.NET Core SignalR
• Content Source: aspnetcore/tutorials/signalr.md
• Product: aspnet-core
• Technology: aspnetcore-tutorials
• GitHub Login: @bradygaster
• Microsoft Alias: wpickett

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Associated WorkItem - 97030

[guardrex]

Thanks, @aglee.

@Rick-Anderson @wadepickett @tdykstra ... We can cross-link to ...

https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-install-script#options

... but there's no mention of explicitly naming an architecture in the following articles ...

• https://learn.microsoft.com/aspnet/core/client-side/libman/libman-cli#installation
• https://learn.microsoft.com/dotnet/core/tools/global-tools#install-a-global-tool
• https://learn.microsoft.com/dotnet/core/tools/global-tools-how-to-use

Perhaps, the article in our doc set should have something on this. If so, there are 26 tool installs in 54 other files around the repo that could link to it.

[wadepickett]

I could create an include that as a note, something like the note below wherever we use dotnet tool install.

Example:

In the integrated terminal, run the following commands to install LibMan after uninstalling any previous version, if one exists.

dotnet tool uninstall -g Microsoft.Web.LibraryManager.Cli
dotnet tool install -g Microsoft.Web.LibraryManager.Cli

[Example below updated 6/2/23 to match tdykstra's suggestion so I don't accidently link to the wrong topic]

Note

By default the architecture of the .NET binaries to install represents the currently running OS architecture. To specify a different OS architecture, see dotnet tool install, --arch option.

[guardrex]

That's good because this goes beyond just this package.

[tdykstra]

Good idea, but note that your sample links to the wrong article -- should be dotnet tool install, not dotnet-install-scripts.

Also, the dotnet tool install article needs -a/--arch added to its options sections.

Tweaking the proposed text slightly:

Note

By default the architecture of the .NET binaries to install represents the currently running OS architecture. To specify a different OS architecture, see dotnet tool install, --arch option.