vcpkg.exe cannot determine the version of the downloaded nuget.exe.

[kazssym]

Describe the bug
vcpkg.exe cannot determine the version of the downloaded nuget.exe and stops its execution.

Environment

• OS: Windows 11 Pro 22H2
• Compiler: Visual Studio Community 2022 17.10.0

To Reproduce
Steps to reproduce the behavior:

1. ./vcpkg upgrade --no-dry-run
2. See error

…(snip)
A suitable version of nuget was not found (required v6.10.0) Downloading portable nuget 6.10.0...
Downloading nuget...
https://dist.nuget.org/win-x86-commandline/v6.10.0/nuget.exe->F:\vcpkg\downloads\71d7307b-nuget.exe
Downloading https://dist.nuget.org/win-x86-commandline/v6.10.0/nuget.exe
error: nuget (F:\vcpkg\downloads\tools\nuget-6.10.0-windows\nuget.exe) produced unexpected output when attempting to determine the version:
NuGet バージョン: 6.10.0.107
使用方法: NuGet <command> [args] [options]
…(snip)

Expected behavior
vcpkg.exe would continue the upgrade process.

Failure logs
vcpkg.exe did not provide any log locations.

Additional context
My environment uses the Japanese locale. nuget.exe 6.2.1 produced NuGet Version: 6.2.1.2 but 6.10.0 produces NuGet バージョン: 6.10.0.107. The localized output seems to be the cause.

[JonLiu1993]

You should use ./vcpkg upgrade --no-dry-run instead of ./vcpkg install upgrade --no-dry-run,
Can you directly use the command https://dist.nuget.org/win-x86-commandline/v6.10.0/nuget.exe to download nuget?

[kazssym]

You should use ./vcpkg upgrade --no-dry-run instead of ./vcpkg install upgrade --no-dry-run,
Can you directly use the command https://dist.nuget.org/win-x86-commandline/v6.10.0/nuget.exe to download nuget?

The command was my mistake. It is indeed .\vcpkg.exe upgrade

[kazssym]

You should use ./vcpkg upgrade --no-dry-run instead of ./vcpkg install upgrade --no-dry-run,
Can you directly use the command https://dist.nuget.org/win-x86-commandline/v6.10.0/nuget.exe to download nuget?

nuget.exe was actually downloaded under downloads\tools. The major difference between the two nuget.exe versions is no "version" strong is found in the 6.10 output.

[DimRochette]

Same issue with a French OS/Version
Nuget tool is in french now and probably error parsing version

Nuget 6.2 (working)

NuGet Version: 6.2.1.2
usage: NuGet <command> [args] [options]
Type 'NuGet help <command>' for help on a specific command.

Nuget 6.10 (failed)

NuGet Version : 6.10.0.107
utilisation : NuGet <command> [args] [options]
Tapez 'NuGet help <command>' pour obtenir de l'aide sur une commande spécifique.

[kazssym]

I found code in vcpkg-tool expecting a fixed string to extract the nuget version as this:

                    return extract_prefixed_nonwhitespace("NuGet Version: ", Tools::NUGET, std::move(output), exe_path);

[DimRochette]

So the new space before the : break it

[dg0yt]

So the localisations break it:
en: NuGet Version: 6.2.1.2
fr: NuGet Version : 6.10.0.107
OP: NuGet バージョン: 6.10.0.107

[kazssym]

I reverted the changes in f33c861 locally as a workaround to use vcpkg.

[easyatm]

I found code in vcpkg-tool expecting a fixed string to extract the nuget version as this:

                    return extract_prefixed_nonwhitespace("NuGet Version: ", Tools::NUGET, std::move(output), exe_path);

I recompiled the vcpkg-tool according to this and successfully solved the problem of NuGet outputting localized strings.

[DimRochette]

If your are here the quick fixes for windows vcpkg main branch failing on non English OS

Either go back 2 months ago to latest official tag working
git checkout tags/2024.04.26

or just revert the problematic commit an use nugget 6.2
git revert f33c861

or recompile a vcpkg with the PR provided
microsoft/vcpkg-tool#1418

[kazssym]

microsoft/vcpkg-tool#1451 is another alternative pull request for vcpkg. The change should be minimal to solve this problem IMO.