win 平台，xmake 为啥关联不到 vcpkg？

[githubnotebooks]

(base) PS Z:\Workspace\Project\cpp> echo $env:VCPKG_ROOT
  C:\Users\someone\Workspace\Repository\vcpkg
  (base) PS Z:\Workspace\Project\cpp> xmake
  checking for platform ... windows
  checking for architecture ... x64
  checking for Microsoft C/C++ Compiler (x64) ... ok
  checking for Microsoft Visual Studio (x64) version ... 2026
  updating repositories .. ok
  note: install or modify (m) these packages (pass -y to skip confirm)?
  in xmake-repo:
    -> cli11 v2.6.1 [license:BSD]
    -> cpptrace v1.0.4 [runtimes:"MD", license:MIT]
    -> fmt 12.1.0 [runtimes:"MD", license:MIT]
    -> benchmark v1.9.5 [runtimes:"MD", license:Apache-2.0]
    -> gtest v1.17.0 [runtimes:"MD", license:BSD-3]
    -> spdlog v1.17.0 [runtimes:"MD", license:MIT]
  in vcpkg:
    -> vcpkg::boost latest [shared:y, runtimes:"MD", cmake:n]
  please input: y (y/n/m)

    => install vcpkg::boost latest .. failed

  fetch vcpkg::boost-latest failed!
  if you want to get more verbose errors, please see:
    -> Z:\Workspace\Project\cpp\build\.packages\v\vcpkg_boost\latest\cache\installdir.failed\logs\install.txt

实际上，我在 vcpkg 中已经安装了 boost：

 (base) PS Z:\Workspace\Project\cpp> C:\Users\someone\Workspace\Repository\vcpkg\vcpkg.exe list
  boost-accumulators:x64-windows                    1.90.0#1            Boost accumulators module
  boost-algorithm:x64-windows                       1.90.0#1            Boost algorithm module
  boost-align:x64-windows                           1.90.0#1            Boost align module
  boost-align:x64-windows-static-md                 1.90.0#1            Boost align module
  boost-any:x64-windows                             1.90.0#1            Boost any module
  boost-array:x64-windows                           1.90.0#1            Boost array module
  boost-array:x64-windows-static-md                 1.90.0#1            Boost array module
  boost-asio:x64-windows                            1.90.0#1            Boost asio module

为啥 xmake 关联不到 vcpkg 呢？我使用如下命令也失败：

(base) PS Z:\Workspace\Project\cpp> xmake g --vcpkg=C:\Users\someone\Workspace\Repository\vcpkg
  configure
  {
      network = public
      theme = default
      vcpkg = C:\Users\someone\Workspace\Repository\vcpkg
      proxy_pac = pac.lua
  }
  (base) PS Z:\Workspace\Project\cpp> xmake
  checking for platform ... windows
  checking for architecture ... x64
  checking for Microsoft C/C++ Compiler (x64) ... ok
  checking for Microsoft Visual Studio (x64) version ... 2026
  note: install or modify (m) these packages (pass -y to skip confirm)?
  in vcpkg:
    -> vcpkg::boost latest [cmake:n, shared:y, runtimes:"MD"]
  in xmake-repo:
    -> cli11 v2.6.1 [license:BSD]
    -> cpptrace v1.0.4 [runtimes:"MD", license:MIT]
    -> fmt 12.1.0 [runtimes:"MD", license:MIT]
    -> benchmark v1.9.5 [runtimes:"MD", license:Apache-2.0]
    -> gtest v1.17.0 [runtimes:"MD", license:BSD-3]
    -> spdlog v1.17.0 [runtimes:"MD", license:MIT]
  please input: y (y/n/m)

    => install vcpkg::boost latest .. failed

  fetch vcpkg::boost-latest failed!
  if you want to get more verbose errors, please see:
    -> Z:\Workspace\Project\cpp\build\.packages\v\vcpkg_boost\latest\cache\installdir.failed\logs\install.txt

[waruqi]

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