setup vs2026 fail

Question

安装发生错误。

可以通过以下方法排查包故障:

1. 使用下面的搜索 URL 搜索每个包故障的解决方案

2. 修改对受影响工作负载或组件的选择，然后重试安装

3. 从计算机中删除产品，然后重新安装

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未能安装包“Microsoft.VisualStudio.VsWebProtocolSelector.Msi,version=18.8.11829.241”。

搜索 URL

    https://aka.ms/VSSetupErrorReports?q=PackageId=Microsoft.VisualStudio.VsWebProtocolSelector.Msi;PackageAction=Install;ReturnCode=1714

详细信息

    MSI: d:\ProgramData\Microsoft\VisualStudio\Packages\Microsoft.VisualStudio.VsWebProtocolSelector.Msi,version=18.8.11829.241\Microsoft.VisualStudio.VsWebProtocolSelector.Msi.msi，属性:  REBOOT=ReallySuppress ARPSYSTEMCOMPONENT=1  MSIFASTINSTALL="7"  VSEXTUI="1"  VSFOLDER="C:\Program Files (x86)\Microsoft Visual Studio\Shared" 

    返回代码: 1603

    返回代码详细信息: 安装时发生严重错误

    消息 ID: 1714

    消息详细信息: The older version of vs_vswebprotocolselectormsi cannot be removed.  Contact your technical support group.  

日志

    X:\Local\Temp\dd_setup_20260720121836_035_Microsoft.VisualStudio.VsWebProtocolSelector.Msi.log

受影响的工作负载

    Visual Studio 核心编辑器 (Microsoft.VisualStudio.Workload.CoreEditor,version=18.8.11829.241)

受影响的组件

    Visual Studio 核心编辑器 (Microsoft.VisualStudio.Component.CoreEditor,version=18.8.11901.359)

Answer 1

Thank you for sharing the error details.

The error indicates that Visual Studio cannot remove an older version of the VsWebProtocolSelector component, which is blocking the installation.

As a first step, please try the following:

1. Open Visual Studio Installer and select Repair for the existing Visual Studio installation, if available.
2. If the repair does not help, run the InstallCleanup.exe tool to remove incomplete or corrupted Visual Studio installation data.

• Open an elevated Command Prompt.
  • Navigate to:

         C:\Program Files (x86)\Microsoft Visual Studio\Installer
    

    • Run:

         InstallCleanup.exe -f
    

    1. Restart the machine.
    2. Download the latest Visual Studio installer and try the installation again.

If the issue still persists after these steps, please share the log file mentioned in the error:

X:\Local\Temp\dd_setup_20260720121836_035_Microsoft.VisualStudio.VsWebProtocolSelector.Msi.log

This will help identify why the older MSI package cannot be removed.