我正在尝试安装Windows 10 IoT核心版仪表板，但是ClickOnce安装程序失败。

我得到的日志文件的顶部是：

PLATFORM VERSION INFO
    Windows             : 10.0.17763.0 (Win32NT)
    Common Language Runtime     : 4.0.30319.42000
    System.Deployment.dll       : 4.8.3761.0 built by: NET48REL1
    clr.dll             : 4.8.4042.0 built by: NET48REL1LAST_C
    dfdll.dll           : 4.8.3761.0 built by: NET48REL1
    dfshim.dll          : 10.0.17763.1 (WinBuild.160101.0800)

SOURCES
    Deployment url          : https://iottools.blob.core.windows.net/iotdashboard/Windows10IoTCoreDashboard.application

ERROR SUMMARY
    Below is a summary of the errors,details of these errors are listed later in the log.
    * activation of https://iottools.blob.core.windows.net/iotdashboard/Windows10IoTCoreDashboard.application resulted in exception. Following failure messages were detected:
        + Configuration system failed to initialize
        + Unrecognized configuration section startup. (**C:\Windows\microsoft.NET\Framework64\v4.0.30319\dfsvc.exe.Config** line 2)

dfsvc.exe.Config文件为：

<configuration>
    <appSettings>
      <add key="EnableWindowsFormsHighDpiautoResizing" value="true"/>
    </appSettings>
    <runtime>
      <!-- AppContextSwitchOverrides values are in the form of 'key1=true|false;key2=true|false -->
      <!-- Enabling newer accessibility features (e.g. UseLegacyaccessibilityFeatures.2=false) requires all older accessibility features to be enabled (e.g. UseLegacyaccessibilityFeatures=false) -->
      <AppContextSwitchOverrides value="Switch.System.Net.DontEnableSchUseStrongCrypto=false;Switch.UseLegacyaccessibilityFeatures=false;Switch.UseLegacyaccessibilityFeatures.2=false;Switch.UseLegacyaccessibilityFeatures.3=false;Switch.System.Windows.Forms.UseLegacyImages=false" />
    </runtime>
</configuration>

到目前为止，我发现的唯一想法是运行NetFxRepair工具并删除ClickOnce缓存，但是它们似乎都没有改变。我已经安装了VS2019 Previe3w和VS2017