无法索引到System.Xml.XPathNodeList类型的对象

Question

Visual Studio 2015 + Framework 4.5 + Nuget Package Manager控制台+通过命令安装Umbraco7（Install-Package uCommerce.Umbraco7“）=出现以下错误：

Unable to index into an object of type System.Xml.XPathNodeList.
At E:\ShopKart\packages\uCommerce.Umbraco7.8.0.0.18352\tools\install.ps1:59 char:129
+     $perRequestLifestyleHttpModulesElement = $webConfig.SelectNodes("//system.web//httpModules//add[@name='PerRequestLifestyle']")[
 <<<< 0]
    + CategoryInfo          : InvalidOperation: (0:Int32) [], RuntimeException
    + FullyQualifiedErrorId : CannotIndex

Answer 1

该软件包不包含Umbraco 7，而是包含UCommerce for Umbraco 7：-/试试安装软件包UmbracoCms吗？