Asp.net 包裹装载不好

我在我的项目中安装了MvcMailer包。所以我试着搭建脚手架，但没有成功。我在谷歌上搜索过这个。我得到了应该安装的建议 T4脚手架 和MVCScapfolding

然后我重新启动了我的VisualStudio。但不幸的是，当我从vs开始我的项目时 有些包裹装不好。脚手架包装。 似乎有冲突

错误消息如下

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\T4Scaffolding.Core.1.0.0\tools\init.ps1:50 char:9
+         Set-DefaultScaffolder -Name CustomTemplate -Scaffolder T4Scaffolding.Cus ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\T4Scaffolding.Core.1.0.0\tools\init.ps1:51 char:9
+         Set-DefaultScaffolder -Name CustomScaffolder -Scaffolder T4Scaffolding.C ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\T4Scaffolding.1.0.8\tools\init.ps1:6 char:1
+ Set-DefaultScaffolder -Name DbContext -Scaffolder T4Scaffolding.EFDbContext -Sol ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\T4Scaffolding.1.0.8\tools\init.ps1:7 char:1
+ Set-DefaultScaffolder -Name Repository -Scaffolder T4Scaffolding.EFRepository -S ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\MvcScaffolding.1.0.9\tools\init.ps1:47 char:1
+ Set-DefaultScaffolder -Name Controller -Scaffolder MvcScaffolding.Controller -So ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\MvcScaffolding.1.0.9\tools\init.ps1:48 char:1
+ Set-DefaultScaffolder -Name Views -Scaffolder MvcScaffolding.Views -SolutionWide ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\MvcScaffolding.1.0.9\tools\init.ps1:49 char:1
+ Set-DefaultScaffolder -Name Action -Scaffolder MvcScaffolding.Action -SolutionWi ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\MvcScaffolding.1.0.9\tools\init.ps1:50 char:1
+ Set-DefaultScaffolder -Name UnitTest -Scaffolder MvcScaffolding.ActionUnitTest - ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : Cannot get an instance of EnvDTE.DTE
At C:\Users\sk\Documents\Visual Studio 2013\Projects\LiveChatPrototype\packages\MvcScaffolding.1.0.9\tools\init.ps1:54 char:1
+ Set-DefaultScaffolder -Name View -Scaffolder $viewScaffolder -SolutionWide -DoNo ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], InvalidOperationException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

PM> 

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我面临着同样的问题，我可以通过以下步骤使其正常工作：

取消安装MvcMailer

取消安装MVCScapfolding和T4Scaffolding

在PackageManager控制台中设置正确的默认项目

如Scott本人所述，从命令安装程序包MvcScaffolding-Version 1.0.8-vs2013-Pre运行此命令

通过Nuget安装MvcMailer

运行此命令Scaffold-Mailer.Razor-UserMailer-Welcome，PasswordReset

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我知道这是不久前发布的，但是，我在使用MvcScaffolding时在VS2015中遇到了同样的错误。实际的bug存在于T4Scaffolding.Core包中。我提取了源代码，修复了bug，并上传了带有链接依赖项的新NuGet包。这3个新方案是：

首先卸载MvcScaffolding及其依赖项T4Scaffolding和T4Scaffolding.Core。如果您只需安装该软件包，其他软件包就可以通过。希望这对其他人有帮助。如果这解决了您的问题，请标记为已回答

干杯。

第一轮

卸载程序包MvcScaffolding-RemoveDependencies

关闭VSTD并删除packages文件夹（如果您有恢复丢失的packages）

重新打开项目

安装软件包MvcScaffolding-Version 1.0.8-vs2013-Pre（如果您有VSTD 2013）

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然后让我们来看一下脚手架控制器MyModel-Repository（哦，天哪，它在工作）

您是如何卸载T4Scaffolding.Core的？当我尝试这样做时，它说MvcMailer取决于它，您将希望使用PackageManager控制台。尝试键入：Uninstall package.Core-Force这是一个Force选项，即使它有依赖项也可以卸载。如果在安装了上面链接的新版本scaffolding之后，MvcMailer停止工作，那么我担心您可能需要下载MvcMailer的源代码，将依赖项更改为指向新包并重建包。然后，将其包括在内。让我知道你进展如何。干杯。