MvcScaffolding NuGet 安装：“已添加具有相同密钥的项目”

Question

我通过 NuGet 安装 MvcScaffolding 时遇到错误。有人对如何解决这个问题有任何建议吗？

PM> install-Package MvcScaffolding -Verbose
Dependency 'T4Scaffolding (≥ 1.0.0)' already installed.
Dependency 'EntityFramework (≥ 4.1.10311.0)' already installed.
Added file 'InstallationDummyFile.txt' to folder 'MvcScaffolding.1.0.0\content'.
Added file 'Action.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\Action'.
Added file 'Action.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\Action'.
Added file 'ActionPost.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\Action'.
Added file 'ActionPost.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\Action'.
Added file 'MvcScaffolding.Action.ps1' to folder 'MvcScaffolding.1.0.0\tools\Action'.
Added file 'ViewModel.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\Action'.
Added file 'ViewModel.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\Action'.
Added file 'MvcScaffolding.ActionUnitTest.ps1' to folder 'MvcScaffolding.1.0.0\tools\ActionUnitTest'.
Added file 'TestClass.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\ActionUnitTest'.
Added file 'TestClass.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\ActionUnitTest'.
Added file 'TestMethod.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\ActionUnitTest'.
Added file 'TestMethod.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\ActionUnitTest'.
Added file 'MvcScaffolding.ActionWithUnitTest.ps1' to folder 'MvcScaffolding.1.0.0\tools\ActionWithUnitTest'.
Added file 'Create.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Create.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'CreateOrEdit.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'CreateOrEdit.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Delete.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Delete.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Details.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Details.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Edit.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Edit.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Empty.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Empty.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Index.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'Index.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'MvcScaffolding.AspxView.ps1' to folder 'MvcScaffolding.1.0.0\tools\AspxView'.
Added file 'ControllerWithContext.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\Controller'.
Added file 'ControllerWithContext.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\Controller'.
Added file 'ControllerWithRepository.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\Controller'.
Added file 'ControllerWithRepository.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\Controller'.
Added file 'MvcScaffolding.Controller.ps1' to folder 'MvcScaffolding.1.0.0\tools\Controller'.
Added file 'MvcScaffolding.ControllerWithRepository.ps1' to folder 'MvcScaffolding.1.0.0\tools\Controller'.
Added file 'init.ps1' to folder 'MvcScaffolding.1.0.0\tools'.
Added file 'install.ps1' to folder 'MvcScaffolding.1.0.0\tools'.
Added file 'Create.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Create.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Delete.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Delete.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Details.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Details.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Edit.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Edit.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Empty.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Empty.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Index.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'Index.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'MvcScaffolding.RazorView.ps1' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file '_CreateOrEdit.cs.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file '_CreateOrEdit.vb.t4' to folder 'MvcScaffolding.1.0.0\tools\RazorView'.
Added file 'registerWithMvcTooling.ps1' to folder 'MvcScaffolding.1.0.0\tools'.
Added file 'MvcScaffolding.Views.ps1' to folder 'MvcScaffolding.1.0.0\tools\Views'.
Added file 'MvcScaffolding.1.0.0.nupkg' to folder 'MvcScaffolding.1.0.0'.
Successfully installed 'MvcScaffolding 1.0.0'.
Executing script file 'C:\MyProject\packages\MvcScaffolding.1.0.0\tools\init.ps1'.
Added file 'InstallationDummyFile.txt'.
Added file 'InstallationDummyFile.txt' to project 'ReinsuranceManagementWebUI'
Added file 'packages.config'.
Added file 'packages.config' to project 'ReinsuranceManagementWebUI'
Successfully added 'MvcScaffolding 1.0.0' to ReinsuranceManagementWebUI.
Executing script file 'C:\MyProject\packages\MvcScaffolding.1.0.0\tools\install.ps1'.
Get-ProjectItem : An item with the same key has already been added.
At C:\MyProject\packages\MvcScaffolding.1.0.0\tools\install.ps1:22 char:16
+ Get-ProjectItem <<<<  "InstallationDummyFile.txt" -Project $projectName | %{ $_.Delete() }
    + CategoryInfo          : NotSpecified: (:) [Get-ProjectItem], ArgumentException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.GetProjectItemCmdlet

Set-DefaultScaffolder : An item with the same key has already been added.
At C:\MyProject\packages\MvcScaffolding.1.0.0\tools\install.ps1:24 char:22
+ Set-DefaultScaffolder <<<<  -Name Controller -Scaffolder MvcScaffolding.Controller -SolutionWide -DoNotOverwriteExistingSetting
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], ArgumentException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : An item with the same key has already been added.
At C:\MyProject\packages\MvcScaffolding.1.0.0\tools\install.ps1:25 char:22
+ Set-DefaultScaffolder <<<<  -Name Views -Scaffolder MvcScaffolding.Views -SolutionWide -DoNotOverwriteExistingSetting
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], ArgumentException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : An item with the same key has already been added.
At C:\MyProject\packages\MvcScaffolding.1.0.0\tools\install.ps1:26 char:22
+ Set-DefaultScaffolder <<<<  -Name Action -Scaffolder MvcScaffolding.Action -SolutionWide -DoNotOverwriteExistingSetting
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], ArgumentException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : An item with the same key has already been added.
At C:\MyProject\packages\MvcScaffolding.1.0.0\tools\install.ps1:27 char:22
+ Set-DefaultScaffolder <<<<  -Name UnitTest -Scaffolder MvcScaffolding.ActionUnitTest -SolutionWide -DoNotOverwriteExistingSetting
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], ArgumentException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

Set-DefaultScaffolder : An item with the same key has already been added.
At C:\MyProject\packages\MvcScaffolding.1.0.0\tools\install.ps1:31 char:22
+ Set-DefaultScaffolder <<<<  -Name View -Scaffolder $viewScaffolder -SolutionWide -DoNotOverwriteExistingSetting
    + CategoryInfo          : NotSpecified: (:) [Set-DefaultScaffolder], ArgumentException
    + FullyQualifiedErrorId : T4Scaffolding.Cmdlets.SetDefaultScaffolderCmdlet

我尝试使用以下命令卸载重新安装：

Uninstall-Package MvcScaffolding -RemoveDependencies

Answer 1

我也遇到了这个错误的问题。对我有用的是卸载 MvcScaffolding 及其每个依赖项，每次卸载时使用单独的命令，如“Uninstall-Package T4Scaffolding”中所示。我还从我的驱动器和源代码管理中删除了它们的关联文件和文件夹。然后，我重新安装，一切正常。文件的删除似乎是关键。

Answer 2

正如对原始问题的评论中提到的，我相信这是 MVC Scaffolding 中的一个错误，请参阅： http:// /mvcscaffolding.codeplex.com/workitem/27