packages not loading well

Question

I installed the MvcMailer package in my project. So I was trying to do the scaffolding but it did not work. I googled on this. I got advices that I should install T4Scaffolding and MvcScaffolding

Which I did and restarted my visual studio. but unfortunately when start my project from vs some package dont get to load well. The scaffolding packages. Seem there is a conflict.

Error message is bellow

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> 

Answer 1

I faced the same issue and I could get it working by these steps:

1. Un-install MvcMailer.
2. Un-install MvcScaffolding and T4Scaffolding.
3. Set the correct Default Project in Package Manager Console.
4. Run this from command Install-Package MvcScaffolding -Version 1.0.8-vs2013 -Pre as mentioned by Scott himself here.
5. Install MvcMailer through Nuget.
6. Run this command Scaffold Mailer.Razor UserMailer Welcome,PasswordReset

Answer 2

I know this was posted a while ago, but, I came across this same bug in VS2015 whilst using MvcScaffolding. The actual bug lies in the T4Scaffolding.Core package. I pulled the source, fixed the bugs, and uploaded new NuGet packages with linked dependencies. The 3 new packages are:

• MvcScaffolding.VS2015
• T4Scaffolding.VS2015
• T4Scaffolding.Core.VS2015

First uninstall MvcScaffolding and its dependencies, T4Scaffolding, & T4Scaffolding.Core. If you then simply install the MvcScaffolding package, the other packages will be pulled through. Hope this helps someone else. Please mark as answered if this resolves your issue.

Cheers.

Answer 3

first Run

1. Uninstall-Package MvcScaffolding -RemoveDependencies
2. Close the VSTD and delete the packages folder (if you have restore missing packadges)
3. Re-Open the project
4. Install-Package MvcScaffolding -Version 1.0.8-vs2013 -Pre (if you have VSTD 2013)

And then let's Scaffolding Controller MyModel -Repository (oh God it's Working)