title: Nuget scaffolding installation failure
body: <p>I am trying to install scaffolding package in VS2010 SP1 in MVC4(aim is to user MvcMailer), here are the command I run</p>
  
  <pre><code>PM&gt; install-package T4Scaffolding
  PM&gt; install-package MvcScaffolding
  </code></pre>
  
  <p>and installing T4Scaffolding gives me this error:</p>
  
  <blockquote>
    <p>Import-Module : Could not load file or assembly
    'file:///path/packages\T4Scaffolding.1.0.5\tools\T4Scaffolding.dll' or
    one of its dependencies. Operation is not supported. (Exception from 
    HRESULT: 0x80131515)</p>
  </blockquote>
  
  <p>if I use installed it again, it installed but when I use Scaffolding command gives me this error</p>
  
  <pre><code>PM&gt; Scaffolding Mailer.Razor UserMailer subs
  </code></pre>
  
  <blockquote>
    <p>The term 'Scaffolding' is not recognized as the name of a cmdlet,
    function, script file, or operable program. Check the spelling of the
    name, or if a path was included, verify that the path is correct and
    try again. At line:1 char:12
    + Scaffolding &lt;&lt;&lt;&lt;  Mailer.Razor UserMailer subs
        + CategoryInfo          : ObjectNotFound: (Scaffolding:String) [], CommandNotFoundException
        + FullyQualifiedErrorId : CommandNotFoundException</p>
  </blockquote>
  
  <p>I tried uninstalling and deleting the packages and re installing but no luck.  I tried update command on both packages but nothing.</p>
  
  <p>When I run import-module "dllpath"</p>
  
  <p>I get same error message i.e. </p>
  
  <blockquote>
    <p>Could not load file or assembly
    'file:///path/packages\T4Scaffolding.1.0.5\tools\T4Scaffolding.dll' or
    one of its dependencies. Operation is not supported. (Exception from 
    HRESULT: 0x80131515)</p>
  </blockquote>
  
  <p>Tried restarting VS after uninstall, install, reinstall all possible but nothing changed. </p>
  
  <p>What I am doing wrong.</p>
  
  <p>EDIT: I have tried to use power shell </p>
  
  <blockquote>
    <p>PS C:\Windows\system32> import-module
    "path\T4Scaffolding.1.0.5\tools\T4Scaffolding.dll" Import-Module :
    Could not load file or assembly
    'file:///path\T4Scaffolding.1.0.5\tools\T4Scaffolding.d ll' or one of
    its dependencies. This assembly is built by a runtime newer than the
    currently loaded runtime and cannot be loaded. At line:1 char:14
    + import-module &lt;&lt;&lt;&lt;  "path\T4Scaffolding.1.0.5\tools\T4Scaffolding.dll"
        + CategoryInfo          : NotSpecified: (:) [Import-Module], BadImageFormatException
        + FullyQualifiedErrorId : 
    System.BadImageFormatException,Microsoft.PowerShell.Commands.ImportModuleCommand</p>
  </blockquote>
  
  <p>It gives error "This assembly is built by a runtime newer than the currently loaded runtime and cannot
  be loaded." I believe here is the start failing point. Any idea? how to fix this first. </p>