diff --git a/samples/Mvc.Server/Views/Account/ExternalLoginConfirmation.cshtml b/samples/Mvc.Server/Views/Account/ExternalLoginConfirmation.cshtml
index 59f9ba89..fcd3b186 100644
--- a/samples/Mvc.Server/Views/Account/ExternalLoginConfirmation.cshtml
+++ b/samples/Mvc.Server/Views/Account/ExternalLoginConfirmation.cshtml
@@ -9,7 +9,7 @@
 <form asp-controller="Account" asp-action="ExternalLoginConfirmation" asp-route-returnurl="@ViewData["ReturnUrl"]" method="post" class="form-horizontal" role="form">
     <h4>Association Form</h4>
     <hr />
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
 
     <p class="text-info">
         You've successfully authenticated with <strong>@ViewData["LoginProvider"]</strong>.
diff --git a/samples/Mvc.Server/Views/Account/ForgotPassword.cshtml b/samples/Mvc.Server/Views/Account/ForgotPassword.cshtml
index 5b38e85a..8400cc7e 100644
--- a/samples/Mvc.Server/Views/Account/ForgotPassword.cshtml
+++ b/samples/Mvc.Server/Views/Account/ForgotPassword.cshtml
@@ -11,7 +11,7 @@
 @*<form asp-controller="Account" asp-action="ForgotPassword" method="post" class="form-horizontal" role="form">
     <h4>Enter your email.</h4>
     <hr />
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
     <div class="form-group">
         <label asp-for="Email" class="col-md-2 control-label"></label>
         <div class="col-md-10">
diff --git a/samples/Mvc.Server/Views/Account/Login.cshtml b/samples/Mvc.Server/Views/Account/Login.cshtml
index b84db823..40b970d7 100644
--- a/samples/Mvc.Server/Views/Account/Login.cshtml
+++ b/samples/Mvc.Server/Views/Account/Login.cshtml
@@ -15,7 +15,7 @@
             <form asp-controller="Account" asp-action="Login" asp-route-returnurl="@ViewData["ReturnUrl"]" method="post" class="form-horizontal" role="form">
                 <h4>Use a local account to log in.</h4>
                 <hr />
-                <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+                <div asp-validation-summary="All" class="text-danger"></div>
                 <div class="form-group">
                     <label asp-for="Email" class="col-md-2 control-label"></label>
                     <div class="col-md-10">
diff --git a/samples/Mvc.Server/Views/Account/Register.cshtml b/samples/Mvc.Server/Views/Account/Register.cshtml
index 8c9bb643..79870283 100644
--- a/samples/Mvc.Server/Views/Account/Register.cshtml
+++ b/samples/Mvc.Server/Views/Account/Register.cshtml
@@ -8,7 +8,7 @@
 <form asp-controller="Account" asp-action="Register" asp-route-returnUrl="@ViewData["returnUrl"]" method="post" class="form-horizontal" role="form">
     <h4>Create a new account.</h4>
     <hr />
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
     <div class="form-group">
         <label asp-for="Email" class="col-md-2 control-label"></label>
         <div class="col-md-10">
diff --git a/samples/Mvc.Server/Views/Account/ResetPassword.cshtml b/samples/Mvc.Server/Views/Account/ResetPassword.cshtml
index 7ddf52f9..8ab27b68 100644
--- a/samples/Mvc.Server/Views/Account/ResetPassword.cshtml
+++ b/samples/Mvc.Server/Views/Account/ResetPassword.cshtml
@@ -8,7 +8,7 @@
 <form asp-controller="Account" asp-action="ResetPassword" method="post" class="form-horizontal" role="form">
     <h4>Reset your password.</h4>
     <hr />
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
     <input asp-for="Code" type="hidden" />
     <div class="form-group">
         <label asp-for="Email" class="col-md-2 control-label"></label>
diff --git a/samples/Mvc.Server/Views/Account/VerifyCode.cshtml b/samples/Mvc.Server/Views/Account/VerifyCode.cshtml
index af98c78f..3689cbba 100644
--- a/samples/Mvc.Server/Views/Account/VerifyCode.cshtml
+++ b/samples/Mvc.Server/Views/Account/VerifyCode.cshtml
@@ -6,7 +6,7 @@
 <h2>@ViewData["Title"].</h2>
 
 <form asp-controller="Account" asp-action="VerifyCode" asp-route-returnurl="@ViewData["ReturnUrl"]" method="post" class="form-horizontal" role="form">
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
     <input asp-for="Provider" type="hidden" />
     <input asp-for="RememberMe" type="hidden" />
     <h4>@ViewData["Status"]</h4>
diff --git a/samples/Mvc.Server/Views/Manage/AddPhoneNumber.cshtml b/samples/Mvc.Server/Views/Manage/AddPhoneNumber.cshtml
index daf3bb26..1e09409c 100644
--- a/samples/Mvc.Server/Views/Manage/AddPhoneNumber.cshtml
+++ b/samples/Mvc.Server/Views/Manage/AddPhoneNumber.cshtml
@@ -7,7 +7,7 @@
 <form asp-controller="Manage" asp-action="AddPhoneNumber" method="post" class="form-horizontal" role="form">
     <h4>Add a phone number.</h4>
     <hr />
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
     <div class="form-group">
         <label asp-for="PhoneNumber" class="col-md-2 control-label"></label>
         <div class="col-md-10">
diff --git a/samples/Mvc.Server/Views/Manage/ChangePassword.cshtml b/samples/Mvc.Server/Views/Manage/ChangePassword.cshtml
index ce0e7576..6127082d 100644
--- a/samples/Mvc.Server/Views/Manage/ChangePassword.cshtml
+++ b/samples/Mvc.Server/Views/Manage/ChangePassword.cshtml
@@ -8,7 +8,7 @@
 <form asp-controller="Manage" asp-action="ChangePassword" method="post" class="form-horizontal" role="form">
     <h4>Change Password Form</h4>
     <hr />
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
     <div class="form-group">
         <label asp-for="OldPassword" class="col-md-2 control-label"></label>
         <div class="col-md-10">
diff --git a/samples/Mvc.Server/Views/Manage/SetPassword.cshtml b/samples/Mvc.Server/Views/Manage/SetPassword.cshtml
index d7c72a93..d1a1b77a 100644
--- a/samples/Mvc.Server/Views/Manage/SetPassword.cshtml
+++ b/samples/Mvc.Server/Views/Manage/SetPassword.cshtml
@@ -11,7 +11,7 @@
 <form asp-controller="Manage" asp-action="SetPassword" asp-route-returnurl="@ViewData["ReturnUrl"]" method="post" class="form-horizontal" role="form">
     <h4>Set your password</h4>
     <hr />
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
     <div class="form-group">
         <label asp-for="NewPassword" class="col-md-2 control-label"></label>
         <div class="col-md-10">
diff --git a/samples/Mvc.Server/Views/Manage/VerifyPhoneNumber.cshtml b/samples/Mvc.Server/Views/Manage/VerifyPhoneNumber.cshtml
index a0e508db..17787816 100644
--- a/samples/Mvc.Server/Views/Manage/VerifyPhoneNumber.cshtml
+++ b/samples/Mvc.Server/Views/Manage/VerifyPhoneNumber.cshtml
@@ -10,7 +10,7 @@
     <h4>Add a phone number.</h4>
     <h5>@ViewData["Status"]</h5>
     <hr />
-    <div asp-validation-summary="ValidationSummary.All" class="text-danger"></div>
+    <div asp-validation-summary="All" class="text-danger"></div>
     <div class="form-group">
         <label asp-for="Code" class="col-md-2 control-label"></label>
         <div class="col-md-10">
diff --git a/samples/Mvc.Server/Views/_ViewImports.cshtml b/samples/Mvc.Server/Views/_ViewImports.cshtml
index 64bb4562..d8fff825 100644
--- a/samples/Mvc.Server/Views/_ViewImports.cshtml
+++ b/samples/Mvc.Server/Views/_ViewImports.cshtml
@@ -3,4 +3,4 @@
 @using Mvc.Server.ViewModels.Account
 @using Mvc.Server.ViewModels.Manage
 @using Microsoft.AspNet.Identity
-@addTagHelper "*, Microsoft.AspNet.Mvc.TagHelpers"
+@addTagHelper *, Microsoft.AspNet.Mvc.TagHelpers