The 'packages' element is not declared

Question

When using the asp.net mvc 3 project with vs 2010, I have a lot of warnings like the ones below:

Interestingly, I did something wrong, and I need to change something, because this is a project out of the box that comes with Visual Studio.

Warning 1 The 'packages' element is not declared. C: \ Users \ LUIS.SIMBIOS \ Documents \ Visual Studio 2010 \ Projects \ SlnHR \ HR \ packages.config 2 2 HR

Warning 2 Verification (XHTML 1.0 Transitional): The 'charset' attribute is not a valid meta element attribute. C: \ Users \ LUIS.SIMBIOS \ Documents \ Visual Studio 2010 \ Projects \ SlnHR \ HR \ Views \ Shared_Layout.cshtml 4 11 HR

Warning 20 Error 6002: the primary key is not specified in the table / view "HR.dbo.vw_aspnet_Users". The key was inferred and the definition was created as a table / read-only view. C: \ Users \ LUIS.SIMBIOS \ Documents \ Visual Studio 2010 \ Projects \ SlnHR \ HRRazorForms \ Models \ HR.edmx 1 1 HRRazorForms

web.config

<?xml version="1.0"?> <!-- For more information on how to configure your ASP.NET application, please visit http://go.microsoft.com/fwlink/?LinkId=152368 --> <configuration> <connectionStrings> <add name="ApplicationServices" connectionString="data source=xx; User Id=development; Password=xxxxx; Initial Catalog=HR" providerName="System.Data.SqlClient" /> <add name="HREntities" connectionString="metadata=res://*/Models.HR.csdl|res://*/Models.HR.ssdl|res://*/Models.HR.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=xxxx;Initial Catalog=HR;User ID=development;Password=xxxx;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /></connectionStrings> <appSettings> <add key="webpages:Version" value="1.0.0.0" /> <add key="ClientValidationEnabled" value="true" /> <add key="UnobtrusiveJavaScriptEnabled" value="true" /> </appSettings> <system.web> <compilation debug="true" targetFramework="4.0"> <assemblies> <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Web.Helpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" /></assemblies> </compilation> <authentication mode="Forms"> <forms loginUrl="~/Account/LogOn" timeout="2880" /> </authentication> <membership> <providers> <clear /> <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" /> </providers> </membership> <profile> <providers> <clear /> <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/" /> </providers> </profile> <roleManager enabled="false"> <providers> <clear /> <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" /> <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" /> </providers> </roleManager> <pages> <namespaces> <add namespace="System.Web.Helpers" /> <add namespace="System.Web.Mvc" /> <add namespace="System.Web.Mvc.Ajax" /> <add namespace="System.Web.Mvc.Html" /> <add namespace="System.Web.Routing" /> <add namespace="System.Web.WebPages" /> </namespaces> </pages> </system.web> <system.webServer> <validation validateIntegratedModeConfiguration="false" /> <modules runAllManagedModulesForAllRequests="true" /> </system.webServer> <runtime> <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> <dependentAssembly> <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" /> <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="3.0.0.0" /> </dependentAssembly> </assemblyBinding> </runtime> </configuration> 

packages.config

 <?xml version="1.0" encoding="utf-8"?> <packages> <package id="EntityFramework" version="4.1.10331.0" /> <package id="jQuery" version="1.5.1" /> <package id="jQuery.UI.Combined" version="1.8.11" /> <package id="jQuery.Validation" version="1.8.0" /> <package id="jQuery.vsdoc" version="1.5.1" /> <package id="Modernizr" version="1.7" /> </packages> 

Answer 1

Taken from this answer .

• Close the packages.config file.
• Build
• The warning is gone!

This is the first time I see that ignoring a problem actually makes it go away ...

Answer 2

Use <packages xmlns="urn:packages"> instead of <packages>

Answer 3

Oh well, now I understand. You can ignore this - the XML is simply incorrect for this - the package element is really not declared (the link to the scheme is missing or not). I think this is a known small bug that will not do anything, because only NuGet will use this.

See also this question .

Answer 4

Change node to and create a file, package.xsd, in the same folder (and include it in the project) with the following contents:

 <?xml version="1.0" encoding="utf-8" ?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="urn:packages" xmlns="urn:packages"> <xs:element name="packages"> <xs:complexType> <xs:sequence> <xs:element name="package" maxOccurs="unbounded"> <xs:complexType> <xs:attribute name="id" type="xs:string" use="required" /> <xs:attribute name="version" type="xs:string" use="required" /> <xs:attribute name="targetFramework" type="xs:string" use="optional" /> <xs:attribute name="allowedVersions" type="xs:string" use="optional" /> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> </xs:schema> 

Answer 5

You can also find a copy of nuspec.xsd here, as it is no longer available:

https://gist.github.com/sharwell/6131243