在 vs 2010 中使用 asp.net mvc 3 项目时，我收到很多警告，如下所示:

我想知道我是否做错了什么，我需要更改一些东西，因为这是 Visual Studio 中自带的开箱即用的项目。

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

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

网络配置

<?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>

最佳答案

取自this answer .

1. 关闭您的packages.config 文件。
2. build
3. 警告消失了!

这是我第一次看到忽略问题实际上让它消失了......

Edit in 2020: if you are viewing this warning, consider upgrading to PackageReference if you can

关于xml - 'packages' 元素未声明，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7684398/