I want to know exactly what mistake I have made.
Is that about upgrade or downgrade the assembly? If that's right what and how can I fix it??
When i run my project this msg appear
Compiler Error Message: CS1705: Assembly 'GridMvc, Version=2.0.4.0, Culture=neutral, PublicKeyToken=null' uses 'System.Web.Mvc, Version=4.0.0.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35' which has a higher version than referenced assembly 'System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'
<packages>
<package id="bootstrap" version="3.3.7" targetFramework="net45" />
<package id="DotNetOpenAuth.AspNet" version="4.0.3.12153" targetFramework="net45" />
<package id="DotNetOpenAuth.Core" version="4.0.3.12153" targetFramework="net45" />
<package id="DotNetOpenAuth.OAuth.Consumer" version="4.0.3.12153" targetFramework="net45" />
<package id="DotNetOpenAuth.OAuth.Core" version="4.0.3.12153" targetFramework="net45" />
<package id="DotNetOpenAuth.OpenId.Core" version="4.0.3.12153" targetFramework="net45" />
<package id="DotNetOpenAuth.OpenId.RelyingParty" version="4.0.3.12153" targetFramework="net45" />
<package id="EntityFramework" version="6.1.3" targetFramework="net45" />
<package id="Grid.Mvc" version="3.0.0" targetFramework="net45" />
<package id="Grid.Mvc.Ajax" version="1.0.31" targetFramework="net45" />
<package id="Grid.Mvc.DatePicker" version="1.0.0" targetFramework="net45" />
<package id="Grid.Mvc.Redux" version="1.0.4" targetFramework="net45" />
<package id="jQuery" version="3.1.1" targetFramework="net45" />
<package id="jquery.jstree" version="3.3.3.3" targetFramework="net45" />
<package id="jQuery.UI.Combined" version="1.12.1" targetFramework="net45" />
<package id="jQuery.Validation" version="1.16.0" targetFramework="net45" />
<package id="jsTree" version="3.1.1.2" targetFramework="net45" />
<package id="knockoutjs" version="2.1.0" targetFramework="net45" />
<package id="Microsoft.AspNet.Mvc" version="4.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.Razor" version="2.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.Web.Optimization" version="1.0.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi" version="4.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.Client" version="4.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.Core" version="4.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.WebHost" version="4.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebPages" version="2.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebPages.Data" version="2.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebPages.OAuth" version="2.0.20710.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebPages.WebData" version="2.0.20710.0" targetFramework="net45" />
<package id="Microsoft.jQuery.Unobtrusive.Ajax" version="2.0.30506.0" targetFramework="net45" />
<package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.3" targetFramework="net45" />
<package id="Microsoft.Net.Http" version="2.0.20710.0" targetFramework="net45" />
<package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
<package id="Modernizr" version="2.5.3" targetFramework="net45" />
<package id="Newtonsoft.Json" version="4.5.6" targetFramework="net45" />
<package id="WebGrease" version="1.1.0" targetFramework="net45" />
</packages>
web config
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>