I have a WCF Service application that uses EntityFramework 5.0.0 and when I called the method that uses the EDMX framework I get the below given message.
The server encountered an error processing the request. The exception message is 'Could not load file or assembly 'EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.'. See server logs for more details.
Here are my config snippets:
App.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="v11.0" />
</parameters>
</defaultConnectionFactory>
</entityFramework>
</configuration>
Packages.config
<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="EntityFramework" version="5.0.0" targetFramework="net45" />
</packages>
Web.config
<assemblyBinding>
<dependentAssembly>
<assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
</dependentAssembly>
</assemblyBinding>
Am I missing anything? What do I have to check?
Help Please!!
.NET 4.5 is required. However, EF5 will run on .NET 4
So you have to check that IIS Application pool is configured to support .Net FrameWork 4.0.
For example: Sharepoint 2010 requires ASP.Net 3.5, so it does not support EF5.
Summary with the help of #Ruslan-Dayanov:
Configure and Use the Fusion Log Viewer to see where the service looks for the dll. Make sure the dll is available in that location.
References
How to configure Fusion Log: Hanselman's Guide
MSDN article on Fusion Log Viewer: Click Here
Related
Recently I posted a couple of errors I was having, relating to app.config in a VB project. Andrew Morton kindly pointed me to an existing answer which resolved the first part of the issue, but I've since found that I still can't add/update variables in app.config via the Settings dialog in the project properties, nor can the Settings dialog read the app.config file.
The error message is:
an error occurred while reading the app.config file. the file might be corrupted
If I manually change the variable in app.config the program I'm coding still finds the old value as it's taking it from Settings.Designer.vb, and that's not getting updated when I change the variable in Settings as the platform isn't reading the app.config.
I've (again) run the app.config through an XML checker, all fine. I read one solution for this issue, which suggested the cause can be duplicate elements in the 'sectionGroup' area of app.config, but mine doesn't appear to have duplicate elements (app.config posted).
Steps I have tried are:
Removed and re-added the project from the solution.
Updated VS.
Repaired VS.
Deleted the app.config file and the variables from the Project Properties - System dialog, then added a new app.config and recreated the variables in the System dialog.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="system.diagnostics" type="System.Diagnostics.DiagnosticsConfigurationHandler"/>
<sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System.Configuration.ConfigurationManager, Version=5.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" >
<section name="Doghunter.My.MySettings" type="System.Configuration.ClientSettingsSection, System.Configuration.ConfigurationManager, Version=5.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" requirePermission="false" />
</sectionGroup>
</configSections>
<system.diagnostics>
<sources>
<!-- This section defines the logging configuration for My.Application.Log -->
<source name="DefaultSource" switchName="DefaultSwitch">
<listeners>
<add name="FileLog"/>
<!-- Uncomment the below section to write to the Application Event Log -->
<!--<add name="EventLog"/>-->
</listeners>
</source>
</sources>
<switches>
<add name="DefaultSwitch" value="Information" />
</switches>
<sharedListeners>
<add name="FileLog"
type="Microsoft.VisualBasic.Logging.FileLogTraceListener, Microsoft.VisualBasic, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL"
initializeData="FileLogWriter"/>
<!-- Uncomment the below section and replace APPLICATION_NAME with the name of your application to write to the Application Event Log -->
<add name="EventLog" type="System.Diagnostics.EventLogTraceListener" initializeData="Doghunter"/>
</sharedListeners>
</system.diagnostics>
<applicationSettings>
<Doghunter.My.MySettings>
<setting name="TestKey" serializeAs="String">
<value>Henry</value>
</setting>
<setting name="NewKey" serializeAs="String">
<value>Moscow</value>
</setting>
</Doghunter.My.MySettings>
</applicationSettings>
</configuration>
Rebuilding the project as a Windows Forms Application (.Net Framework 4.7.2) resolved it.
Originally chose 'plain' Windows Forms Application, which used 5.0
No idea why this is the case, but now works so all good.
Using Visual Studio 2015 & Sitecore 8.0
I have created a new MVC project with .Net Framework 4.6.1, copied, and referenced the Sitecore.kernel.dll & Sitecore.mvc.dll. Replaced the existing web.config & global.asax with the sitecore files.
Added a plain HTML page in the solution and tried to browse it (from VS). The page opens with this error
Could not load file or assembly 'System.Web.Http, Version=5.1.0.0,
Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its
dependencies. The system cannot find the file specified.
This HTML page is not published to Sitecore yet. I'm guessing, the Sitecore.mvc.dll wants MVC 5.1.0 and the MVC in VS project is 4.0.
So, I tried the following steps.
Run install package command in package manager console for MVC 5.1.1 which shows the error
Unable to load the service index for source
https://api.nuget.org/v3/index.json.
Deleted the %AppData%\NuGet\nuget.config and restarted VS2015
Manually browsed https://api.nuget.org/v3/index.json, but the page doesn't load - Secure connection failed. But this - http://api.nuget.org/v3/index.json will promt to download the json. So, in the nuget changed https to http, but its the same error - Unable to load the service index...
I'm not even able to start my first Sitecore MVC project when this happens.
I replaced the sitecore web.config with the regular VS project's web.config and now I'm able to browse the page. I set its Copy To Output Directory to Do not copy, so that it will not get published.
Will I be able to proceed with my Sitecore development this way without any major issues in future.
You need to do a few things to fix this:
Your VS project should be updated to have the web.config file from the Sitecore installation. You must have the Sitecore version of that file or Sitecore will not run correctly
You should add a binding redirect for the MVC file that makes everything use the latest version:
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
</dependentAssembly>
</assemblyBinding>
etc....
</runtime>
Make sure that the web.config file in your /views folder contains the correct versions of all the MVC assemblies. This is mine for a .net 4.6 application:
<configSections>
<sectionGroup name="system.web.webPages.razor"
type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="host"
type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
requirePermission="false" />
<section name="pages"
type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
requirePermission="false" />
</sectionGroup>
</configSections>
<system.web.webPages.razor>
<host
factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<pages pageBaseType="System.Web.Mvc.WebViewPage">
<namespaces>
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespace="System.Web.Mvc.Html" />
<add namespace="System.Web.Optimization" />
<add namespace="System.Web.Routing" />
<add namespace="Sitecore.Mvc" />
<add namespace="Sitecore" />
</namespaces>
</pages>
</system.web.webPages.razor>
Once that is done, your Sitecore installation should pick up the latest MVC binaries correctly.
I use Visual studio 2013 (Windows) to build a small .NET 4.5 application using Npgsql and Entity Framework 6.
On windows it just works fine.
But on Raspbian, the app crash saying it cannot find npgsql provider.
Unhandled Exception:
System.Configuration.ConfigurationErrorsException: Failed to find or load the registered .Net Framework Data Provider 'Npgsql'.
at System.Data.Common.DbProviderFactories.GetFactory (System.String providerInvariantName) [0x00000] in <filename unknown>:0
[...]
On my raspberry pi 2.
I have manually installed Mono v4.0.2
I have copied my app including:
npgsql.dll v2.2.5.0
npgsql.entityframework same version
mono.security v4.0.2
and my app.config contains :
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<entityFramework>
<providers>
<provider invariantName="Npgsql" type="Npgsql.NpgsqlServices, Npgsql.EntityFramework" />
</providers>
</entityFramework>
<connectionStrings>
<add name="minitestEntities" connectionString="metadata=res://*/Model2.csdl|res://*/Model2.ssdl|res://*/Model2.msl;provider=Npgsql;provider connection string="PORT=5432;TIMEOUT=15;POOLING=True;MINPOOLSIZE=1;MAXPOOLSIZE=20;COMMANDTIMEOUT=20;COMPATIBLE=2.2.5.0;DATABASE=minitest;HOST=10.0.0.1;INTEGRATED SECURITY=True;PASSWORD=azerty;USER ID=theuser"" providerName="System.Data.EntityClient" />
</connectionStrings>
</configuration>
So i'm wondering if npgsql librairies are correctly loaded, or a if a reference is missing.
I found no docs on how to use npgsql on recent mono + ARM environment.
Any info about this would be really appreciated.
ok i found the solution in an other discution. In the meanwhile i forgot to note its URL so here the answer :
We have to add manually the provider description into app.config :
<system.data>
<DbProviderFactories>
<add name="Npgsql Data Provider"
invariant="Npgsql"
support="FF"
description=".Net Framework Data Provider for Postgresql Server"
type="Npgsql.NpgsqlFactory, Npgsql, Version=2.2.5.0, Culture=neutral, PublicKeyToken=5d8b90d52f46fda7" />
</DbProviderFactories>
</system.data>
The version and PuclicKeyToken MUST match with npgsql.dll.
To get the public key token, you can run that code :
typeof(Npgsql.NpgsqlFactory).AssemblyQualifiedName
Now i have no idea why this step is not necessary into windows, but a have to do into linux...
I have a vb.net class library project targeting .net 4.5.1 framework. I am using Visual Studio 2013 community edition.
The project is a library consuming a webapi 2 REST API.
As a guide I am using this example.
Project's packages.config is the following:
<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net451" />
<package id="Newtonsoft.Json" version="7.0.1" targetFramework="net451" />
</packages>
Project's assemblies references are:
Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL
System
System.Data
System.Net.Http
System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL
<HintPath>..\..\..\..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll</HintPath>
System.Xml
System.Core
System.Xml.Linq
System.Data.DataSetExtensions
app.config file is:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-7.0.0.0" newVersion="7.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.1" />
</startup>
</configuration>
The problem is that System.Net.Http.HttpClient extensions defined in Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll aren't loaded so functions like
System.Net.Http.HttpClientExtensions.PostAsJsonAsync(Of T)
and
System.Net.Http.HttpClientExtensions.PostAsXmlAsync(Of T)
aren't available.
In Object Browser System.Net.Http.HttpClientExtensions class defined in System.Net.Http.Formatting assembly under the System.Net.Http namespace are grayed out as you can see in the following screenshot:
I found several related questions like this one but the provided answers and suggestions in comments didn't work for me.
I tried several other recommendations from various internet sources, like for example replacing the reference of System.Net.Http.Formatting.dll found in Microsoft.AspNet.WebApi.Client package with the one found in the extensions assemblies area but didn't work either.
Now I am stuck and I don't know how to solve this. Any help will be highly appreciated.
EDIT
It appears that the grayed out classes in the object browser are just hidden classes (meaning they cannot be used directly in user's code) and have nothing to do with the problem described.
As I got a pitch for future project specifying XP compatibility I'm trying to test combination of VS 2010 (WinXP SP3), .Net 4.0.3 (later WPF for UI), Entity Framework 6 (as I found out it should be compatible with .Net 4) and SQLite (System.Data.SQLite / .EF6).
I installed "EntityFramework" and "System.Data.SQLite EF6" packages from NuGet.
("System.Data.SQLite EF6" in turn installed System.Data.SQLite, System.Data.SQLite.EF6 and SQLite.Interop.dll)
Now trying to use "Ado.Net Entity Data Model" template, which I guessed from older tutorials would be next step I get to new connection dialog and no SQLite provider is listed there to select.
I checked my App.config and SQLite data providers are listed there. (If correctly I can't tell)
Looking like this:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework"
type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
requirePermission="false" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0.3,Profile=Client" />
</startup>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="v11.0" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="System.Data.SQLite.EF6" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" />
</providers>
</entityFramework>
<system.data>
<DbProviderFactories>
<remove invariant="System.Data.SQLite" />
<remove invariant="System.Data.SQLite.EF6" />
<add name="SQLite Data Provider (Entity Framework 6)"
invariant="System.Data.SQLite.EF6"
description=".Net Framework Data Provider for SQLite (Entity Framework 6)"
type="System.Data.SQLite.EF6.SQLiteProviderFactory, System.Data.SQLite.EF6" />
<add name="SQLite Data Provider"
invariant="System.Data.SQLite"
description=".Net Framework Data Provider for SQLite"
type="System.Data.SQLite.SQLiteFactory, System.Data.SQLite" />
</DbProviderFactories>
</system.data>
</configuration>
The app (empty console app) compiles without errors and runs (doing of course nothing).
I am pretty green with EF + SQLite so can you please advice ?
Am I completely on a wrong track with something ?
So after another several hours of desperate googling I found a hint in an old tutorial about Visual Studio Design Time Component(s).
Apparently I was missing the Design Time Components and also System.Data.SQLite libs installed in GAC, without which VS2010 wizards don't 'see' the SQLite provider.
So despite reading in numerous official places that Setup install package is not a recommended method of getting SQLite libs into the project, it is actually the only way of making VS (2010, 12, ?13?) tools work with it.
Istalled one of "setup packages" from http://system.data.sqlite.org/index.html/doc/trunk/www/downloads.wiki . In my case "Setups for 32-bit Windows (.NET Framework 4.0)".
The Template now offers SQLite as data provider.