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Telerik OpenAccess ORM : No enhanced assembly has been found for meta-data construction

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Amit Hiremath asked on 30 Apr 2009, 09:36 AM

i have downloaded , mvc-forum applicatoin , and managed to compile and run it with proper Telerik.OpenAccess and Telerik.OpenAccess.Query Assemblies versions [Version=2009.1.311.1].

whenever i run the application, i get following error,

Telerik.OpenAccess: No enhanced assembly has been found for meta-data construction. This may be caused by a missing app.config file (use app.config as embedded resource then) or by an insufficient references section in the configuration file (add the referenced enhanced assemblies there too) or by a wrong enhancement setting; please check your configuration.

The error is coming at red line.

ModelObjectScopeProvider class

static public IObjectScope GetNewObjectScope()

{

Database db = Database();

IObjectScope newScope = db.GetObjectScope();

return newScope;

}

One strange thing I have noticed is that, even if we debugged with F11 it does not go inside for red line.

please note that , i have installed

1] RadControls for ASPNET AJAX Q1 2009 [ Version=2009.1.311.1]
2] Telerik OpenAccess ORM [Version=2009.1.311.1]

41 Answers, 1 is accepted

answered on 03 Jun 2009, 09:29 AM

Hello Frank,

First you have to remove the OpenAccess references from the three projects and add them again. This makes sure that you will be working with the latest installed assemblies. You have already done the next step - changing the version in the web.config file. After that it is very important to "Clean" the project before rebuilding. The Enhancing option is available in the project's properties. Just select the project from the solution explorer and press F4, the option must be enabled.

All the best,
Alexander
the Telerik team

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answered on 04 Jun 2009, 08:36 PM

Alexander:

I have exactly the same problem.

I followed your advice, right up to the point of setting the Enhancing option. But I don't see any such option in the project properties for Telerik,Mvc.Model. However, when I look at the Telerik.Mvc.Model.csproj file with Notepad, I can see the settings:

<ProjectExtensions>
    <VisualStudio>
      <UserProperties OpenAccess_EnhancementOutputLevel="1" OpenAccess_UpdateDatabase="False"
                   OpenAccess_Enhancing="True" OpenAccess_ConnectionId="" OpenAccess_ConfigFile="App.config" />
    </VisualStudio>
</ProjectExtensions>

... which seems to indicate that Enhancing is set correctly. Additionally, I checked for an app.config file and found one right in the Telerik.Mvc.Model folder itself.

Unfortunately, this means that I don't know what to do next ... what do you suggest?

Josh

Thanks
Josh

answered on 05 Jun 2009, 10:02 AM

Hello Josh,

This is really weird, I tried downloading and running the demo on several machines and did not get any problems, the only thing I had to do was to change the references. Obviously our Enhancer tool fails to enhance the project. Do you experience such problems with other OpenAccess enabled projects? If only this application is problematic, could you tell me the exact version of OpenAccess ORM that you are using? I will provide you with an enhanced version of the demo.

Best wishes,
Alexander
the Telerik team

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answered on 29 Jun 2009, 01:04 PM

Hi Keith LeBeau,

I do not really think this is the problem. The Visual Studio Extensions package is related to the RadControls for ASP.NET AJAX toolkit and it is not required for using OpenAccess ORM. It seems more like a problem with the installation of the OpenAccess addin for Visual Studio. Without this addin, OpenAccess cannot enhance projects and the specific OpenAccess menus and properties are not available. You can check if the addin is running from the Tools -> Add-in Manager menu of Visual Studio. If it is not there, reinstalling OpenAccess ORM may help.

Regards,
Alexander
the Telerik team

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answered on 07 Jul 2009, 04:46 PM

Hello,

Let me summarize what to do if you get this exception. It pops up when the OpenAccess enhancer has not been called or did not succeed to enhance the compiled assembly. So, there are three possible ways to run the VEnhance program:

Automatically (default), using our Visual Studio integration (the OpenAccess ORM add-in for VS). The Enhancing option of the project should be set to True.

Using MsBuild integration (please read this help topic)

Manually, after the assembly is built (more details in this topic)

The VEnhance.exe tool is installed with Telerik OpenAccess ORM under the sdk/ directory. Please, if the first approach does not work for you (probably there is a problem with the add-in), use any of the other two methods to enhance the project.

Kind regards,
Alexander
the Telerik team

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answered on 14 Aug 2009, 03:00 PM

Hi all,

i have downloaded sales dashboard application, and i have installed Telerik OpenAccess ORM,

here i am getting an error like

"Telerik.OpenAccess: No enhanced assembly has been found for meta-data construction. This may be caused by a missing app.config file (use app.config as embedded resource then) or by an insufficient references section in the configuration file (add the referenced enhanced assemblies there too) or by a wrong enhancement setting; please check your configuration."

Even after applying all the solutions i did not get the result.

if there is any other possible ways to solve this problem..., kindly inform me...

Thanks & Regards,
Krishna.

answered on 21 Sep 2009, 05:13 PM

The good: google pointed me to this page.
The bad: it does not state how to solve it.

I downloaded the SL SalesDashboard demo. I can't open the SL solution as VS immediately crashes. The WPF solutions opens fine, but the OpenAccess references are missing. Easily fixed because they are contained in the zip.

I first change the startup project to be the Shell.Desktop project. Then when I try to run I get the "No enhanced assembly has been found for meta-data construction" error.

Now I would think that if this error has occurred before and people have stated that the enhancements option is not found when looking at the properties there would be some pointer about what to do / where to look.

I have done a rebuild all, but no success. Please provide some advice on how to get the demo running.

answered on 23 Sep 2009, 12:17 PM

Hello Tom de Koning,

Can you see the Telerik -> OpenAccess menu in Visual Studio? If so, this means the VS Addin is working and the Enhancer will be called. Please make sure that:
- The Telerik.SalesDashboard.Data project has the Enhancing property set to True.
- There are no outdated assemblies in the bin directories of the projects. Just delete all .dll and .pdb files starting with Telerik.OpenAccess* and Telerik.SalesDashboard* from all bin directories. Then rebuild the solution.

If you do not have such menu, the OpenAccess Visual Studio Addin is not running. This might happen if you are using Visual Studio Express, which does not allow usage of addins.

All the best,
Alexander
the Telerik team

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answered on 02 Jun 2010, 09:11 AM

Hi Varun Jain,

You did not mention which version of OpenAccess you are using but in order to run the SL4/VS2010 demo without changing anything you need to install version 2010.1.414.3 (the latest internal build we published before the Q1 Service pack 1). Just referencing the OpenAccess assemblies would not be enough to run the demo because the enhancer would not be available on the machine and you would get the "No enhanced assembly..." exception.
So please make sure you have this OpenAccess version installed, Clean and Rebuild the solution. Then if the problem remains, let us know so we can continue investigating the problem.

Kind regards,
Alexander
the Telerik team

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answered on 02 Jun 2010, 02:38 PM

Hi Varun Jain,

I just tested the Sales dashboard on one of our machines and below are the steps I did to get it running. I assume that Visual Studio 2010 and OpenAccess are already installed:
- Install Silverlight 4 Tools for Visual Studio;
- Unzip the demo archive and open the Silverlight solution;
- Make sure that the Enhancing property of the Telerik.SalesDashboard.Data project is set to True; To check this select the project in the Solution Explorer and press F4, then you should see the property. If you cannot see it there, probably the OpenAccess Addin is not loaded, this would explain the cause for the error. If it is there, continue with the next steps;
- Rebuild the projects in the following order:
1. Telerik.SalesDashboard.Data;
2. Telerik.SalesDashboard.Common;
3. All projects under the Silverlight/Modules folder;
4. Telerik.SalesDashboard.Shell;
- Set the Telerik.SalesDashboard.Web as startup project and the Telerik.SalesDashboard.ShellTestPage.aspx as startup page, then run the project;

Please follow these steps and see if any of them fails on your side;

Regards,
Alexander
the Telerik team

answered on 03 Jun 2010, 11:14 AM

Hi Alexander,

Sorry to say, But i'm using Open Access version 2010.1.312.2. There is no such version like 2010.1.414.3. On Building the Data Project. It gives an error.

"Error 1 OpenAccess Error: Version mismatch: The assembly Telerik.SalesDashboard.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null references the Telerik.OpenAccess runtime 2010.1.414.3. The Telerik.OpenAccess enhancer version is 2010.1.312.2. Please rebuild the assembly or use theTelerik.OpenAccess enhancer version 2010.1.414.3 D:\Varun Collection\Telerik.SalesDashboard_SL_2010_1_422_Dev\Telerik.SalesDashboard\Telerik.SalesDashboard.Data\obj\Debug\Telerik.SalesDashboard.Data.dll -1"

Could you tell me what the problem could be. Do I have to install SQL Server? If yes, which version should I install.

During the installation of ORM, it usually ask for the sql server instance giving options 1. (LOCAL) 2. (LOCAL)\SQLEXPRESS. Which instance should I choose, having not installed SQL server, except for the one which is being installed along with Visual studio 2010.

Thanks and Regards,
Varun Jain

answered on 04 Jun 2010, 11:57 AM

Hi Varun Jain,

In order to run the demo with version of OpenAccess different from 2010.1.414.3 (this is our latest internal build before the Q1 Service pack 1) you have to update the project references. First please delete the Binaries/OpenAccess.2010.1.414.3 folder that contains the old references. Then run the Check Settings wizard from the Telerik -> OpenAccess -> Configuration -> Check Settings menu. Click Check, then Fix and the references will be automatically updated to the installed version. When you are done rebuild the projects in the order I mentioned in my previous post.
The demo is configured to run on a local SqlServer with address (LOCAL)\SQLEXPRESS2008. The server installed with VS2010 should do the job, just please check if its name is different from SQLEXPRESS2008 and update this setting in the Web.config file of the Telerik.SalesDashboard.Web project if necessary.
Hope that helps.

Kind regards,
Alexander
the Telerik team

answered on 07 Jun 2010, 12:55 PM

Hello Varun Jain,

The project surely can be deployed. I do not know if your setup is similar to mine (Windows 7 64bit) but here are the steps I performed to get it working:
Make sure the project is working in Visual Studio. Copy the Telerik.SalesDashboard.Web folder to the C:\inetpub\wwwroot\ directory. It is important for the WCF service to live somewhere inside this directory. Copy the following OpenAccess assemblies to the bin folder:
- Telerik.OpenAccess.dll;
- Telerik.OpenAccess.Config.dll;
- Telerik.OpenAccess.Runtime.dll;
- Telerik.OpenAccess.Adonet2.dll;
- Telerik.OpenAccess.35.Extensions.dll;

Now you have to configure the web site. Open the IIS Manager and add a new Application pool with name SalesDashboard, set the target framework to 4.0 and the Managed pipeline mode to Classic. Then add a new web site with a proper name and select the SalesDashboard application pool to be used. Set the path to the demo's folder and choose port 8000. Now you should make sure that the folder permissions allow reading and executing the files underneath. Please also update the service configuration so it contains the proper deployment address:

<services>

<service behaviorConfiguration="Telerik.SalesDashboard.Web.SalesDashboardServiceBehavior" name="Telerik.SalesDashboard.Web.SalesDashboardService">

<endpoint address="" binding="basicHttpBinding" contract="Telerik.SalesDashboard.Web.SalesDashboardService" />

<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />

<host>

<baseAddresses>

<add baseAddress="http://localhost:8000/" />

</baseAddresses>

</host>

</service>

</services>

I do not know if this problem would occur on your machine but it turned out that I need to add a handler mapping for .svc files. While the web site is selected in the treeview on the left, open the Handler Mappings settings dialog and look for mapping names starting with svc-ISAPI. I had only two of them that point to the 2.0 asp assemblies and needed to add another for the 4.0 framework. If you do not have such mapping either, click on Add script map and enter the settings below, then save the mapping:
Request path: *.svc
Executable: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll
Name: svc-ISAPI-4.0-32bit

This should be enough to run the web site, the last step is to configure the database settings. As I had some problems with the dynamic attachment of the NorthwindOA database I suggest you to manually attach it to your sql server via Management Studio (if it is not already there) and remove the <connectionParams>AttachDbFilename=|DataDirectory|\NORTHWND.MDF</connectionParams> node from web.config file. Then select the SalesDashboard application pool in the IIS Manager, open the Advanced settings dialog and change the Identity option to Local System. This way you will be able to log on to the database server with your windows credentials.

When the web site is up and running you can remove the unnecessary files (like project files and source code) from its folder.

Greetings,
Alexander
the Telerik team

answered on 06 Jul 2010, 02:44 PM

Hi Daming,

If you can see the OpenAccess submenu at the bottom of the project context menu in the Solution explorer, that means the addin is loaded properly and you should be able to see the Enhancing project property by pressing F4.
If you cannot see the menu there, you can try to enable it from the Tools -> Add-in manager dialog. If the addin is not listed there, please try to uninstall and install the product again. Hope that helps.

Greetings,
Alexander
the Telerik team