Entity Framework Pre-Generated Views, Issue when built using build server

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Hi there,

I have an entity model built using EF4.1 Code First. To improve performance I have pre-compiled the views that EF normally generates at runtime. This works fine when I run locally or publish to our test server from visual studio. However, when I build the project using a TFS team build on a build server, I get the following exception when try and query the entity model:

The mapping and metadata information for EntityContainer 'X' no longer matches the information used to create the pre-generated views.

I was wondering if anyone else has had similar issues, and whether there is a way around this. As far as I know pre-compiled views are not machine specific, so the issue may very well lie with either TFS or msbuild.

Thanks in advance for any help

Ryan

Posted 7-Jun-11 0:36am

Ryan Gamal

Updated 4-Dec-16 15:14pm

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Ryan Gamal 18-Jul-11 11:44am

This is currently under investigation by the product team @ Microsoft...

http://social.msdn.microsoft.com/Forums/en-US/adodotnetentityframework/thread/f28eb9da-8e76-46c0-993f-10be01081fed

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dasblinkenlight · Answer 1 · 2011-06-07T05:18:00

I would think that it's almost certainly a build issue. Doing pre-compiled views requires generating source files, which has traditionally been a weak spot of build environments.

Three things need to happen in exactly right order for it to work: (1) metadata artifacts need to be copied to the output directory, (2) edmgen has to pick them up and build X.Views.cs (or X.Views.vb), and (3) CS compiler has to build X.Views.cs generated during step 2. I would examine the build logs to see if things happen in the right order.

One issue that comes up repeatedly is inclusion of generated artifacts in the source control. Sometimes, plug-ins do it for you when you add generated sources to your project. If your X.Views.cs (or X.Views.vb) has been added to source control, you need to remove it.

Another thing you need to check is that the source directory to which X.Views.cs is written allows writing. It's near certainty that it's writable on your development workstation, but TFS may be a completely different story.

Good luck!

Member 4393501 · Answer 2 · 2011-07-18T05:39:00

Solution 2

I have the same problem. Sometimes it works and sometimes it doesn't. Wasting hours of time trying to fix it.

Posted 18-Jul-11 5:39am

Member 4393501

BharatSukhwal · Answer 3 · 2012-05-08T22:54:00

Run the script for generation of updated view

%windir%\Microsoft.NET\Framework\v4.0.30319\EdmGen.exe /nologo /language:CSharp /mode:ViewGeneration "/inssdl:[Your Path for the files in visual studio]\obj\Debug\edmxResourcesToEmbed\yourproject.ssdl" "/incsdl:[Your Path for the files in visual studio]\obj\Debug\edmxResourcesToEmbed\yourproject.csdl" "/inmsl:[Your Path for the files in visual studio]\obj\Debug\edmxResourcesToEmbed\yourproject.msl" /outviews:[Your Path for the files in visual studio]\yourproject.Views.cs

Member 12886592 · Answer 4 · 2016-12-04T15:14:00

Solution 4

Right, Click to the project folder where you have DBContext class. Then select the Entity framework and click on Generate View. Each time you create new model you need to repeat the process

Posted 4-Dec-16 15:14pm

Member 12886592

Entity Framework Pre-Generated Views, Issue when built using build server

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