CODEWITHSUNDEEP
asp.net-mvc-2entity-framework-4sql-server-cecode-first
Andre Vianna
Andre Vianna

Reputation: 1742

Deploying SQLCE.EntityFramework 4.0.8435.1

I've applied SQLCE in a project I've been working. It works fine in Visual Studio and when I run locally (http://localhost:####) it runs perfectly. But when I publish it at my remote host I receive the "Yellow Screen of Death" the following error message:

Failed to find or load the registered .Net Framework Data Provider.

My Web.Config and references are OK (As I said it work fine at localhost) there is no need to chenge it. The sdf file is deployed in the correct path.

What is missing?

Upvotes: 2

Views: 1558

Answers (2)

Andre Vianna
Andre Vianna

Reputation: 1742

I found the answer. When SQLCE is installed to your project it add some files and folders under the bin directory of your webapp.

The following files and folders must be deployed along with you app in the bin folder.

Microsoft.Data.Entity.CTP.dll
System.Data.SqlServerCe.dll
System.Data.SqlServerCe.Entity.dll
WebActivator.dll
[x86] (folder)
[x86]\sqlcecompact40.dll
[x86]\sqlceer40EN.dll
[x86]\sqlceme40.dll
[x86]\sqlceqp40.dll
[x86]\sqlcese40.dll
[amd64] (folder)
[amd64]\sqlcecompact40.dll
[amd64]\sqlceer40EN.dll
[amd64]\sqlceme40.dll
[amd64]\sqlceqp40.dll
[amd64]\sqlcese40.dll

The files in the root of the bin folder (the first four I mentioned above) were deployed but for some reason the x86 and amd64 folders were not sent.

After I deployed those files the app worked fine in the remote host also.

Upvotes: 4

Morteza Manavi
Morteza Manavi

Reputation: 33216

The problem is because your remote host does not have the provider for SQLCE. If you look at your connection string it is something like this:

<connectionStrings>      
  <add name="name" 
       connectionString="Data Source=|DataDirectory|yourDbFileName.sdf" 
       providerName="System.Data.SqlServerCe.4.0"/>      
</connectionStrings>

Please note that SQL CE and its System.Data.SqlServerCe.4.0 provider has been released after .Net 4.0 so it was not included in standard .Net framework 4.0. So SqlServerCe.4.0 provider is Missing

Upvotes: 1

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