Deploying a wcf application

Hi. I have a WCF service published and this is my connectionstring  to the database.
<add name="DBEntities" connectionString="metadata=res://*/ServContexto.csdl|res://*/ServContexto.ssdl|res://*/ServContexto.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=10.1.1.71;initial catalog=DB;persist security info=True;user id=usr_xxx;password=YYYYYYYYY;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />

another connectionstring "Provider=SQLOLEDB;SERVER=10.1.1.71;DATABASE=producao;UID=homologacao;PWD=ZZZZZZZZZ;"

using the first connection with my wcf service, I got a error 500. and the second, a legacy application works fine.

basically the difference is the provider. how my publish could upload the sqlclient provider?

I have a test method that does not use the database and it works ok. only the methods that use the database fail.

thx in advance.
Deraldo SilvaAsked:
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käµfm³d 👽Commented:
Try turning on the display of custom errors so that you can see what the underlying issue is. Modify your web.config with the information found here:

http://msdn.microsoft.com/en-us/library/h0hfz6fc(v=vs.85).aspx

Spceficially, setting customErrors to off should allow you to see the exception detail. You'll need to turn on debug mode as well:

http://msdn.microsoft.com/en-us/library/e8z01xdh.aspx

Be sure to remove these added settings before you go to production!
Deraldo SilvaAuthor Commented:
Hi.
The problem occurred because the sql server native client was not installed.
It comes with sql server as in http://msdn.microsoft.com/pt-br/library/ms131321(v=sql.110).aspx
and from here https://www.connectionstrings.com/download-sql-server-native-client/

thx for your attention

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Deraldo SilvaAuthor Commented:
After install the missing component, the deploy works fine.
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Microsoft SQL Server 2008

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