My WPF application works fine on Windows 7, but throws the above error when running on Windows XP. I am using ENtity Framework 6.1.1
App.xaml is
<Application.Resources>
<main:MainConverter x:Key="MainVerter"/>
<Style x:Key="DetailHead1Style" TargetType="TextBlock">
<Setter Property="FontSize" Value="20"/>
<Setter Property="FontWeight" Value="Bold"/>
<Setter Property="Foreground" Value="DarkSlateGray"/>
<Setter Property="Opacity" Value="0.8"/>
<Setter Property="FontStyle" Value="Italic"/>
<Setter Property="Margin" Value="6,2,6,2"/>
</Style>
<Style x:Key="DetailsOuterGridStyle" TargetType="Grid">
<Setter Property="Background" Value="White"/>
</Style>
</Application.Resources>
The inner exception is
System.Configuration.ConfigurationErrorsException: An error occurred creating the configuration section handler for entityFramework: Request failed.
(Q:\devnet10\SBD.CartBrowser\SBD.CartBrowser\bin\Debug\SBD.FlightControl.exe.Config line 23) ---> System.Security.SecurityException: Request failed.
at System.RuntimeMethodHandle.PerformSecurityCheck(Object obj, RuntimeMethodHandleInternal method, RuntimeType parent, UInt32 invocationFlags)
at System.RuntimeMethodHandle.PerformSecurityCheck(Object obj, IRuntimeMethodInfo method, RuntimeType parent, UInt32 invocationFlags)
at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.ConstructorInfo.Invoke(Object[] parameters)
at System.Configuration.TypeUtil.InvokeCtorWithReflectionPermission(ConstructorInfo ctor)
at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.CreateSectionImpl(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader)
at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.CreateSectionWithRestrictedPermissions(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader)
at System.Configuration.RuntimeConfigurationRecord.CreateSection(Boolean inputIsTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader)
at System.Configuration.BaseConfigurationRecord.CallCreateSection(Boolean inputIsTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader, String filename, Int32 line)
The app.config contains the correct connection string. Could it be interpreted differently on XP?
[Update] The code fails when initialising the connection.
var connect = new CartConnect(constr);
[Update]
app.config is
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
</configSections>
<connectionStrings>
<add name="CartConnect_HAPPY4" connectionString="metadata=res://*/Edm.CartModel.csdl|res://*/Edm.CartModel.ssdl|res://*/Edm.CartModel.msl;provider=System.Data.SqlClient;provider connection string="Database=mydatabase;Server=Server15\SQLExpress;Integrated Security=False;User=mylogin;Password=mypassword;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient"/>
</connectionStrings>
<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"/>
</providers>
</entityFramework>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>
</configuration>
I set up my connection string using
private CartConnect MakeConnect()
{
string key = string.Format("CartConnect_{0}", Environment.MachineName.ToUpperInvariant());
string constr = ConfigurationManager.ConnectionStrings[key].ConnectionString;
var connect = new CartConnect(constr); // fails here
connect.Configuration.LazyLoadingEnabled = false;
connect.Configuration.ProxyCreationEnabled = false;
return connect;
}
I looked at other questions on "An error occurred creating the configuration section handler for entityFramework"
I tried removing and re-adding Entity Framework using NuGet
[Update]
Thank you ErikEJ. Copying the files locally works. I wonder if there is a way to get it working on the network?
Reminds me of my problem in this question about regasm
Is the Q: drive local? If not, try to run the app from a local drive - the error message indicates that there is a security issue preventing you to run from a network folder.