Entity Framework Core 2.2.1 DbQuery error system.Data.SqlTypes.SqlNullValueException

Unable to cast Anonymous Type from 'System.Linq.IQueryable' to 'System.Data.Entity.Core.Objects.ObjectQuery'

As dna2 mentioned at the conclusion of his query, this problem was fixed in...EF 6.0.2... . Do the following in the Package Manager Console (VS2013) to update your EF version:...VIEW -> Other Windows -> Package Manager Console... )....Update-Package EntityFramework -Version 6.0.2

Method not found: 'Void System.Data.Entity.DbModelBuilder.RegisterEntityType(System.Type)'

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Entity Framework 6 error serverversion : (System.Data.SqlClient.SqlConnection)customerOrderContext.Database.Connection).ServerVersion

Zzz-5-Zzz is the exception, and it occurs when the connection is broken. This is not a problem....However, because you are merely returning the result and haven't used it, you clearly receive an empty result....new List<BusinessObjects.Customers>()... In your approach:...public IEnumerable<BusinessObjects.Customers> GetAllCustomers() { IList<Bu...

Xamarin with Entity Framework Core: Error: unauthorized access to "/system/lib/libsqlite.so" on Android 7

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System.Core error: "Code supposed to be unreachable" using C# Entity Framework and Linq with Expression

The method call may be stored in a variable outside the query expression tree and used within as a workaround by:...var accountFilter = this.AccountSecurity(p_UserKey); var qry = from cs in this.DbContext.CompanySet .Where(c => c.Accounts.AsQueryable().Any(accountFilter)) select cs; return qry.ToList();

Entity Framework Core 2.0 migrations update database with seed data throwing error

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One-to-many relationship getting error in Entity Framework Core when trying to insert data

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Why do Entity Framework Core POCOs returned from a DbQuery have to be public?

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Entity Framework Core: `SqlNullValueException: Data is Null.` How to troubleshoot?

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Using DbQuery in linq join -> Entity Framework Core

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