title: Could not load file or assembly Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0
body: <p>After update to the new package Microsoft.EntityFrameworkCore.SqlServer 1.1.2  I got error when try to create DBContext:</p>
  
  <blockquote>
    <p>System.IO.FileLoadException occurred   HResult=0x80131040<br>
    Message=Could not load file or assembly
    'Microsoft.Extensions.DependencyInjection.Abstractions,
    Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60' or
    one of its dependencies. The located assembly's manifest definition
    does not match the assembly reference. (Exception from HRESULT:
    0x80131040)   Source=Microsoft.EntityFrameworkCore   StackTrace:    at
    Microsoft.EntityFrameworkCore.DbContext..ctor(DbContextOptions
    options)    at
    Services.Infrastructure.Data.SqlServerDbContext..ctor(DatabaseOptions
    databaseOptions) in
    C:\src\backend\Packages\Services.Infrastructure\Data\SqlServerDbContext.cs:line
    16    at
    Translations.Api.Data.TranslationsDbContext..ctor(DatabaseOptions
    databaseOptions) in
    C:\src\backend\Modules\Translations\Translations.Api\Data\TranslationsDbContext.cs:line
    16</p>
  </blockquote>
  
  <p>My base DbContext</p>
  
  <pre><code>public class SqlServerDbContext : DbContext
  {
      private readonly DatabaseOptions _databaseOptions;
  
      protected SqlServerDbContext(DatabaseOptions databaseOptions)
      {
          if (string.IsNullOrEmpty(databaseOptions.ConnectionString))
              throw new Exception("Database connection string is missed.");
  
          _databaseOptions = databaseOptions;
      }
  
      protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
      {
          optionsBuilder.UseSqlServer(_databaseOptions.ConnectionString);
      }
  }
  </code></pre>
  
  <p>Database options that I use</p>
  
  <pre><code>public class DatabaseOptions
  {
      public string ConnectionString { get; set; }
  }
  </code></pre>
  
  <p>Place where I create instance of context</p>
  
  <pre><code> var dbOptions = new DatabaseOptions { ConnectionString = _connectionString };
   DbContext = (TContext) Activator.CreateInstance(typeof(TContext), dbOptions);
  // where TContext is derived class from SqlServerDbContext
  </code></pre>
  
  <p>All my packages are updated.  Visual Studio 2017 15.2 (26430.6). Before upgrade to 1.1.2 everything works fine. Please help to solve the problem.   </p>