Method not found UseSqlServer
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I'm trying to create DbContextOptionBuilder and run into an error at runtime that says the next: Method not found: 'Microsoft.EntityFrameworkCore.DbContextOptionsBuilder 1<!!0> Microsoft.EntityFrameworkCore.SqlServerDbContextOptionsExtensions.UseSqlServer(Microsoft.EntityFrameworkCore.DbContextOptionsBuilder 1, System.String, System.Action`1)'. Code that trying to create it: var optionsBuilder = new DbContextOptionsBuilder<DbContext>(); var newDbConnectionString = "myconnectionString"; optionsBuilder.UseSqlServer(newDbConnectionString); I have installed all required packages, such ...