'DbContextOptionsBuilder' does not contain a definition for 'UseSqlServer' - mysql

Question

I am trying to create a Web API in VS 2015 Pro (Update 3) using C# and targeting .NET Core.
I am following this tutorial.
However, I am connecting to a MySQL database instead of an SQL Server database - not sure how much difference that makes...
Anyway, in the tutorial, I have to "Register my context with dependency injection" - so I have to add the following line to the ConfigureServices section of the Startup.cs file:
var connection = Configuration.GetConnectionString("DefaultConnection");
services.AddDbContext< Models.PropWorxContext > (options => options.UseSqlServer(connection));;
However, VS gives me the following error:
Error CS1061 'DbContextOptionsBuilder' does not contain a definition for 'UseSqlServer' and no extension method 'UseSqlServer' accepting a first argument of type 'DbContextOptionsBuilder' could be found (are you missing a using directive or an assembly reference?)
Any ideas why?
This is what the whole Startup.cs file looks like:
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
namespace PropWorxAPI
{
public class Startup
{
public Startup(IHostingEnvironment env)
{
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
.AddEnvironmentVariables();
Configuration = builder.Build();
}
public IConfigurationRoot Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
// Add framework services.
services.AddMvc();
var connection = Configuration.GetConnectionString("DefaultConnection");
services.AddDbContext< Models.PropWorxContext > (options => options.UseSqlServer(connection));
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
loggerFactory.AddConsole(Configuration.GetSection("Logging"));
loggerFactory.AddDebug();
app.UseMvc();
}
}
}
I have also added the MySQL package using the Package Manager, so that my project.json file contains this entry:
*"MySql.Data.EntityFrameworkCore": "7.0.6-IR31"*
Any hints as to where I've gone wrong would be greatly appreciated, as I've spent all day trying to figure it out :( Thank you...

Answer 1

SqlServer is Microsoft Sql Server not MySql, to use SqlServer you would need the package "Microsoft.EntityFrameworkCore.SqlServer": "1.0.*".
If using MySql there is options.UseMySql
see this tutorial for more

Answer 2

I got this error as well whilst setting up a project using Sql Server for a database. In my case I had to add a using statement manually -
"using Microsoft.EntityFrameworkCore;" . It sounds a bit obvious but it threw me as Visual Studio wasn't adding the using statement via Quick Actions.

Answer 3

If you have already installed the "Microsoft.EntityFrameworkCore.SqlServer" package and using Ctrl + Space cannot give you any option, adding the "using Microsoft.EntityFrameworkCore" manually solved my issue.

Answer 4

missing package.This worked for me.
tools-NUget package-package manager-copy paste following install:
Install-Package Microsoft.EntityFrameworkCore.SqlServer -Version 3.1.1

Answer 5

While in your project folder type this into your command line:
dotnet add package Pomelo.EntityFrameworkCore.MySql -v 2.1.2

Answer 6

Install Sqllite/Sqlserver compact toolbox then create database if not created then change connectionstring in appsettings.json