I'm taking a tutorial in ASP.NET Core and Entity framework and I can't insert data into my database. I've found that whenever I comment the line:
DbInitializer.Initialize(context);
The Aplication works.
This line is in the Startup.cs file
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using ContosoUniversity.Data;
using Microsoft.EntityFrameworkCore;
namespace ContosoUniversity
{
public class Startup
{
public Startup(IHostingEnvironment env)
{
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json", optional: false, 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.AddDbContext<SchoolContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
services.AddMvc();
}
// 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, SchoolContext context)
{
loggerFactory.AddConsole(Configuration.GetSection("Logging"));
loggerFactory.AddDebug();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseBrowserLink();
}
else
{
app.UseExceptionHandler("/Home/Error");
}
app.UseStaticFiles();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
DbInitializer.Initialize(context);
}
}
}
This is the error message I get when I launch the web app
An error occurred while starting the application.
ArgumentException: Keyword not supported: '"server'.
System.Data.Common.DbConnectionOptions.ParseInternal(Dictionary<string, string> parsetable, string connectionString, bool buildChain, Dictionary<string, string> synonyms)
ArgumentException: Keyword not supported: '"server'.
System.Data.Common.DbConnectionOptions.ParseInternal(Dictionary<string, string> parsetable, string connectionString, bool buildChain, Dictionary<string, string> synonyms)
System.Data.Common.DbConnectionOptions..ctor(string connectionString, Dictionary<string, string> synonyms)
System.Data.SqlClient.SqlConnectionString..ctor(string connectionString)
System.Data.SqlClient.SqlConnectionFactory.CreateConnectionOptions(string connectionString, DbConnectionOptions previous)
System.Data.ProviderBase.DbConnectionFactory.GetConnectionPoolGroup(DbConnectionPoolKey key, DbConnectionPoolGroupOptions poolOptions, ref DbConnectionOptions userConnectionOptions)
System.Data.SqlClient.SqlConnection.ConnectionString_Set(DbConnectionPoolKey key)
System.Data.SqlClient.SqlConnection.set_ConnectionString(string value)
Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerConnection.CreateDbConnection()
Microsoft.EntityFrameworkCore.Internal.LazyRef.get_Value()
Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open()
Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerDatabaseCreator+<>c__DisplayClass11_0.<Exists>b__0(DateTime giveUp)
Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerExecutionStrategy.Execute<TState, TResult>(Func<TState, TResult> operation, Func<TState, ExecutionResult<TResult>> verifySucceeded, TState state)
Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.Execute<TState, TResult>(IExecutionStrategy strategy, Func<TState, TResult> operation, TState state)
Microsoft.EntityFrameworkCore.Storage.RelationalDatabaseCreator.EnsureCreated()
ContosoUniversity.Data.DbInitializer.Initialize(SchoolContext context) in DbInitializer.cs
-
namespace ContosoUniversity.Data
{
public static class DbInitializer
{
public static void Initialize(SchoolContext context)
{
context.Database.EnsureCreated();
// Look for any students.
if (context.Students.Any())
{
return; // DB has been seeded
}
var students = new Student[]
ContosoUniversity.Startup.Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, SchoolContext context) in Startup.cs
-
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
DbInitializer.Initialize(context);
}
}
}
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
Microsoft.AspNetCore.Hosting.ConventionBasedStartup.Configure(IApplicationBuilder app)
Microsoft.AspNetCore.Hosting.Internal.WebHost.BuildApplication()
Show raw exception details
System.ArgumentException: Keyword not supported: '"server'.
at System.Data.Common.DbConnectionOptions.ParseInternal(Dictionary`2 parsetable, String connectionString, Boolean buildChain, Dictionary`2 synonyms)
at System.Data.Common.DbConnectionOptions..ctor(String connectionString, Dictionary`2 synonyms)
at System.Data.SqlClient.SqlConnectionString..ctor(String connectionString)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnectionOptions(String connectionString, DbConnectionOptions previous)
at System.Data.ProviderBase.DbConnectionFactory.GetConnectionPoolGroup(DbConnectionPoolKey key, DbConnectionPoolGroupOptions poolOptions, DbConnectionOptions& userConnectionOptions)
at System.Data.SqlClient.SqlConnection.ConnectionString_Set(DbConnectionPoolKey key)
at System.Data.SqlClient.SqlConnection.set_ConnectionString(String value)
at Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerConnection.CreateDbConnection()
at Microsoft.EntityFrameworkCore.Internal.LazyRef`1.get_Value()
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open()
at Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerDatabaseCreator.<>c__DisplayClass11_0.<Exists>b__0(DateTime giveUp)
at Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](Func`2 operation, Func`2 verifySucceeded, TState state)
at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.Execute[TState,TResult](IExecutionStrategy strategy, Func`2 operation, TState state)
at Microsoft.EntityFrameworkCore.Storage.RelationalDatabaseCreator.EnsureCreated()
at ContosoUniversity.Data.DbInitializer.Initialize(SchoolContext context) in C:\Users\iderlich\OneDrive\Documentos.Kerberos\Practica MVC\VS2017 PC Talca\ContosoUniversity\ContosoUniversity\Data\DbInitializer.cs:line 10
at ContosoUniversity.Startup.Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, SchoolContext context) in C:\Users\iderlich\OneDrive\Documentos.Kerberos\Practica MVC\VS2017 PC Talca\ContosoUniversity\ContosoUniversity\Startup.cs:line 62
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.AspNetCore.Hosting.ConventionBasedStartup.Configure(IApplicationBuilder app)
at Microsoft.AspNetCore.Hosting.Internal.WebHost.BuildApplication()
.NET Core X64 v4.1.1.0 | Microsoft.AspNetCore.Hosting version 1.1.2 | Microsoft Windows 6.1.7601 S | Need help?
