My problem is when i run the migration command dotnet ef migration add --project pname i get this error
Unable to Create a object of type "Dbcontext"
i follow all solution that i found on google but this error does not fix.I doesnt find any solution to
My Dbcontext
namespace ReactJsNew.Data
{
public class ReactJsContext : DbContext
{
public ReactJsContext(DbContextOptions<ReactJsContext> options)
: base(options)
{
}
public DbSet<Login> Logins { get; set; }
public DbSet<Register> Registers { get; set; }
}
}
This is my Program File
namespace ReactJsNew
{
public class Program
{
public static void Main(string[] args)
{
CreateHostBuilder(args).Build().Run();
}
public static IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup<Startup>();
});
}
}
This is my startup file
namespace ReactJsNew
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
services.AddSignalR();
services.AddCors(options =>
{
services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(options => {
//options.SaveToken = true;
options.TokenValidationParameters = new TokenValidationParameters
{
ValidateIssuer = true,
ValidateAudience = true,
ValidateLifetime = true,
ValidateIssuerSigningKey = true,
ValidIssuer = Configuration["Jwt:Issuer"],
ValidAudience = Configuration["Jwt:Audience"],
IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Jwt:Key"]))
};
});
services.AddMvc();
services.AddControllersWithViews();
services.AddDbContext<ReactJsContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("ReactJsNew")));
options.AddPolicy("ClientPermission", policy =>
{
policy.AllowAnyHeader()
.AllowAnyMethod()
.WithOrigins("http://localhost:3000")
.AllowCredentials();
});
});
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseHttpsRedirection();
app.UseCors("ClientPermission");
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
endpoints.MapHub<ChatHub>("/hubs/chat");
});
}
}
}