类型或名称空间名称'OpenIddictDbContext< ,,>'找不到 [英] The type or namespace name 'OpenIddictDbContext<,,>' could not be found
问题描述
我有问题.今天早上我打开了项目，并收到错误消息:
找不到类型或名称空间名称'OpenIddictDbContext< ,,>'(您是否缺少using指令或程序集引用?)[netcoreapp1.1]
当我还原并构建项目时发生此错误.奇怪是因为我在project.json文件中确实有"OpenIddict":"1.0.0-*" ，并且我正在使用引用: using OpenIddict ;
此问题在我的项目中到处都会引起问题，因为他似乎无法识别使用OpenIddict"
如果有帮助，这是我遇到错误(ApplicationDbContext.cs)的示例
namespace Overnight.Db
{
//the error: The type or namespace name 'OpenIddictDbContext<,,>' could not be found (are you missing a using directive or an assembly reference?)
public class ApplicationDbContext : OpenIddictDbContext<ApplicationUser, ApplicationRole, Guid>
{
或
//the error: 'OpenIddictDbContext<ApplicationUser, ApplicationRole, Guid>' does not contain a constructor that takes 1 arguments
protected override void OnModelCreating(ModelBuilder builder)
{
这是我的project.json:
{
"version": "1.0.0-*",
"buildOptions": {
"emitEntryPoint": true
},
"dependencies": {
"Microsoft.NETCore.App": {
"type": "platform",
"version": "1.1.0"
},
"Microsoft.EntityFrameworkCore.Design": "1.0.0-preview2-final",
"AspNet.Security.Oauth.Validation": "1.0.0-alpha2-final",
"Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.0.0",
"OpenIddict": "1.0.0-*",
"Npgsql.EntityFrameworkCore.PostgreSQL": "1.0.1-*",
"Npgsql.EntityFrameworkCore.PostgreSQL.Design": "1.0.1-*",
"Bogus": "7.1.6",
"Overnight.Models": {
"target": "project",
"version": "1.0.0-*"
}
},
"frameworks": {
"netcoreapp1.1": {}
},
"tools": {
"Microsoft.EntityFrameworkCore.Tools": {
"version": "1.0.0-preview2-final"
}
}
}
这很奇怪，因为我在可视代码中打开的每个项目都存在此错误，因此我认为这与我的项目无关.
从beta2开始，OpenIddict不再带有专用的DbContext可以子类化，因为这种模式-继承自ASP.NET Core Identity-被证明是相当不切实际.
现在，建议您直接从IdentityDbContext继承，并通过从ConfigureServices调用options.UseOpenIddict()来注册OpenIddict所需的实体集:
project.json:
"dependencies": {
"OpenIddict": "1.0.0-*",
"OpenIddict.EntityFrameworkCore": "1.0.0-*",
"OpenIddict.Mvc": "1.0.0-*"
}
启动:
services.AddDbContext<ApplicationDbContext>(options =>
{
// Configure the context to use Microsoft SQL Server.
options.UseSqlServer(configuration["Data:DefaultConnection:ConnectionString"]);
// Register the entity sets needed by OpenIddict.
// Note: use the generic overload if you need
// to replace the default OpenIddict entities.
options.UseOpenIddict();
});
// Register the OpenIddict services.
services.AddOpenIddict(options =>
{
// Register the Entity Framework stores.
options.AddEntityFrameworkCoreStores<ApplicationDbContext>();
});
ApplicationDbContext:
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext(DbContextOptions options)
: base(options) { }
protected override void OnModelCreating(ModelBuilder builder)
{
base.OnModelCreating(builder);
// Customize the ASP.NET Identity model and override the defaults if needed.
// For example, you can rename the ASP.NET Identity table names and more.
// Add your customizations after calling base.OnModelCreating(builder);
}
}
I have a problem. I opened my project this morning and got the error:
The type or namespace name 'OpenIddictDbContext<,,>' could not be found (are you missing a using directive or an assembly reference?) [netcoreapp1.1]
This error occurred when I restored and built my project. It's strange because I do have "OpenIddict": "1.0.0-*", in my project.json file and I am using the reference: using OpenIddict;
This issue causes problems everywhere in my project because he doesn't seem to recognise "using OpenIddict"
If it helps, this is an example where I got the error (ApplicationDbContext.cs)
namespace Overnight.Db
{
//the error: The type or namespace name 'OpenIddictDbContext<,,>' could not be found (are you missing a using directive or an assembly reference?)
public class ApplicationDbContext : OpenIddictDbContext<ApplicationUser, ApplicationRole, Guid>
{
or
//the error: 'OpenIddictDbContext<ApplicationUser, ApplicationRole, Guid>' does not contain a constructor that takes 1 arguments
protected override void OnModelCreating(ModelBuilder builder)
{
Here's my project.json:
{
"version": "1.0.0-*",
"buildOptions": {
"emitEntryPoint": true
},
"dependencies": {
"Microsoft.NETCore.App": {
"type": "platform",
"version": "1.1.0"
},
"Microsoft.EntityFrameworkCore.Design": "1.0.0-preview2-final",
"AspNet.Security.Oauth.Validation": "1.0.0-alpha2-final",
"Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.0.0",
"OpenIddict": "1.0.0-*",
"Npgsql.EntityFrameworkCore.PostgreSQL": "1.0.1-*",
"Npgsql.EntityFrameworkCore.PostgreSQL.Design": "1.0.1-*",
"Bogus": "7.1.6",
"Overnight.Models": {
"target": "project",
"version": "1.0.0-*"
}
},
"frameworks": {
"netcoreapp1.1": {}
},
"tools": {
"Microsoft.EntityFrameworkCore.Tools": {
"version": "1.0.0-preview2-final"
}
}
}
It's strange because every project I open in my visual code has this error so I don't think it has to do with my project.
Starting with beta2, OpenIddict no longer comes with a dedicated DbContext you can subclass, as this pattern - inherited from ASP.NET Core Identity - proved to be rather impractical.
Instead, you're now encouraged to directly inherit from IdentityDbContext and register the entity sets needed by OpenIddict by calling options.UseOpenIddict() from ConfigureServices:
project.json:
"dependencies": {
"OpenIddict": "1.0.0-*",
"OpenIddict.EntityFrameworkCore": "1.0.0-*",
"OpenIddict.Mvc": "1.0.0-*"
}
Startup:
services.AddDbContext<ApplicationDbContext>(options =>
{
// Configure the context to use Microsoft SQL Server.
options.UseSqlServer(configuration["Data:DefaultConnection:ConnectionString"]);
// Register the entity sets needed by OpenIddict.
// Note: use the generic overload if you need
// to replace the default OpenIddict entities.
options.UseOpenIddict();
});
// Register the OpenIddict services.
services.AddOpenIddict(options =>
{
// Register the Entity Framework stores.
options.AddEntityFrameworkCoreStores<ApplicationDbContext>();
});
ApplicationDbContext:
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext(DbContextOptions options)
: base(options) { }
protected override void OnModelCreating(ModelBuilder builder)
{
base.OnModelCreating(builder);
// Customize the ASP.NET Identity model and override the defaults if needed.
// For example, you can rename the ASP.NET Identity table names and more.
// Add your customizations after calling base.OnModelCreating(builder);
}
}
这篇关于类型或名称空间名称'OpenIddictDbContext< ,,>'找不到的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
