C# .Netcore Api邮递员500内部服务器错误

通过postman从我的API向我的数据库发送post请求时，我得到以下响应： { “消息”：“无效的对象名称‘帐户’。” }

这些是我的C#代码，我不知道我做错了什么，也不知道我遗漏了什么。请帮忙

会计控制员

使用自动制版机； 使用Microsoft.AspNetCore.Http； 使用Microsoft.AspNetCore.Mvc； 使用制度； 使用System.Collections.Generic； 使用生物测试。实体； 使用测试、模型、账户； 使用生物测试服务

 namespace Africanbiomedtests.Controllers
 {
     [ApiController]
     [Route("[controller]")]
     public class AccountsController : BaseController
     {
          private readonly IAccountService _accountService;
          private readonly IMapper _mapper;

          public AccountsController(
              IAccountService accountService,
              IMapper mapper)
          {
              _accountService = accountService;
              _mapper = mapper;
         }

         [HttpPost("authenticate")]
         public ActionResult<AuthenticateResponse> Authenticate(AuthenticateRequest model)
         {
             var response = _accountService.Authenticate(model, ipAddress());
             setTokenCookie(response.RefreshToken);
             return Ok(response);
         }

         [HttpPost("refresh-token")]
         public ActionResult<AuthenticateResponse> RefreshToken()
         {
             var refreshToken = Request.Cookies["refreshToken"];
             var response = _accountService.RefreshToken(refreshToken, ipAddress());
             setTokenCookie(response.RefreshToken);
             return Ok(response);
         }

         [Authorize]
         [HttpPost("revoke-token")]
         public IActionResult RevokeToken(RevokeTokenRequest model)
         {
             // accept token from request body or cookie
             var token = model.Token ?? Request.Cookies["refreshToken"];

             if (string.IsNullOrEmpty(token))
                 return BadRequest(new { message = "Token is required" });

             // users can revoke their own tokens and admins can revoke any tokens
             if (!Account.OwnsToken(token) && Account.Role != Role.Admin)
                 return Unauthorized(new { message = "Unauthorized" });

             _accountService.RevokeToken(token, ipAddress());
             return Ok(new { message = "Token revoked" });
         }

         [HttpPost("register")]
         public IActionResult Register(RegisterRequest model)
         {
             _accountService.Register(model, Request.Headers["origin"]);
             return Ok(new { message = "Registration successful, please check your email for verification instructions" });
         }

         [HttpPost("verify-email")]
         public IActionResult VerifyEmail(VerifyEmailRequest model)
         {
             _accountService.VerifyEmail(model.Token);
             return Ok(new { message = "Verification successful, you can now login" });
         }

         [HttpPost("forgot-password")]
         public IActionResult ForgotPassword(ForgotPasswordRequest model)
         {
             _accountService.ForgotPassword(model, Request.Headers["origin"]);
             return Ok(new { message = "Please check your email for password reset instructions" });
         }

         [HttpPost("validate-reset-token")]
         public IActionResult ValidateResetToken(ValidateResetTokenRequest model)
         {
             _accountService.ValidateResetToken(model);
             return Ok(new { message = "Token is valid" });
         }

         [HttpPost("reset-password")]
         public IActionResult ResetPassword(ResetPasswordRequest model)
         {
             _accountService.ResetPassword(model);
             return Ok(new { message = "Password reset successful, you can now login" });
         }

         [Authorize(Role.Admin)]
         [HttpGet]
         public ActionResult<IEnumerable<AccountResponse>> GetAll()
         {
             var accounts = _accountService.GetAll();
             return Ok(accounts);
         }

         [Authorize]
         [HttpGet("{id:int}")]
         public ActionResult<AccountResponse> GetById(int id)
         {
             // users can get their own account and admins can get any account
             if (id != Account.Id && Account.Role != Role.Admin)
                 return Unauthorized(new { message = "Unauthorized" });

             var account = _accountService.GetById(id);
             return Ok(account);
         }

         [Authorize(Role.Admin)]
         [HttpPost]
         public ActionResult<AccountResponse> Create(CreateRequest model)
         {
             var account = _accountService.Create(model);
             return Ok(account);
         }

         [Authorize]
         [HttpPut("{id:int}")]
         public ActionResult<AccountResponse> Update(int id, UpdateRequest model)
         {
             // users can update their own account and admins can update any account
             if (id != Account.Id && Account.Role != Role.Admin)
                 return Unauthorized(new { message = "Unauthorized" });

             // only admins can update role
             if (Account.Role != Role.Admin)
                 model.Role = null;

             var account = _accountService.Update(id, model);
             return Ok(account);
         }

         [Authorize]
         [HttpDelete("{id:int}")]
         public IActionResult Delete(int id)
         {
             // users can delete their own account and admins can delete any account
             if (id != Account.Id && Account.Role != Role.Admin)
                 return Unauthorized(new { message = "Unauthorized" });

             _accountService.Delete(id);
             return Ok(new { message = "Account deleted successfully" });
         }

         // helper methods

         private void setTokenCookie(string token)
         {
             var cookieOptions = new CookieOptions
             {
                 HttpOnly = true,
                 Expires = DateTime.UtcNow.AddDays(7)
             };
             Response.Cookies.Append("refreshToken", token, cookieOptions);
         }

         private string ipAddress()
         {
             if (Request.Headers.ContainsKey("X-Forwarded-For"))
                 return Request.Headers["X-Forwarded-For"];
             else
                 return HttpContext.Connection.RemoteIpAddress.MapToIPv4().ToString();
         }
     }
 }

---

谢谢你的帮助，John，我意识到我没有迁移EF数据库，所以这是我的错。迁移完成了吗？它现在正在工作。

请提供一个示例，因为您提供的代码似乎超出了演示该问题的要求。还请说明您是如何调用API的。您是否尝试过先在控制器方法的第一行上设置断点，然后逐行检查代码以找出问题的根源？

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;

namespace Africanbiomedtests.Entities
{
    public class Account
    {
        public int Id { get; set; }
        public string Title { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Email { get; set; }
        public string PasswordHash { get; set; }
        public bool AcceptTerms { get; set; }
        public Role Role { get; set; }
        public HealthcareProvider HealthcareProvider { get; set; }
        public string VerificationToken { get; set; }
        public DateTime? Verified { get; set; }
        public bool IsVerified => Verified.HasValue || PasswordReset.HasValue;
        public string ResetToken { get; set; }
        public DateTime? ResetTokenExpires { get; set; }
        public DateTime? PasswordReset { get; set; }
        public DateTime Created { get; set; }
        public DateTime? Updated { get; set; }
        public List<RefreshToken> RefreshTokens { get; set; }

        public bool OwnsToken(string token) 
        {
            return this.RefreshTokens?.Find(x => x.Token == token) != null;
        }
    }
}

using System.ComponentModel.DataAnnotations;

namespace Africanbiomedtests.Models.Accounts
{
    public class RegisterRequest
    {
        [Required]
        public string Title { get; set; }

        [Required]
        [StringLength(30)]
        [RegularExpression(@"^[A-Z]+[a-zA-Z]*$")]
        public string FirstName { get; set; }

        [Required]
        [StringLength(30)]
        [RegularExpression(@"^[A-Z]+[a-zA-Z]*$")]
        public string LastName { get; set; }

        [Required]
        [EmailAddress]
        public string Email { get; set; }

        [Required]
        [MinLength(6)]
        public string Password { get; set; }

        [Required]
        [Compare("Password")]
        public string ConfirmPassword { get; set; }

        [Range(typeof(bool), "true", "true")]
        public bool AcceptTerms { get; set; }
    }
}