在新建asp.net core 应用后, 添加了自定义的ApplicationDbContext 和ApplicationUser ,并添加了Identity认证后, 会出现 InvalidOperationException: Unable to resolve service for type 'Microsoft.AspNetCore.Identity.UserManager`1[Microsoft.AspNetCore.Identity.IdentityUser]' 错误.需要把相关网页…
An unhandled exception occurred while processing the request. InvalidOperationException: Unable to resolve service for type 'Microsoft.AspNetCore.Http.IHttpContextAccessor' while attempting to activate 'DInjectionProvider.WholeInjection'. Microsoft.E…
System.InvalidOperationException HResult=0x80131509 Message=Unable to resolve service for type 'Microsoft.AspNetCore.ResponseCompression.IResponseCompressionProvider' while attempting to activate 'Microsoft.AspNetCore.ResponseCompression.ResponseComp…
Unable to resolve service for type 'Microsoft.Extensions.Logging.ILogger' while attempting to activate 'xxxxx.Controllers.xxxxController'. 构造注入时需要加入类名 public class BookSizesController : Controller { private readonly ILogger<BookSizesController> _log…
.NET Core 的版本是 3.1遇到的问题是 Action 中 return View() 的时候报错 An unhandled exception occurred while processing the request. InvalidOperationException: No service for type 'Microsoft.AspNetCore.Mvc.ViewFeatures.ITempDataDictionaryFactory' has been registered.…
感谢朋友支持本博客,欢迎共同探讨交流,因为能力和时间有限,错误之处在所难免.欢迎指正. 假设转载,请保留作者信息. 博客地址:http://blog.csdn.net/qq_21398167 原博文地址:http://blog.csdn.net/qq_21398167/article/details/46410643 (1)unable to connect to server at '192.168.0.22:16509': Network is unreachable 原因通常是由于ip地址…
I'm using ubuntu14 LTS. Problems: 1. When run roscore, got a mistake and an advice to ping the localhost. 2. Nearly every time I run a directive with sudo, I got a warning that unable to resolve host. It turns out, the reason is I changed the ubuntu…
警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'accountService': Injection of resource dependencies failed; nested exception…
最近在研究.netcore,尝试把前后端完全分离.但是在写接口的时候,Post参数是FromBody的时候报错了 Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[] An unhandled exception has occurred while executing the request. System.InvalidCastException: Unable to cast object of type '…
> Task :HelloWorld_Web:compileGroovy startup failed: E:\GradleDemoManyModules\ExampleHelloWorld\HelloWorld_Web\src\main\groovy\cn\dmahz\web\HelloWorldApi.groovy: 4: unable to resolve class cn.dmahz.service.HelloService @ line 4, column 1. import cn.d…