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…

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…

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.…

今天调试 asp.net core 2.0 项目时遇到了如下错误: TypeLoadException: Could not load type 'Microsoft.AspNetCore.Mvc.Internal.IHttpResponseStreamWriterFactory' from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=2.1.2.0, Culture=neutral, PublicKeyToken=adb9793829dda…

前言:在web项目的.net framework时文件上传时,自己常用一般处理程序接受上传文件,上传文件的大小限制是可以项目的webconfig里配置.   到core项目使用一般处理程序变成了中间件,但是使用中间件接受的时候,就遇到了上传大文件时,抛出的异常: httpRequest.Form threw an exception of type Microsoft.AspNetCore.Server.Kestrel.Core.BadHttpRequestException : Request…

最近老大让我看Orchard Core,这是一个CMS系统.可以先参考大佬的文章:https://www.cnblogs.com/shanyou/archive/2018/09/25/9700422.html 我新建了一个空项目,更改Startup.cs 然后启动项目,想着应该可以正常运行,可是报了下面这个错误: The type 'RazorViewAttribute' exists in both 'Microsoft.AspNetCore.Mvc.Razor, Version=2.1.1.…

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…

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 '…