Asp.net Webapi 2依赖项注入导致错误 [英] Asp.net webapi 2 dependency injection giving error that

问题描述

我正在使用统一容器通过以下代码通过属性进行依赖度注入

Hi I am using unity container for depency injection by attributes using following code

container.RegisterTypes(
                                   AllClasses.FromLoadedAssemblies()
                                       .Where(t => t.GetCustomAttributes<abcAttribute>(true).Any()),
                                   WithMappings.FromMatchingInterface,
                                   WithName.Default,
                                   WithLifetime.PerThread);

问题是有时我会遵循以下异常，如果我清理并重建解决方案，该异常将会发生.我想念什么吗?

Problem is sometimes i get following exception which goes if i clean and rebuild the solution. am i missing something ?

An error occurred when trying to create a controller of type ''ABCController''. Make sure that the controller has a parameterless public constructor.","ExceptionType":"System.InvalidOperationException

我尝试过的事情:

What I have tried:

 tried creating parameterless constructor but again get same exception. the exception does not occur when solution is cleaned and build for the first time
<pre>public ABCController()
        {

        }

推荐答案

报价:

问题有时是我遇到以下异常如果我清洁并重建解决方案，该去.我错过了什么吗?

Problem is sometimes i get following exception which goes if i clean and rebuild the solution. am i missing something ?

是的.您错过了另一个清理和重建的工作.

Yes. You''re missing another clean and rebuild.

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