.net Core 2.1无法在startup.cs中引用自动映射器 [英] .net core 2.1 can't reference automapper in startup.cs

问题描述

我在nugent面板中安装了

In my nugent panel, I installed

AutoMapper v7.0.1AutoMapper.extensions.microsoft.dependencyinjection v5.0.1

AutoMapper v7.0.1 AutoMapper.extensions.microsoft.dependencyinjection v5.0.1

在我的Startup.cs中，

In my Startup.cs,

我添加了

Services.AddAutoMapper();

Services.AddAutoMapper();

但是编译器给出了

Severity    Code    Description Project File    Line    Suppression State
Error   CS1061  'IServiceCollection' does not contain a definition for 'AddAutoMapper' and no accessible extension method 'AddAutoMapper' accepting a first argument of type 'IServiceCollection' could be found (are you missing a using directive or an assembly reference?)  OPEApiService   J:\Projects\OPEApiService\OPEApiService\Startup.cs  58  Active

我尝试清理，重建，关闭并重新打开VS.

I tried clean, rebuild, close and reopen VS.

感谢您的帮助.

谢谢

推荐答案

这可能是两个软件包之间的兼容性问题.如果您同时安装了AutoMapper和AutoMapper.extensions.microsoft.dependencyinjection程序包，请删除它们并仅添加AutoMapper.extensions.microsoft.dependencyinjection.它依赖于AutoMapper软件包.

This could be a compatibility issue between the two packages. If you have both the AutoMapper and AutoMapper.extensions.microsoft.dependencyinjection packages installed, remove them and add only the AutoMapper.extensions.microsoft.dependencyinjection. It has a dependency on the AutoMapper package.

我遇到了同样的问题，并且能够解决.

I had this same issue and was able to resolve it.

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