这是因为您的项目属性中指定了一个XML文档文件，而您的方法/类是公共的，缺乏文档。 你可以:

禁用XML文档: 右键单击您的项目->属性->“构建”选项卡->取消选中XML文档文件。 坐下来自己写文档吧!

XML文档的总结如下:

/// <summary>
/// Description of the class/method/variable
/// </summary>
..declaration goes here..

文件>编辑>查看项目(点击)

下拉弓的底部(点击打开/当前工作>属性)， 打开项目属性页在“构建”下的“输出”。取消选中“XML文档”复选框。

重建，没有警告。

一个非常简单的方法是在.csproj文件中添加一个属性:

<Project>
    <PropertyGroup>
        ...     
        <!--disable missing comment warning-->
        <NoWarn>$(NoWarn);1591</NoWarn>
    </PropertyGroup>
...

#pragma warning disable 1591
#pragma warning disable 1591
#pragma warning disable 1572
#pragma warning disable 1571
#pragma warning disable 1573
#pragma warning disable 1587
#pragma warning disable 1570

I know this is a really old thread, but it's the first response on google so I thought I'd add this bit of information: This behavior only occurs when the warning level is set to 4 under "Project Properties" -> "Build". Unless you really need that much information you can set it to 3 and you'll get rid of these warnings. Of course, changing the warning level affects more than just comments, so please refer to the documentation if you're unsure what you'll be missing: https://msdn.microsoft.com/en-us/library/thxezb7y.aspx

您需要为显示警告的成员添加/// Comment。

参见下面的代码

public EventLogger()
{
    LogFile = string.Format("{0}{1}", LogFilePath, FileName);
}

显示警告 缺少公开可见类型或成员'.EventLogger()'的XML注释

我为成员添加了评论，警告消失了。

///<Summary>
/// To write a log <Anycomment as per your code>
///</Summary>
public EventLogger()
{
    LogFile = string.Format("{0}{1}", LogFilePath, FileName);
}