这是如何解决你的问题

1.首先在bin文件夹中添加你的dll br />
2.添加对此dll的引用

3.如果没有添加IF引用，则从引用中移除所有dll引用（最近的选项卡）

以及请注意，从obj文件夹中删除所有文件

然后再添加dll和refeence，然后清理，重建应用程序

这将解决您的问题。

This is how to resolve your problem
1. First add your dll in bin folder
2. Add reference to this dll
3. IF reference isnot being added then remove all dll references from reference (recent tab)
and also note that remove all files from obj folder
and then again add dll and refeence and then clean,rebuild application
this will def solve your problem.