我在我的项目中添加了 EPPlus 和 OfficeOpenXml 的使用。但是,当我运行我的项目时,我会收到以下错误和警告:
警告 :
The referenced assembly "EPPlus" could not be resolved because it has a dependency on "System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" which is not in the currently targeted framework ".NETFramework,Version=v4.0,Profile=Client". Please remove references to assemblies not in the targeted framework or consider retargeting your project.
错误:
The type or namespace name 'OfficeOpenXml' could not be found (are you missing a using directive or an assembly reference?)
The type or namespace name 'ExcelPackage' could not be found (are you missing a using directive or an assembly reference?)
有人可以帮我弄清楚吗?