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Wpf 安装MahApps.Metro时出错“;正在尝试将此软件包安装到以';为目标的项目中;。NETFramework,版本=v3.5'&引用;_Wpf_Windows - Fatal编程技术网

Wpf 安装MahApps.Metro时出错“;正在尝试将此软件包安装到以';为目标的项目中;。NETFramework,版本=v3.5'&引用;

Wpf 安装MahApps.Metro时出错“;正在尝试将此软件包安装到以';为目标的项目中;。NETFramework,版本=v3.5'&引用;,wpf,windows,Wpf,Windows,我正在尝试在我的Visual Basic.NetFramework 3.5项目上安装MahApps.Metro,但我有一个错误 Could not install package 'MahApps.Metro 0.10.0.1'. You are trying to install this package into a project that targets '.NETFramework,Version=v3.5', but the package does not contain any

我正在尝试在我的Visual Basic.NetFramework 3.5项目上安装MahApps.Metro,但我有一个错误

Could not install package 'MahApps.Metro 0.10.0.1'. You are trying to install this package into a project that targets '.NETFramework,Version=v3.5', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.

我不明白我已经在.NetFramework 3.5。。如何解决此问题?

此库似乎需要.NET 4+。升级到更高的.NET版本(4.0或4.5),它应该可以工作。

这个库似乎需要.NET 4+。升级到更高的.NET版本(4.0或4.5),它应该可以工作