错误出现在visualstudio2017和xamarin上:SeverityCodeDescriptionProjectFileLineSuppressionStateWarningThe$(TargetFrameworkVersion)forFormsViewGroup.dll(v7.1)isgreaterthanthe$(TargetFrameworkVersion)foryourproject(v6.0).Youneedtoincreasethe$(TargetFrameworkVersion)foryourproject.IpiCommunicationXamarin.And

我是Xamarin的新手。我已经安装了带有Xamarin组件的VisualStudio2017，我的androidsdk已更新到Android(v6.0)。我创建了新的Xamarin项目，但出现错误:SeverityCodeDescriptionProjectFileLineSuppressionStateWarningThe$(TargetFrameworkVersion)forXamarin.Forms.Platform.dll(v7.1)isgreaterthanthe$(TargetFrameworkVersion)foryourproject(v6.0).Youneedtoi