My target mono android version is 8.0 and i am building my app at API level 26 while building droid I get such hundreds of warnings
Warnings are something like this..
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Animation.design_fab_in. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Animation.design_fab_out. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.MediaRouteControllerWindowBackground. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteBluetoothIconDrawable. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteCastDrawable. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteChooserPrimaryTextStyle. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteChooserSecondaryTextStyle. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteCollapseGroupDrawable. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteConnectingDrawable. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteControllerPrimaryTextStyle. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteControllerSecondaryTextStyle. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteControllerTitleTextStyle. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteExpandGroupDrawable. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteOffDrawable. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Attribute.mediaRouteOnDrawable. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Boolean.abc_action_bar_embed_tabs_pre_jb. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Boolean.abc_action_bar_expanded_action_views_exclusive. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Boolean.abc_config_allowActionMenuItemTextWithIcon. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Color.design_textinput_error_color_dark. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Color.design_textinput_error_color_light. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Color.hint_foreground_material_dark. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Color.hint_foreground_material_light. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Dimension.abc_dialog_list_padding_vertical_material. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Dimension.abc_search_view_text_min_width. Please check that your Nuget Package versions are compatible.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(1476,2): warning XA0106: Skipping BMS.Droid.Resource.Dimension.design_bottom_sheet_modal_peek_height. Please check that your Nuget Package versions are compatible.