I upgraded from Xamarin.Forms.Maps 1.4.0.0 to 1.5.0.6447. My solution contains several projects, including a lot of PCLs, two Android, and two iOS projects. Everything was building fine before the upgrade. Now, I get errors below. The problem seems well-expressed, but I have no clue as to how to approach this problem. I suspect this all has to do with the new GooglePlayServices dependencies that come with Xamarin.Forms 1.5.0.6447. I once tried upgrading that package with Xamarin.Forms 1.4.0.0, and got similar problems, so I reverted back to the previous version of GooglePlayServices. Anyway, I wasted an entire day yesterday messing with this problem. I tried all sorts of things, including removing and re-adding latest xamarin forms and xamarin google play bindings; nothing worked. Hopefully, someone more knowledgable can give me some clues as to what to try next.
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/common_attrs.xml(14): error APT0000: Attribute "imageAspectRatioAdjust" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/common_attrs.xml(23): error APT0000: Attribute "imageAspectRatio" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/common_attrs.xml(28): error APT0000: Attribute "circleCrop" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(6): error APT0000: Attribute "mapType" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(16): error APT0000: Attribute "cameraBearing" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(17): error APT0000: Attribute "cameraTargetLat" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(18): error APT0000: Attribute "cameraTargetLng" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(19): error APT0000: Attribute "cameraTilt" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(20): error APT0000: Attribute "cameraZoom" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(22): error APT0000: Attribute "liteMode" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(27): error APT0000: Attribute "uiCompass" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(28): error APT0000: Attribute "uiRotateGestures" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(29): error APT0000: Attribute "uiScrollGestures" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(30): error APT0000: Attribute "uiTiltGestures" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(31): error APT0000: Attribute "uiZoomControls" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(32): error APT0000: Attribute "uiZoomGestures" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(33): error APT0000: Attribute "useViewLifecycle" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(34): error APT0000: Attribute "zOrderOnTop" has already been defined
/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/obj/Debug/resourcecache/247AECA5FF944002626324E916BB3ECD/res/values/maps_attrs.xml(36): error APT0000: Attribute "uiMapToolbar" has already been defined
Task "Aapt" execution -- FAILED
Done building target "_UpdateAndroidResgen" in project "/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/GisAndroid.csproj".-- FAILED
Done building project "/VM Shared Folders/PhasePointShare/Development/GISharp/GisAndroid/GisAndroid.csproj".-- FAILED
Build FAILED.