Xamarin Bindings Library to interface to a Java aar

I have tried to use the automated Visual Studio reflection, but I have the following errors: JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 65 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL]$1 : Expecting a stackmap frame at branch target 38 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 29 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 10 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 48 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 18 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 9 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 48 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 17 JARTOXML : warning J2XA006: missing class error was raised while reflecting [login to view URL] : Expecting a stackmap frame at branch target 36 JARTOXML : warning J2XA006: missing class error was raised while reflecting com.alien.rfid.a : Expecting a stackmap frame at branch target 72 JARTOXML : warning J2XA006: missing class error was raised while reflecting com.alien.rfid.a$1 : Expecting a stackmap frame at branch target 292 JARTOXML : warning J2XA006: missing class error was raised while reflecting com.alien.rfid.a$2 : Expecting a stackmap frame at branch target 23 JARTOXML : Java HotSpot(TM) 64-Bit Server VM warning : ignoring option UseSplitVerifier; support was removed in 8.0 And then obviously those cant be found: BINDINGSGENERATOR : warning BG8900: Type [login to view URL]: FxDG naming violation: Type name 'RFID' matches namespace part 'Rfid'. BINDINGSGENERATOR : warning BG8700: Unknown return type [login to view URL] in method BlockPermalock in managed type Com.Alien.Rfid.RFIDReader. BINDINGSGENERATOR : warning BG8700: Unknown return type [login to view URL] in method GetMask in managed type Com.Alien.Rfid.RFIDReader. BINDINGSGENERATOR : warning BG8700: Unknown return type [login to view URL] in method GetSession in managed type Com.Alien.Rfid.RFIDReader. etc etc I would like someone with experience in this to create and correct a VS 2017 binding lib with code, and then offer ongoing assistance for type corrections. I include the aar file for your guidance.