I have a problem How do I compile the android apps?

the problem is that I can not get them to compile and they give me the following error, CS103 '
The name 'inizializecomponent' does not exist in the current context.
El nombre ''inizializecomponent' no existe en el contexto actual.
How do I solve this problem? happens when I compile applications on Android and of course this does not compile.
In my Visual Studio 2017 I have the error CS103, thanks