The main purpose of the bundle is to build new objects (map, marker, ...) through the Symfony2 DI container. In order to give you a new object each time you request it on the container, all services have been scoped "prototype". Doing that, configure the container to always return a new instances when we request it. Pretty cool :)
Anyway, this has a big drawback. Now, all these services can not be injected in a "normal" service (scoped "container"). That's a DI security as it can not guarantee the objects integrity & will result to the following exception:
ScopeCrossingInjectionException: Scope Crossing Injection detected: The definition "your.service" references the
service "fungio_google_map.map" which belongs to another scope hierarchy. This service might not be available
consistently. Generally, it is safer to either move the definition "your.service" to scope "prototype", or declare
"container" as a child scope of "prototype". If you can be sure that the other scope is always active, you can set the
reference to strict=false to get rid of this error.
Don't worry, the bundle has been designed to solve this issue. Instead of injecting the fungio_google_map.map service,
you need to inject the fungio_google_map.map.builder which lives in the "container" scope. This service is responsible
to build a new map instance & is used by the container when you request a map. All services scoped "prototype" has been
designed like the map one.