unable to find an inherited method for function ‘dbGetQuery’ for signature ‘"RMongo", "character"’

[EnricowithR]

I have been running the following query correctly:
json<- '{"deleted_at": null}'
emails <- dbGetQuery(conn.rmongo, "emails",json, skip=0, limit=1000000000000000)

but today, without having done any change I get the following error:
Error in (function (classes, fdef, mtable) :
unable to find an inherited method for function ‘dbGetQuery’ for signature ‘"RMongo", "character"’

What do you suggest?

[kheaactua]

I wrote a comment about that https://stackoverflow.com/questions/22395772/optional-arguments-in-s4-generics. For me, this was because I have to dbGetQuery functions in scope, one from RSQLite, and one from RMongo, and the former was being called. To fix it, prefix it with the RMongo namespace.