ruby bindings, ruby 1.9.3 and xapian

Hello,

I've problem with xapian or sth.
Ubuntu 8.04, ruby 1.9.3 with rvm, when Im trying to initialize
database, Im getting this error:

irb > require 'xapian'
    ==> true

irb >  database = Xapian::WritableDatabase.new('/full_path/db/xapian_db/development', Xapian::DB_CREATE_OR_OPEN)
ArgumentError: Wrong arguments for overloaded method 'WritableDatabase.new'.
Possible C/C++ prototypes are:
    WritableDatabase.new()
    WritableDatabase.new(std::string const &path, int action)
    WritableDatabase.new(Xapian::WritableDatabase const &other)

        from (irb):2:in `initialize'
        from (irb):2:in `new'
        from (irb):2
        from script/rails:6:in `require'
        from script/rails:6:in `<main>

If I use
any idea what Im doing wrong?

for example:

 database = Xapian::Database.new()
    ==> #<Xapian::Database:0x94fbb3c>

and when I set path, I get error

database = Xapian::Database.new('db/xapian_db/development/')
ArgumentError: Wrong arguments for overloaded method 'Database.new'.
Possible C/C++ prototypes are:
    Database.new()
    Database.new(std::string const &path)
    Database.new(Xapian::Database const &other)

        from (irb):5:in `initialize'
        from (irb):5:in `new'
        from (irb):5

any help will be very welcome :)

--

-- 
Best regards,
 Rafi                          mailto:webdeveloper <at> poczta.onet.pl