Parsing error

Hi everybody.
I try to use dot on Windows 7.
It produces errors only when I use it via java:

WARNING: Lexer[6(12)]: Unrecognized character '.'(46) -- ignored
ERROR: Parser[6(16)]: Syntax error
Exception: at [6(16)]: Syntax error
att.grappa.GraphParserException: at [6(16)]: Syntax error
at att.grappa.Parser.report_error(Parser.java:372)
at java_cup.runtime.lr_parser.syntax_error(lr_parser.java:396)
at java_cup.runtime.lr_parser.parse(lr_parser.java:595)

See item

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