Unknown configuration file: "@" Parse error in configuration file "@" at line @, col @ @: Usage @ s [-cxx] input_file [output_file] Error in file management Unexpected exception <@> Undefined variable: "@" Error in @: end of line in string "@" Error in @: end of line in char "@" Error in @: unable to open "@" Error in @: extra argument for "#@" directive Error in @: missing file name for "#include" Error in @: missing '>' for filename "@" Error in @: not a valid filename "@" Parsing error (@) @) Unable to open "@" @: Need input file @: Usage @ [-conf conf_file] [-coord] [-cxx] [-d] input_file [output_file]