PHP Novice, verification code related issues

PHP Novice, Verification code problem
Under an open source code research, encountered the problem of verification code, ask, the following is the error code:

Errid:2
Errstr:imagettftext () [Function.imagettftext]: Problem loading Glyph
errfile:iweb_path/core\util\captcha_class.php
errline:256
Errtime:11-09-22 14:38:21
# #出错时变量的值: # #
Array (
' Text ' = ' Nuheb ',
' Fontcfg ' =
Array (
' Spacing ' = 2,
' MinSize ' = 22,
' MaxSize ' = 24,
' Font ' = ' Font.ttf ',
),
' Fontfile ' = ' E:\\php\\lib\\core\\util/font.ttf ',
' lettersmissing ' = 0,
' Fontsizefactor ' = 1,
' X ' = 60,
' Y ' = 91,
' Length ' = 5,
' I ' = 0,
' Degree ' =-5,
' FontSize ' = 78,
' Letter ' = ' n ',
)
-------

------Solution--------------------
Show me The code~
------Solution--------------------
discuss
Show me The code~

------Solution--------------------
Errid:2
Errstr:imagettftext () [Function.imagettftext]: Problem loading Glyph
errfile:iweb_path/core\util\captcha_class.php
errline:256
Errtime:11-09-22 14:38:21

Is this error record a debug feature of the open source code strip?
The hints are clear:
captcha_class.php the No. 256 line in this file is wrong. Imagetfrtext () function error, it should be a character file loading error.


------Solution--------------------
Imagetfrtext () function error, unable to load the string in! You're checking that function.
------Solution--------------------
discuss

Imagetfrtext () function error, unable to load the string in! You're checking that function.

------Solution--------------------
Font file does not exist

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