PageView Cache cannot be loaded. Please Recompile

Warning! PageView cache cannot be loaded. Please recompile.
Warning: Cannot modify header information - headers already sent by (output started at /home/terabyte/public_html/inc/classes/BxDolPageView.php:37) in /home/terabyte/public_html/inc/design.inc.php on line 495

woooohoooo, i blew it up. i added this page just as i have added multiple others, by using the sql injection as displayed on mrp's tutorial site

now this is the first time i had any problem with it, this error message above popped up when i called the view page from admin. well almost this error, minus the Please Recompile. since this is a cache page, i have read or thought i have read, that you could just clear the cached files, and all would be well. ha ha ha, its sicker than it was before. i am trying to add a php include page, by creating a new page, and adding the source that i got from boonexnerd tutorials

well i am not having sucess, if there is anybody who has done this with sucess other than jtadeo, then please hit me up. i am using MySQL Administrator, and not phpmyadmin. typically this works out just fine for me when creating custom pages. now since i have thought it about, im wondering if in fact, his tutorial does cover an actual page build, or is it just for building a block, i just realized that the page it was supposed to write to was index. 

ok so if there is anybody who has used boonexNerd's tweak for adding php to a new page, then please let me know? 

later,
DosDawg

Are you hand coding the pages?

The "headers already sent" error is usually caused by having white space before or after the opening and closing PHP tags (<?php . . . ?>)

In a PHP file there should not be a space(s) before the beginning <? or after the closing ?>  ....

Have you recently edited any related PHP files or the file indicated?
.

I have the same problem.
I've added code and deleted. So now I get this error

And I was doing exectly the same. Adding a new PHP page.