Mine

Warning: file_put_contents(/Applications/MAMP/htdocs/subversion/wdtc20/trunk/wdtc_2_0/app/tmp/cache/models/default_wdtc_2_0_list) [function.file-put-contents]: failed to open stream: Permission denied in /Applications/MAMP/htdocs/subversion/wdtc20/trunk/wdtc_2_0/cake/basics.php on line 932

---------the actual code its trying to run---------

		if ($data === null) {
			// Read data from file
			if (file_exists($filename) && $filetime !== false) {
				if ($filetime + $timediff < $now) {
					// File has expired
					@unlink($filename);
				} else {
					$data = file_get_contents($filename);
				}
			}
		} else {
		
			file_put_contents($filename, $data);   ------line 932
		}
		return $data;
	}