[jonah] Cache errors

[Rick Emery]

Having installed the cache package this morning, I now get these errors in jonah
(and consequently on my portal page):

Class definition of Horde_Cache_file not found. [on line 57 of
"horde/jonah/lib/Weather.php"]

Class definition of Horde_Cache_file not found. [on line 154 of
"horde/jonah/lib/News.php"]

Do I have something misconfigured?

Thanks in advance!

--
Rick Emery

"When once you have tasted flight, you will forever walk the Earth
 with your eyes turned skyward, for there you have been, and there
 you will always long to return"
                                              -- Leonardo Da Vinci