problem patching

[Ronoh55]

everytime I try to patch (with any patch) it comes up with:

can't find file to patch at line 5
perhaps you used the wrong -p or --strip option?
the text leading up to this was
------------------------------
Index: apps/keymaps/keymap-e200.c
=============================================
--- apps/keymaps/keymap-e200.c (revision 14682)
+++ apps/keymaps/keymap-e200.c (working copy)
-------------------------------
file to patch:

Ive tried the file in the text and it keeps on failing, what should/can I do to get this patching correctly?

Edit: I am using yesterday's svn, I'm updating to today's currently though