rgrep-append.el not functional

[Chun-cheng Chen]

Hi,

I installed the rgrep-append.el in emacs. But after the installation, I'm hitting the following error when conduct a rgrep-append and rgrep. The error message is a little hard for me to react upon. Any ideas what might be the issues and suggestions?

Step 1: M-x rgrep-append:

Step 2: search for Pfizer

Step 3: specify files as *

Step 4: specify directory as ~/

Step 5: specify y, n, or default all result in the following error:

Error Message:

Snippet of my .emacs file:

(load "~/elisp" 'install)

(add-to-list 'load-path (expand-file-name "~/elisp"))

(require 'auto-install)

(require 'install)

(require 'rgrep-append)

Thanks,

Jason