newbie rm --^file question

["Hoji, Akihiko" <akh22@xxxxxxxx>]

Hi, 


I am trying to delete all the files except a few files having the same file extension.  I did the following;

setopt extended glob
rm -rf —^file.ext.*

This gives an error message, “zsh, no matches found:”

I would appreciate a poster as to what I am doing wrong. 

Thanks in advance. 

AH