Root Can't Flash GrdLock's eris21official-root

[rentjr]

okay, I have successfully rooted my eris, I have the recovery installed. Now when I went to flash the 0_3.zip I had some error and the flash aborted. Then I tried GrdLock's eris21official and no dice. Then I tried Sense-able 0.7 and viola, no problems at all! Then I flashed the 2.0 version and the dialer one update as well, also with no problems. Now Im ready to try to flash GrdLock's ROM again and still, no dice. I did a new download and checked md5sum and everything is good but for some reason it wont flash...

This is what I get:

E:Can't symlink /system/xbin/sendmail

E:Failure at line 105:
symlink busybox SYSTEM:xbin/send

Installation aborted

I haven't tried any other ROMS except the senseable ROM