Customized Ubuntu kernel installation problem

[john1313]

I have compiled kernel on 64 bit running ubuntu machine by using below command
CONCURRENCY_LEVEL=5 nice fakeroot make-kpkg --initrd
--append-to-version=-32-plx --overlay-dir=$(pwd) kernel-image
kernel-headers

After compilation it generated two files

-linux-headers-3.6.0-rc3-32-plx_3.6.0-rc3-32-plx-10.00.Custom_amd64.deb
-linux-image-3.6.0-rc3-32-plx_3.6.0-rc3-32-plx-10.00.Custom_amd64.deb

but when i install this package by using this command
dpkg -i linux-image-3.6.0-rc3-32-plx_3.6.0-rc3-32-plx-10.00.Custom_amd64.deb
on other machine running 64 bit ubuntu it gives me these errors

dpkg:error processing linux-image-3.6.0-rc3-32-plx_3.6.0-rc3-32-plx-10.00.Custom_amd64.deb (--install):
linux-image-3.6.0-rc3-32-plx:3.6.0-rc3-32-plx_3.6.0-rc3-32-plx-10.00.Custom (Multi-Arch: no) is not co-installable with linux-image-3.6.0-rc3-32-plx:i386 3.6.0-rc3-32-plx_3.6.0-rc3-32-plx-10.00.Custom (Multi-Arch:no) which is currently installed
Errors were encountered while processing:
linux-image-3.6.0-rc3-32-plx_3.6.0-rc3-32-plx-10.00.Custom_amd64.deb

Please tell me wt to do.