What does this mean? make: *** [stamp-build] Error 2

[John Foster <jfoster@augustmail.com>]

What does this mean?  i get this error message every time I try to
compile a new kernel.

make: *** [stamp-build] Error 2

Using 'make-kpkg clean' then 'make-kpkg binary' the system makes the
kernel-doc-2.4.7-Custom.1.00_all.deb   and
kernel-source-2.4.7-Custom.1.00_all.deb  :then it dies with the error
message above. Any help is appreciated.