[yocto] populate_sdk_ext => "Cannot install package nativesdk-git-perltools"

[Aaron_Wright at selinc.com]

I'm trying to create an extended SDK for a multilib environment and I run 
into this error during the buildtools-tarball-1.0-r0 do_populate_sdk task:

...snip lots of configuring lines...

Configuring nativesdk-buildtools-perl-dummy.
Collected errors:
 * check_conflicts_for: The following packages conflict with 
nativesdk-perl:
 * check_conflicts_for:         nativesdk-buildtools-perl-dummy *
 * opkg_solver_install: Cannot install package nativesdk-git-perltools.

...snip lots of configuring lines...

I'm using morty:

commit 493b1c9aeaeb60440085bb3692e9362a87553bce
Author: Richard Purdie <richard.purdie at linuxfoundation.org>
Date:   Tue Oct 10 11:01:38 2017 +0100

I'm not sure what to look for to solve this issue. Any ideas?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.yoctoproject.org/pipermail/yocto/attachments/20171010/645b0224/attachment.html>