[meta-virtualization] build kvm error global name 'incompatible_license_contains' is not defined

[Lai Eddy]

Im trying to build a yocto image with kvm support according to
https://wiki.yoctoproject.org/wiki/Virtualization_with_KVM

but " $ bitbake kvm-image-minimal " got following error:
any configuration I missed?

Eddy
----------------------------------------------------------------------------------------------

ERROR: Error executing a python function in
<code>:
| ETA:  00:01:03

The stack trace of python calls that resulted in this exception/failure was:
File: '<code>', lineno: 10, function: <module>
     0006:__anon_33__media_isan_data_poky_meta_classes_devshell_bbclass(d)
     0007:__anon_86__media_isan_data_poky_meta_classes_sstate_bbclass(d)
     0008:__anon_45__media_isan_data_poky_meta_classes_blacklist_bbclass(d)
     0009:__anon_139__media_isan_data_poky_meta_classes_siteinfo_bbclass(d)
 ***
0010:__anon_35__media_isan_data_poky_oe_core_meta_recipes_support_libproxy_libproxy_0_4_11_bb(d)
File:
'__anon_35__media_isan_data_poky_oe_core_meta_recipes_support_libproxy_libproxy_0_4_11_bb',
lineno: 2, function:
__anon_35__media_isan_data_poky_oe_core_meta_recipes_support_libproxy_libproxy_0_4_11_bb
     0001:def
__anon_35__media_isan_data_poky_oe_core_meta_recipes_support_libproxy_libproxy_0_4_11_bb(d):
 *** 0002:    if incompatible_license_contains("GPLv3", "x", "", d) == "x"
or bb.utils.contains("DISTRO_FEATURES", "x11", "x", "", d) == "":
     0003:        d.setVar("EXTRA_OECMAKE",
d.getVar("EXTRA_OECMAKE").replace("-DWITH_GNOME=yes", "-DWITH_GNOME=no"))
     0004:        d.setVar("DEPENDS", " ".join(i for i in
d.getVar("DEPENDS").split() if i != "gconf"))
     0005:
Exception: NameError: global name 'incompatible_license_contains' is not
defined

ERROR: Failed to parse recipe:
/media/isan/data/poky/oe-core/meta/recipes-support/libproxy/
libproxy_0.4.11.bb

Summary: There were 45 WARNING messages shown.
Summary: There were 2 ERROR messages shown, returning a non-zero exit code.
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