[yocto] Missing or unbuildable dependency chain

[ravikiran j]

Hi everybody,
I am trying to change the packagegroup from packagegroup-core-base to
packagegroup-core-extende in core-image-minimal-xfce recipe file in
meta-xfce layer.

But i am getting following errors.


ERROR: Nothing RPROVIDES 'dnsmasq' (but
/home/kamama-yocto/yocto/poky/meta-openembedded/meta-oe/recipes-connectivity/networkmanager/
networkmanager_1.0.12.bb RDEPENDS on or otherwise requires it)
NOTE: Runtime target 'dnsmasq' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['dnsmasq']
NOTE: Runtime target 'networkmanager-dev' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['networkmanager-dev',
'dnsmasq']
NOTE: Runtime target 'networkmanager' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['networkmanager', 'dnsmasq']
NOTE: Runtime target 'xfce4-power-manager-dev' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['xfce4-power-manager-dev',
'networkmanager', 'dnsmasq']
NOTE: Runtime target 'xfce4-powermanager-plugin' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['xfce4-powermanager-plugin',
'networkmanager', 'dnsmasq']
NOTE: Runtime target 'packagegroup-xfce-extended' is unbuildable,
removing...
Missing or unbuildable dependency chain was: ['packagegroup-xfce-extended',
'xfce4-powermanager-plugin', 'networkmanager', 'dnsmasq']
ERROR: Required build target 'core-image-minimal-xfce' has no buildable
providers.
Missing or unbuildable dependency chain was: ['core-image-minimal-xfce',
'packagegroup-xfce-extended', 'xfce4-powermanager-plugin',
'networkmanager', 'dnsmasq']


How to solve this problem ?
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