OE-core's config sanity checker detected a potential misconfiguration

Hi All,

I was trying to add meta-custom layer which is buit on dunfell version, Integrating my custom layer to webos Ose which has krikstone version.

currently getting error related to:
OE-core's config sanity checker detected a potential misconfiguration

ERROR:  OE-core's config sanity checker detected a potential misconfiguration.
    Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
    Following is the list of potential problems / advisories:

    Error, the PACKAGE_ARCHS variable (all any noarch ${PACKAGE_EXTRA_ARCHS:tune-cortexa55} custom) for DEFAULTTUNE (cortexa55) does not contain TUNE_PKGARCH (${@bb.utils.contains('TUNE_FEATURES', 'aarch64', '${ARMPKGARCH:tune-cortexa55}', '${ARMPKGARCH:tune-cortexa55}', d)}).Toolchain tunings invalid:
Tuning 'cortexa55' has no defined features, and cannot be used.

Multiple syntax changes were resolved but now stucked to this error.

Any help is appreciated.
Thankyou

Hi,
As you know there is kirkstone and dunfell have different override syntax, you said syntax changes were resolved but I don't have much information from your build environment.

Does meta-custom have some machine.conf? or it's just distro/software layer?