When tried to generate image got below error.
Command used to generate image:  bitbake -k wac-core-image

In dunfell we had no such configuration for TUNE_ARCH in /conf/machine but in scarthgap below error was thrown.
Is it good practice to disable the checker?

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:

    TUNE_ARCH is unset. Please ensure your MACHINE configuration includes a valid tune configuration file which will set this correctly.
Error, the PACKAGE_ARCHS variable (all any noarch ${PACKAGE_EXTRA_ARCHS:tune-${DEFAULTTUNE}} wacin) for DEFAULTTUNE (None) does not contain TUNE_PKGARCH ().Toolchain tunings invalid:
No tuning found for default multilib.

Ganesh