Virtual/qemu build for simu instlegato

Hi,

I want to build and run ‘simu instlegato’ on legato-19.11.2. Here are errors for virt-arm and virt-x86:

legato-19.11.2$ make virt-arm
make: Entering directory ‘/home/costa/modular-16/sierra/legato-19.11.2’
Building Legato for target ‘virt-arm’
Makefile:127: build/virt-arm/.config.mk: No such file or directory
Makefile:246: *** Unable to find toolchain for target ‘virt-arm’. Stop.
make: Leaving directory ‘/home/costa/modular-16/sierra/legato-19.11.2’

legato-19.11.2$ make virt-x86
make: Entering directory ‘/home/costa/modular-16/sierra/legato-19.11.2’
Building Legato for target ‘virt-x86’
Makefile:127: build/virt-x86/.config.mk: No such file or directory
Makefile:246: *** Unable to find toolchain for target ‘virt-x86’. Stop.
make: Leaving directory ‘/home/costa/modular-16/sierra/legato-19.11.2’

Please assist. How to use correctly simu?