Build/Install mangOH issue what target need to be set n where

make[2]: Entering directory ‘/root/legato_framework/legato’
Makefile.framework:21: *** TARGET is not set. Stop.
make[2]: Leaving directory ‘/root/legato_framework/legato’
Makefile:244: recipe for target ‘framework_wp750x’ failed
make[1]: *** [framework_wp750x] Error 2
make[1]: Leaving directory ‘/root/legato_framework/legato’
Makefile:34: recipe for target ‘legato_wp750x’ failed
make: *** [legato_wp750x] Error 2

please share the command that you issued

command used :- make red_wp750x

did you install your toolchain or is your sysroot variable set?

I have install tool chain