Description of defect
NUMAKER_M252KG builds have started to fail in blinky build.
Target(s) affected by this defect ?
NUMAKER_M252KG
Toolchain(s) (name and version) displaying this defect ?
ARMC6, GCC, IAR
What version of Mbed-os are you using (tag or sha) ?
6b89d16
mbed-os-99.99.99
What version(s) of tools are you using. List all that apply (E.g. mbed-cli)
How is this defect reproduced ?
Try building Blinky for the target.