=== Building firmware ===
Project root: /test/project

Compiling with Keil...
*** Using Compiler 'V5.06 update 7 (build 960)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
Build target 'UART'
compiling main.c...
main.c(1): error:  #5: cannot open source input file "nonexistent_header.h": No such file or directory
  #include "nonexistent_header.h"
main.c: 0 warnings, 1 error
"..\OBJ\Template.axf" - 1 Error(s), 0 Warning(s).
Target not created.
Build Time Elapsed:  00:00:01
