No such file or directory : `i386-elf-gcc` & `i386-elf-ar`

[SalmaAlassal]

When I try to run, I receive the following error :

*  Executing task: make qemu 

make: i386-elf-gcc: No such file or directory
+ ar obj/lib/libfos.a
make: i386-elf-ar: No such file or directory
make: *** [lib/Makefrag:32: obj/lib/libfos.a] Error 127

 *  The terminal process "/bin/sh '-c', 'make qemu'" failed to launch (exit code: 2). 
 *  Terminal will be reused by tasks, press any key to close it. 

[YoussefRaafatNasry]

Is your environment set up properly? You can verify it by running i386-elf-gcc from your terminal.