Any one tried to build new board from efabless kicad files from https://github.com/efabless/caravel_board/tree/main/hardware/caravel_Nucleo? I tried these step, but kicad say's file format is not correct. 1. Rename .kicad_ files* mv caravel_Nucleo.kicad_pro caravel_Nucleo.pro mv caravel_Nucleo.kicad_prl caravel_Nucleo.prl mv caravel_Nucleo.kicad_pcb caravel_Nucleo.pcb mv caravel_Nucleo.kicad_sch caravel_Nucleo.sch 2. Open the caravel_Nucleo.pro in KiCad I see Kicad is say's files are format is not correct ? Is there is any specific kicad version need to used ?

These are kicad 6 and above project files. Your version seems to be kicad 4.

ok, In Windows version I am able to open it. Where to get the global foot print libaray ? Is it Kicad default libraries?