Px4 command cannot find its own file?

PX4 Autopilot
1

After following the instruction to the letter, and much google searching.
I was able to make/compile the px4 code from my development pc and uploade it onto a raspberry pi 4b.

However my last stumbling block is not being able to execute the px4 program on the pi.

gus@raspberrypi:~/px4 $ sudo ./bin/px4 -s pilotpi_mc.config
-bash: ./bin/px4: No such file or directory

Does anyone have any good advice or suggestions, it would be appreciated.
I have already checked permissions on the px4 folder, btw.

2

So figured out why ./bin/px4 -s pilot_mc.config wouldn’t compile. PX4 seems to work only for the 32-bit version of raspberry pi OS.