executing command : exit status 1. please what does it mean i am trying to upload code on arduino genuino/uno r3.
Show us the rest of the error (you can scroll/resize that black error window)
please i dont understand you
There is usually more to the error message than what is visible.
Are you using the normal IDE (which version?) or the web version. Which operating system?
I've never seen that error with the normal IDE, so might not be able to help further.