Urgent help needed about arduino leonardo

[hc-sr04]

i use the web editor on a Chromebook and made a mouse thing and now i cant install anything. PLZZZ help me

[in0]

Hi @hc-sr04. Please provide a detailed description of what you mean by "cant install anything". If you are getting any error or warning messages, post the full and exact text of them.

[6v6gt]

Maybe this helps:

Stuck on an endless loop of keystrokes, did I screw up my Arduino Micro?

So all I wanted to do is that whenever I press an external button, I get the "W" keystroke on the computer. Simple, right? Problem is that I seemed to have screwed up the code and now I can't even revert the arduino to its default formatted status. Whenever I plug the arduino to the PC, it's as though "W" is constantly pressed. When I try to upload a generic "empty" code that does nothing, I get "An error occurred while uploading the sketch", despite the fact the verify process goes well. I also…