Open a fresh iTerm2 window first
A fresh window gives iTerm2 a clean start. Then run the two checks.
Check Node
Type only the lines marked TYPE THIS. Do not type lines marked MAC REPLIES or NOTE.
TYPE THIS
node -vMAC REPLIES
v followed by version numbersNOTE
Your number may be different. That is normal.Check npm
Type only the lines marked TYPE THIS. Do not type lines marked MAC REPLIES or NOTE.
TYPE THIS
npm -vMAC REPLIES
version numbersNOTE
If both commands show version numbers, the install worked.If the Mac says command not found
Open a new iTerm2 window and try again. If it still fails, check that you ran every official line.