Github remote permission denied

Question

I\'m trying to upload my repo on github and go through all the steps upto:

git push -u origin master

at that point it gives me the following er

Answer 1

If you are using MacOS, you can

1. go to KeyChain Access,
2. Search for "GitHub",
3. then when then result "github.com" pops up, change the account or password to your new account, and save.

Then you are all set!