i have to switch heroku account from one to another .i tried using heroku login.but when i try to deploy my app using command
git push heroku master
but i am getting error
Agent admitted failure to sign using the key.
! Your account ritesh@iritesh.com does not have access to young-plains-9347.
!
! SSH Key Fingerprint: 3f:bf:62:23:04:b3:7a:ff:a8:15:59:43:37:c0:4d:6e
fatal: The remote end hung up unexpectedly
where ritesh@iritesh.com is my previous account .how to get rid of this error ??please guideline .