You need to ensure that you are using the correct ssh key.
The way to do this (and the way the heroku accounts plugin prompts you) is to add a section to your ssh config file in ~/.ssh/config. For instance, for my work heroku account I have this in my ssh config:
Host heroku.work
HostName heroku.com
IdentityFile ~/.ssh/id_heroku_work_rsa
IdentitiesOnly yes
Now, and this is crucial, you need to make sure that your git remote is set up to use that same named host. In this case it is heroku.work. Normally it would be heroku.com if you were using heroku with only a single account.
So you'll need to edit the git remote (you can do this in the .git/config
file of your repo on your machine). Change the file to look like:
[remote "heroku"]
url = git@heroku.work:<appname>.git
Note the heroku.work, not heroku.com, and replace <appname> with the name of your app (aka your repo name) on heroku.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…