Edit your config for that project, setting the correct email. From the root of that repository, git config user.email <heroku email>

I have the exact same problem.

This is not the answer, but a temp solution is to add your "standard" heroku email as a collaborator to the app you can't access.

I solved this by using the heroku-accounts plugin

see here for instructions

http://martyhaught.com/articles/2010/12/14/managing-multiple-heroku-accounts/

You've got to be accepted as a collaborator on the project you don't own.

It works like this (using git) :

1. The owner of the project goes to heroku's console for the project
2. The owner adds the email address of the collaborator (the one that was used to register the collaborator's)
3. The collaborator sets up his public security key in his account (if he didn't already)
4. The collaborator adds and sets up the other project as another remote

And that should be all folks ; you just have to push on the other remote when deploying on the other app.

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.

I'd add a couple of things re the heroku-accounts plugin... this example assumes your pre-existing heroku account will be heroku.work and you are adding a new account heroku.personal.

It also describes how to move an app from one to the other, for example, if you have hit your 25-app max and are creating a new account and want to move some of your side projects and experimental apps out of your main account.

1. You probably need to use the plugin to create BOTH your old and your new accounts, eg, if you had one to start with you can't just add a new heroku.personal, you need to create heroku.work to replace your old one
2. You'll need to reassign your old apps to your heroku.work
3. if you are moving an app, don't assign the app to heroku.personal (using heroku accounts:set personal) until after you transfer the app using the heroku sharing commmand as described https://devcenter.heroku.com/articles/transferring-apps

So the steps you probably need are:

1. Install the heroku-account plugin
2. Go to heroku.com and create your new acount (if you don't have a second acount already)
3. run heroku accounts:add work --auto to create a new heroku.work account to replace your old default account (so use the same credentials you've been using all along). You ALSO need to upload your new key to heroku: heroku keys:add ~/.ssh/identity.heroku.work.pub
4. run heroku accounts:add personal --auto to create a new heroku.personal account (eg use your new credentials for your new heroku account). You ALSO need to upload your new key to heroku: heroku keys:add ~/.ssh/identity.heroku.personal.pub
5. For each app, cd to the project root then run heroku accounts:set work (all that does it setup git to use your heroku.work, which is (unin this example) the same heroku account you've been using all along, only now it's called heroku.work.
6. If you want to move an app from heroku.work to heroku.personal, (a) add the new heroku account as a collaborator with heroku sharing:add <new owner email> (b) in your local directory, switch the app to heroku.personal using heroku accounts:set personal (c) transfer** the app from the old account to the new account using heroku sharing:transfer <new owner email> then (d) remove the old email address collaborator (if you want to) using heroku sharing:remove <old owner email>

** Note the heroku link I provided says there are special requirements to move an app with any paid resources. Generally, remove the paid resoures, then add them back later, or have support do it.

I started using the heroku-accounts plugin but then realized my buddy could just make me a collaborator on his heroku account and that was all that was needed.

i am using win7

1) create another user account in win7 and log into it

2) open git bash and log into your new heroku account

3) create and upload new RSA key (instruction here : https://devcenter.heroku.com/articles/keys)

4) then do what ever you want (create new app, push file to it .....)

5) every time you need to work with your original heroku account just log into your original win user account and work with heroku

To get this to work for me with both Git and the Heroku console, I had to add create the ssh config as instructed by bantic, but I also had to create two remotes to my .git config:

[remote "origin"]
url = git@heroku.work:pacific-rock-4904.git
fetch = +refs/heads/*:refs/remotes/heroku/*
[remote "heroku"]
url = git@heroku.com:pacific-rock-4904.git
fetch = +refs/heads/*:refs/remotes/heroku/*

create new public/private key for new email as follows

1) ssh-keygen -t rsa -C "mvjohn@klairvoynat.com"

2) provide new file name in which to save the key (/home/.ssh/seckey)

3) Then add your new key to the ssh-agent:- ssh-add ~/.ssh/seckey

4) Then add your new key to heroku :- heroku keys:add ~/.ssh/seckey

5) add SSH Config File as ~/.ssh/config and content as follows

Host heroku.com Hostname heroku.com Port 22 IdentitiesOnly yes IdentityFile ~/.ssh/seckey User mvjohn@klairvoynat.com

Host heroku.com Hostname heroku.com Port 22 IdentitiesOnly yes IdentityFile ~/.ssh/id_rsa User mvjohn@hotmail.com

6) clone the code using either

a) git clone git@heroku.com:your-application.git b) heroku git:clone -a your-application

This has been bugging me for a while, and I never found a solution that I liked. Finally found one.

(OS X specific answer.)

You can just create new users. Go to System Preferences -> Users & Groups -> Add user or group button. You can create a few users for different heroku accounts, I just named mine user1, user2, etc.

Then go to System Preferences -> Sharing -> Remote Login -> Allow access for: All Users

At this point, you can go to a terminal and do the following:

$ ssh user1@localhost

Then you can do things like this:

$ heroku login
$ heroku keys:add

The Heroku plugin https://github.com/ddollar/heroku-accounts has been deprecated. Heroku now maintains its own at https://github.com/heroku/heroku-accounts. Unfortunately it doesn't seem to store project-by-project which account it should be using so you need to run

$ heroku accounts:set account_name

each time you want to use the Heroku command-line tool.

Quick solution for people with access to the bash shell: make a local bin directory (it's already there in Rails applications) and create bin/heroku there. Contents:

#!/bin/bash
/usr/bin/heroku accounts:set account_name
/usr/bin/heroku $*

(replace "project_name" as appropriate) Then run

$ chmod +x bin/heroku

You can then run

$ bin/heroku run console

and it will automatically use the right Heroku account for you. Better still is to add ./bin to your path so you're back to just running:

$ heroku run console

I used nano .git/config then replaced value of url of remote "heroku" with heroku.com > apps > settings > Reveal config vars > Heroku Git URL

Install Heroku-accounts plugin and configure it!!

Installation

 heroku plugins:install heroku-accounts

Usage

To add accounts:

$ heroku accounts:add personal
Enter your Heroku credentials.
Email: david@heroku.com
Password: ******

To list accounts:

$ heroku accounts
* personal
work

To switch to a different account:

heroku accounts:set personal

To find current account:

$ heroku accounts:current
personal

To remove an account:

$ heroku accounts:remove personal
Account removed: personal

set to your working heroku account and push the changes.