我正在跟随Ruby on Rails教程,运行命令"git push heroku master"时出现了以下错误。
Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
我在我的 Rails 应用程序 "/Users/lexi87/rails_projects/first_app" 中。有什么解决方法吗?