我在追踪Ruby .铁路 struct .我运行命令"git push heroku master",它会抛出这个错误.
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.有什么解决办法吗?