问题：
I just started using git with github.我刚开始在 github 上使用 git。 I followed their instructions and ran into errors on the last step.我按照他们的指示，在最后一步遇到了错误。 I'm checking in an existing directory that isn't currently source-controlled (project about a week old).我正在检查当前不受源代码控制的现有目录（大约一周前的项目）。 Other than that, my use case should be pretty run of the mill.除此之外，我的用例应该是完全正常的。
Here's what's happening:这是发生了什么：
$ git push origin master
error: src refspec master does not match any.
fatal: The remote end hung up unexpectedly
error: failed to push some refs to '[email protected]:{username}/{projectname}.git'
Github's instructions: Github 的说明：
Global setup:
Download and install Git
git config --global user.name "Your Name"
git config --global user.email {username}@gmail.com
Next steps:
mkdir projectname
cd projectname
git init
touch README
git add README
git commit -m 'first commit'
git remote add origin [email protected]:{username}/{projectname}.git
git push origin master
解决方案：
参考一： https://en.stackoom.com/question/3TEN参考二： https://stackoom.com/question/3TEN