connot gin-config @ git+https://github.com/google/gin-config@243ba87b3fcfeb2efb4a920b8f19679b61a6f0dc

[Hansen7777777]

When I use pip pip install -r requirements.txt，I found I can not link to https://github.com/google/gin-config@243ba87b3fcfeb2efb4a920b8f19679b61a6f0dc. And the error is: fatal: Couldn't find remote ref 243ba87b3fcfeb2efb4a920b8f19679b61a6f0dc, so how can i solve this,thanks.