When using git, I have met many kinds of RPC failed.
e.g.:
error: RPC failed; result=56, HTTP code = 0
and When I google "git rpc failed", I can get many results especially from stackoverflow:
error: RPC failed; result=22, HTTP code = 413
error: RPC failed; result=22, HTTP code = 400
error: RPC failed; result=22, HTTP code = 411
...
But, what's the meaning of RPC failed, how can we troubleshooting them, and where can we find a list about what's the meaning of those error codes?