Hello @Wei Cai ,
Welcome to Atlassian Community!
It seems like the git command is facing some issues to execute the underlying OpenSSH binary used to authenticate with Bitbucket.
I see you are using Windows, so I would suggest downloading Git for Windows as it brings a bash emulation used to run Git from the command line. It's basically an emulation of the UNIX bash system for your git commands.
Thank you, @Wei Cai !
Patrik S
It looks like you're new here. Sign in or register to get started.