Unknown command fish_git_prompt

I don't know why this appears but I cannot get rid of this message in the terminal.

Please help me to solve this issue.

Please search all errors you have received in the forum search engine before opening a help request.

Pictures or videos instead of textual outputs on technical help requests will result in your thread either being locked or dumped in the refuse bin.

Edit your original post to include proper textual error logs not pictures and your thread will be returned to the main forum or reopened.

Unfortunately, posting pictures or videos has become so common on technical help threads that we've had to adopt a much harder line on this to put an end to this continual bad habit of new users.

This is not Facebook or YouTube, pictures and videos are unacceptable on technical help requests threads.

Please see: