Fixed: You asked to pull from the remote 'origin', but did not specify a branch. Because this is not the default configured remote for your current branch, you must specify a branch on the command line.

Encounter:

You asked to pull from the remote 'origin', but did not specify a branch. Because this is not the default configured remote for your current branch, you must specify a branch on the command line.

You have to tell git which branch you want to pull from the "origin" remote repos.
Change to

git pull origin master

Or another branch.