How to get rid of below error to get the commit history? sometimes it works not all the time
git log '--pretty=format:%ad - %s [%an]' v1.0.11...b1.0.12
fatal: ambiguous argument 'v1.0.11...b1.0.12': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
Any help would be appreciated!