@kdaud try to run these commands and share your output after [cloning](git clone https://github.com/HerbertYiga/openmrs-distro-referenceapplication.git (use your forked repo)) and [adding upstream](git remote add upstream https://github.com/openmrs/openmrs-distro-referenceapplication.git)
git clean -df
git fetch --all
git pull --rebase upstream master
git branch --all
git fetch upstream qa:qa
git checkout qa