For My case i did 3 steps to achieve the sucessful build.
revert all the local changes if any (or just keep a copy of it in case you need it for future use)
Do a git clean up, do a pull and check the logs for error
GO to the git bash option and the error i was getting in log in above stem (i my case ) as "error: cannot lock ref and the branch details", so in the git bash i ran the following command git update-ref -d 'Branch_name'
For example if the error was something like **
**error: cannot lock ref 'refs/remotes/origin/EXMPLEISSUE/EXAMPLE-1011_DEMO_web_interface_DOES_NOT_GET_GIT_UPDATE':
Then i ran following command git update-ref -d 'refs/remotes/origin/EXMPLEISSUE/EXAMPLE-1011_DEMO_web_interface_DOES_NOT_GET_GIT_UPDATE'
We have to ensure all the error in logs to be solved similarly before getting a successful pull by doing git update-ref -d 'Branch_name' and finally i can get the take the successful pull from git.