while pulling from sourcetree I am getting following error. Please help resolve this
git -c diff.mnemonicprefix=false -c core.quotepath=false fetch origin
From ssh://bitbucket.org/cricut/cricut-net
dfff6f1..ec58187 xxxx/working_copy -> origin/xxxx/working_copy
error: cannot lock ref 'refs/remotes/origin/xxxx/working_copy': is at a12ea0eb1c2784e9821dd2bbdebe924e64ec80b6 but expected 6ce5f6a0c88531056be1b57dc043a2f537a0c06d
! 6ce5f6a..ec58187 xxxxx/working_copy -> origin/xxxxx/working_copy (unable to update local ref)
Completed with errors, see above.