I have been able to integrate bitbucket with gitlab following these tutorials:
I have successfully connected my gitlab account with my bitbucket account in:
User Settings>Account>Connected Accounts clicked bitbucket and it connected automatically.
But when I try to import a project from bitbucket I still get the following error:
To enable importing projects from Bitbucket, as administrator you need to configure OAuth integration.
Any ideas of how I can get this working?