I am getting the following error and seem to not be able to find the answer. I am using the BitBucket free account.
HI @jnmwarren
Please have a look at the previous answers, hope it helps.
https://community.atlassian.com/t5/Sourcetree-questions/Sourcetree-setup-unable-to-login-to-Bitbucket-server/qaq-p/781149
https://community.atlassian.com/t5/Bitbucket-questions/Cannot-login-with-Bitbucket-in-SourceTree-after-linking-with/qaq-p/145231
Thanks. Once I logged in as a Atlassian user I had no issues. This should be part of the instructions on how to use Bitbucket with Sourcetree.