Cannot merge in Gerrit

Question

Whenever I sent a review to Gerrit and if the review is pending for some time, I am getting cannot merge message in Gerrit.

I understood its coming because

Answer 1

Try rebase button, which can solve most cannot-merge issues. If it can find the proper commit to rebase onto by itself, it's okay. If it cannot, find the last commit of the target branch and fill in the commit blank. Sometimes you should first submit the commit, on which the cannot-merge one has dependency. If it cannot work anyhow, just abandon it and make the commit based on the latest commit.