git revert not allowed due to a merge but no -m option was given

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I am trying to revert to a certain ‘hash’ number in git, by using the ‘revert’ command.

I am using the following command:

git revert c14609d74eec3ccebafc73fa875ec58445471765

But, I am getting the following returned:

error: Commit c14609d74eec3ccebafc73fa875ec58445471765 is a merge but no -m option was given.
fatal: revert failed

What is happening & what should be done to resolve this?


I want to revert back to this certain commit (c14609d74eec3ccebafc73fa875ec58445471765) that I see when running git log.


Solution

You are trying to revert a merge commit, and git doesn’t know which parent to revert to. The -m allows us to choose which parent to choose. See the merge commit and note down which parent you want to go to. The parent information can be seen in git log, for example:

commit d02ee0f2179def10277f30c71c5d6f59ded3c595

Merge: dd3a24c 2462a52

and run:

git revert <hash> -m 1

where 1 indicates parent number 1 (dd3a24c).

If you are trying to revert to that commit, do:

git reset --hard <hash>

Understand the difference between git revert and git reset from the docs and decide which one you want. git revert is the safer option, but doesn’t really do what you want. It just reverts the changes of a (set of) commit. git reset makes you move to a particular commit in history, and will rewrite your history.

Source: StackOverflow.com

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