How to Resolve "error: failed to push some refs to" on GitHub
Your git push gets rejected with "failed to push some refs" instead of updating the remote branch. This is Git protecting the remote from a non-fast-forward...
Category
Git
Resolving merge conflicts, addressing branch issues, and using commands to undo errors in the repository history.
How to Fix "fatal: pathspec did not match any file(s) known to git"
You run a Git command targeting a file or branch and get a "pathspec" error instead of the expected result. This means Git looked for something matching the...
How to Undo the Last Commit Without Losing Changes in Git
You committed too early — maybe you forgot a file, wrote the wrong message, or want to split the commit into smaller pieces. You need to undo the commit itself...
How to Fix "Your Local Changes to the Following Files Would Be Overwritten by Merge"
Git refuses to merge or pull because you have uncommitted local edits that conflict with incoming changes. This is a safety check — Git won't silently discard...
How to Resolve Merge Conflicts in Binary Files in Git
Git flags a conflict on a binary file — an image, a compiled asset, a PDF, a SQLite database — and instead of showing readable conflict markers, it just tells...
How to Fix "fatal: remote origin already exists" When Adding Remote
You try to connect your local repo to a GitHub remote and Git tells you the remote already exists instead of adding it. This means a remote named origin is...
How to Remove Sensitive Data From Git Commit History Completely
You committed an API key, password, or .env file and pushed it — deleting it in a new commit isn't enough, because the secret is still sitting in every earlier...
How to Fix "Git Detached HEAD State" and Save Local Changes
Git warns you that you're in "detached HEAD" state after checking out a commit, tag, or remote branch directly instead of a local branch. Commits made here can...
How to Resolve "RPC Failed; curl 56 OpenSSL SSL_read: Connection Was Reset" in Git
A git clone or git push dies partway through with a low-level SSL/curl error instead of finishing. This is a transport-layer failure — the connection to the...