Error map

merge commit revert error: commit x is a merge but no -m option was given.

Git · layer 7, Build & delivery

Open the full error page →

Centre: this error. First ring: errors it is linked with (9). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.

2 · Network 6 · Platform & cloud 7 · Build & delivery
merge commit revert — error: commit x is a merge but no -m option was given. (Git)merge commi…submodule url — fatal: No url found for submodule path 'x' in .gitmodules (Git)submodule urlcannot lock ref — error: cannot lock ref 'refs/remotes/origin/x': is at … but expected … / unable to update local ref (Git)cannot lock refcannot rebase — error: cannot pull with rebase: You have unstaged changes. Please commit or stash them. (Git)cannot rebasebranch exists — fatal: a branch named 'x' already exists (Git)branch existsnot a valid object name — fatal: Not a valid object name: 'main'. (Git)not a valid object …detached HEAD — You are in 'detached HEAD' state. (Git)detached HEADAuthentication failed — fatal: Authentication failed for 'https://github.com/x/y.git/' (Git)Authentication fail…unknown revision HEAD — fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree. (Git)unknown revision HE…LFS smudge error — Error downloading object: x: Smudge error / This repository is over its data quota (Git)LFS smudge errorCould not resolve host — fatal: unable to access 'https://github.com/…': Could not resolve host: github.com (Git)Could not resolve h…untracked files overwritten — error: The following untracked working tree files would be overwritten by checkout/merge (Git)untracked files ove…remote origin exists — error: remote origin already exists. (Git)remote origin existsRepository not found — remote: Repository not found. fatal: repository 'https://github.com/x/y.git/' not found (Git)Repository not foundchanges overwritten — error: Your local changes to the following files would be overwritten by merge (Git)changes overwrittenrebase in progress — fatal: It seems that there is already a rebase-merge directory, and I wonder if you are in the middle of another rebase. (Git)rebase in progressoverwritten by checkout — error: Your local changes to the following files would be overwritten by checkout (Git)overwritten by chec…non-fast-forward — Git: ! [rejected] … (fetch first) — error: failed to push some refs (Git)non-fast-forwardpathspec did not match — error: pathspec 'x' did not match any file(s) known to git (Git)pathspec did not ma…src refspec — error: src refspec main does not match any (Git)src refspeccouldn't find remote ref — fatal: couldn't find remote ref main (Git)couldn't find remot…no upstream branch — fatal: The current branch x has no upstream branch. (Git)no upstream branchpublickey — Git: Permission denied (publickey). fatal: Could not read from remote repository. (Git)publickeyAADSTS700016 — Azure AD (Entra ID): AADSTS700016 Application not found in the directory (Azure)AADSTS700016401 — HTTP 401 Unauthorized (HTTP)401not possible to fast-forward — fatal: Not possible to fast-forward, aborting. (Git)not possible to fas…index.lock exists — fatal: Unable to create '.git/index.lock': File exists. Another git process seems to be running in this repository (Git)index.lock existsGH001 large files — remote: error: GH001: Large files detected. File x is 120 MB; this exceeds GitHub's file size limit of 100.00 MB (Git)GH001 large files

Directly related (9)

submodule urlGit

fatal: No url found for submodule path 'x' in .gitmodules

A submodule entry exists in the index but its URL is missing from .gitmodules.

cannot lock refGit

error: cannot lock ref 'refs/remotes/origin/x': is at … but expected … / unable to update local ref

Git couldn’t update a reference — stale remote-tracking refs, case-only branch name clashes, or a leftover lock file.

cannot rebaseGit

error: cannot pull with rebase: You have unstaged changes. Please commit or stash them.

A rebase (or pull --rebase) needs a clean working tree.

branch existsGit

fatal: a branch named 'x' already exists

You tried to create a branch whose name is already taken locally.

not a valid object nameGit

fatal: Not a valid object name: 'main'.

The branch or commit doesn’t exist yet — typically in a new repo before the first commit.

detached HEADGit

You are in 'detached HEAD' state.

HEAD points at a commit instead of a branch, so new commits won’t belong to any branch.

Authentication failedGit

fatal: Authentication failed for 'https://github.com/x/y.git/'

HTTPS authentication to the Git host failed — wrong or expired credentials, or a password used where a token is required.

unknown revision HEADGit

fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree.

The repository has no commits yet (or the ref doesn’t exist), so HEAD can’t be resolved.

LFS smudge errorGit

Error downloading object: x: Smudge error / This repository is over its data quota

Git LFS couldn’t download a large file — missing LFS install, auth problems, or the LFS bandwidth/storage quota is exhausted.

Two steps away (18)

Could not resolve hostGit

fatal: unable to access 'https://github.com/…': Could not resolve host: github.com

DNS lookup for the Git host failed from this machine.

untracked files overwrittenGit

error: The following untracked working tree files would be overwritten by checkout/merge

Untracked local files have the same paths as files coming from the other branch.

remote origin existsGit

error: remote origin already exists.

A remote named origin is already configured.

Repository not foundGit

remote: Repository not found. fatal: repository 'https://github.com/x/y.git/' not found

GitHub/GitLab says the repository doesn’t exist — or you lack access to a private repo.

changes overwrittenGit

error: Your local changes to the following files would be overwritten by merge

git pull/merge would modify files you’ve changed but not committed.

rebase in progressGit

fatal: It seems that there is already a rebase-merge directory, and I wonder if you are in the middle of another rebase.

A previous rebase is still in progress (or was interrupted).

overwritten by checkoutGit

error: Your local changes to the following files would be overwritten by checkout

Switching branches would discard uncommitted changes in files that differ between branches.

non-fast-forwardGit

Git: ! [rejected] … (fetch first) — error: failed to push some refs

The remote branch has commits you don’t have locally, so Git refuses to overwrite them. Pull (merge or rebase) first, then push.

pathspec did not matchGit

error: pathspec 'x' did not match any file(s) known to git

Git couldn’t find the file or branch name you referenced.

src refspecGit

error: src refspec main does not match any

You pushed a branch name that doesn’t exist locally — usually no commits yet, or the branch is called master not main.

couldn't find remote refGit

fatal: couldn't find remote ref main

The branch you tried to pull/fetch doesn’t exist on the remote.

no upstream branchGit

fatal: The current branch x has no upstream branch.

The local branch isn’t linked to a remote branch yet, so a bare git push doesn’t know where to go.

publickeyGit

Git: Permission denied (publickey). fatal: Could not read from remote repository.

SSH authentication to GitHub/GitLab/Bitbucket failed — no key, wrong key, or the key isn’t added to your account.

AADSTS700016Azure

Azure AD (Entra ID): AADSTS700016 Application not found in the directory

The client ID in your sign-in request doesn’t exist in the tenant you’re authenticating against.

401HTTP

HTTP 401 Unauthorized

The request has no valid authentication credentials — you need to log in or send a valid token.

not possible to fast-forwardGit

fatal: Not possible to fast-forward, aborting.

pull is configured to fast-forward only, but your branch and the remote have diverged.

index.lock existsGit

fatal: Unable to create '.git/index.lock': File exists. Another git process seems to be running in this repository

A lock file from another (or crashed) Git process blocks this command.

GH001 large filesGit

remote: error: GH001: Large files detected. File x is 120 MB; this exceeds GitHub's file size limit of 100.00 MB

GitHub rejected the push because a file over 100 MB is in your commits — even if you deleted it later.

Map another error

Popular: 4035004000xC000007BTypeErrorCritical error404NullPointerException