{"record":{"id":"c6e182880cd1a52a","repo":"nikivdev/code","slug":"jj-git-fetch-failed","errorCode":null,"errorMessage":"jj git fetch failed: {}","messagePattern":"jj git fetch failed: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"src/sync.rs","lineNumber":3517,"sourceCode":"                failures.push(format!(\n                    \"origin alias {}: {}\",\n                    upstream_branch_for_fetch, err\n                ));\n            } else {\n                fetched_any = true;\n            }\n        }\n\n        if fetched_any {\n            recorder.record(\"jj\", \"jj git import\");\n            let _ = jj_run_in(repo_root, &[\"--quiet\", \"git\", \"import\"]);\n            print_fetched_remote_commits(repo_root, &tracked_refs, recorder, cmd.compact);\n            // Re-resolve after fetch/import so we can pick up newly discovered upstream refs.\n            if home_branch_sync_target.is_none() {\n                upstream_branch_opt = resolve_upstream_branch_in(repo_root, Some(&current_branch));\n            }\n        } else if !failures.is_empty() {\n            bail!(\"jj git fetch failed: {}\", failures.join(\", \"));\n        }\n    }\n\n    let push_remote_url =\n        git_capture_in(repo_root, &[\"remote\", \"get-url\", &push_remote]).unwrap_or_default();\n    let upstream_url =\n        git_capture_in(repo_root, &[\"remote\", \"get-url\", \"upstream\"]).unwrap_or_default();\n    let is_read_only =\n        has_upstream && normalize_git_url(&push_remote_url) == normalize_git_url(&upstream_url);\n\n    let mut dest_ref: Option<String> = None;\n    if let Some(target) = home_branch_sync_target.as_ref() {\n        dest_ref = Some(format!(\n            \"{}@{}\",\n            target.public_default_branch, target.public_remote\n        ));\n    } else if has_upstream {\n        if let Some(branch) = upstream_branch_opt {","sourceCodeStart":3499,"sourceCodeEnd":3535,"githubUrl":"https://github.com/nikivdev/code/blob/a747e741ae92c09071d0ae946ab48488adcff1ce/src/sync.rs#L3499-L3535","documentation":"Thrown in src/sync.rs when the internal `jj git fetch` invocation fails. The tool collects per-remote fetch failures and, if any remain after the fetch attempt, bails with the joined error messages. This wraps lower-level jj/git fetch errors (network auth, missing remote, refspec problems).","triggerScenarios":"Executing the sync command when `jj git fetch` returns failures for one or more remotes — the `else if !failures.is_empty()` branch. Any non-empty `failures` list (e.g., SSH auth rejected, remote URL unreachable, unknown remote name) triggers it.","commonSituations":"SSH key not loaded in agent or wrong passphrase; remote renamed/removed; no network/VPN; jj repo not colocated with git so the git remote isn't registered with jj; credentials expired.","solutions":["Read the joined message after the colon — it names the failing remote/reason; fix that specific issue (e.g., `ssh -T git@host` to test auth).","Verify the remote exists: `git remote -v` / `jj git remote list`, and re-add if missing (`jj git remote add origin <url>`).","Retry when network/VPN is up; fetch is safe to re-run.","Refresh credentials: start ssh-agent with the key, or update HTTPS token in your credential helper."],"exampleFix":"// before\njj git fetch origin\n// error: authentication failed for 'https://gitlab.com/team/repo.git'\n\n// after (refresh credentials then re-run sync)\ngit credential reject <<EOF\nprotocol=https\nhost=gitlab.com\nEOF\nf sync","handlingStrategy":"retry","validationCode":"git ls-remote origin HEAD >/dev/null 2>&1 || { echo \"origin unreachable or auth failed\"; exit 1; }","typeGuard":null,"tryCatchPattern":"match sync::run(&repo_root, &cmd) {\n    Err(e) if e.to_string().starts_with(\"jj git fetch failed:\") => {\n        eprintln!(\"Fetch failed: {} — check auth/network, then retry\", e);\n        // retry with backoff\n    }\n    other => other,\n}","preventionTips":["Keep your SSH key loaded in ssh-agent (ssh-add) before long work sessions.","Periodically refresh HTTPS tokens / credential-helper entries before they expire.","Verify remotes exist with `jj git remote list` / `git remote -v` after team repo migrations.","Check network/VPN connectivity before running sync in CI or scripts."],"tags":["git","network","fetch","authentication"],"backgroundTag":"git-fetch-failed","analyzedSha":"a747e741ae92c09071d0ae946ab48488adcff1ce","analyzedAt":"2026-09-01T22:43:55.719Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}