{"record":{"id":"7a461f02b3bdd0af","repo":"nikivdev/code","slug":"install-failed-after-trying-auto-backends","errorCode":null,"errorMessage":"install failed after trying auto backends:\n- {}","messagePattern":"install failed after trying auto backends:\n- (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"src/install.rs","lineNumber":107,"sourceCode":"            }\n        }\n    } else if let Some(name) = opts\n        .name\n        .as_deref()\n        .map(str::trim)\n        .filter(|n| !n.is_empty())\n    {\n        eprintln!(\n            \"INFO skipping parm fallback for '{}' (no owner/repo mapping; set FLOW_INSTALL_OWNER or pass owner/repo)\",\n            name\n        );\n    }\n\n    match install_with_flox(opts) {\n        Ok(()) => Ok(()),\n        Err(err) => {\n            errors.push(format!(\"flox: {err}\"));\n            bail!(\n                \"install failed after trying auto backends:\\n- {}\",\n                errors.join(\"\\n- \")\n            );\n        }\n    }\n}\n\nfn is_existing_destination_error(err: &anyhow::Error) -> bool {\n    err.to_string().contains(\"already exists\")\n}\n\nfn looks_like_remote_external_cli_id(name: &str) -> bool {\n    name.starts_with(\"cli_\") || name.starts_with(\"cli:\")\n}\n\npub fn run_index(opts: InstallIndexOpts) -> Result<()> {\n    let flox_bin = resolve_flox_bin()?;\n    let Some(config) = typesense_config_with_overrides(&opts) else {","sourceCodeStart":89,"sourceCodeEnd":125,"githubUrl":"https://github.com/nikivdev/code/blob/a747e741ae92c09071d0ae946ab48488adcff1ce/src/install.rs#L89-L125","documentation":"install_with_auto tries auto backends in sequence, collecting each backend's error. If the final backend (flox) also fails, it bails with this aggregated message listing every backend failure joined by newlines. The lines after '- ' name each backend and its specific error.","triggerScenarios":"Running `f install` in auto mode where every automatic backend fails — the message enumerates all attempted backends and why each failed.","commonSituations":"flox not installed or not on PATH; network unavailable for backend downloads; package name not resolvable by any backend.","solutions":["Read each '- backend: ...' line in the error; fix the root cause of the last (flox) failure first.","Verify the flox binary is installed and on PATH (`which flox`; check resolve_flox_bin).","Check network connectivity if a backend reported a fetch/download error.","Install explicitly via a working backend (e.g. `f install <path-to-cli>`) to bypass auto detection."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":"// Pre-flight the final auto backend before attempting installs\nif which::which(\"flox\").is_err() {\n    eprintln!(\"flox missing on PATH; auto install will fail\");\n}\n// and verify the name is non-empty\nif name.trim().is_empty() { eprintln!(\"package name required\"); }","typeGuard":null,"tryCatchPattern":"if let Err(e) = f_install_auto(name) {\n    let msg = e.to_string();\n    if msg.starts_with(\"install failed after trying auto backends\") {\n        // iterate the '- backend: reason' lines and report each\n        for line in msg.lines().skip(1) {\n            eprintln!(\"backend failure: {}\", line.trim_start_matches(\"- \"));\n        }\n    } else {\n        return Err(e.into());\n    }\n}","preventionTips":["Ensure flox is installed and on PATH before relying on auto mode","Use explicit backend installs (`f install <path-to-cli>`) in CI to avoid fallback surprises","Check network availability when backends fetch packages"],"tags":["install","fallback","aggregated-errors"],"backgroundTag":"all-backends-failed","analyzedSha":"a747e741ae92c09071d0ae946ab48488adcff1ce","analyzedAt":"2026-09-01T22:43:55.719Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}