{"record":{"id":"ab9e65906e212f98","repo":"Zackriya-Solutions/meetily","slug":"failed-to-create-file","errorCode":null,"errorMessage":"Failed to create file {}: {}","messagePattern":"Failed to create file (.+?): (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs","lineNumber":818,"sourceCode":"                }\n            } else {\n                // Other errors\n                let mut active = self.active_downloads.write().await;\n                active.remove(model_name);\n                return Err(anyhow!(\"Download failed for {} with status: {}\", filename, response.status()));\n            };\n\n            // Open file for writing (append if resuming, create new if not)\n            let file = if resuming {\n                fs::OpenOptions::new()\n                    .append(true)\n                    .open(&file_path)\n                    .await\n                    .map_err(|e| anyhow!(\"Failed to open file for resume {}: {}\", filename, e))?\n            } else {\n                fs::File::create(&file_path)\n                    .await\n                    .map_err(|e| anyhow!(\"Failed to create file {}: {}\", filename, e))?\n            };\n\n            // Use buffered writer for better I/O performance (8MB buffer)\n            let mut writer = BufWriter::with_capacity(8 * 1024 * 1024, file);\n\n            // Stream download\n            use futures_util::StreamExt;\n            let mut stream = response.bytes_stream();\n            let mut file_downloaded = if resuming { existing_size } else { 0u64 };\n\n            loop {\n                // Check for cancellation before processing chunk\n                {\n                    let cancel_flag = self.cancel_download_flag.read().await;\n                    if cancel_flag.as_ref() == Some(&model_name.to_string()) {\n                        log::info!(\"Download cancelled for {}\", model_name);\n                        // Flush and keep partial file for resume on next attempt\n                        let _ = writer.flush().await;","sourceCodeStart":800,"sourceCodeEnd":836,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/0281737d87d26352fb0adc78c8c0975f691b23d1/frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs#L800-L836","documentation":"Thrown when the Parakeet engine cannot create the destination file for a fresh model download: tokio's fs::File::create returned an io::Error before any bytes were written. The first placeholder is the target filename, the second is the underlying OS error. It is always a filesystem problem (path, permissions, disk), never a network one.","triggerScenarios":"Starting a parakeet model download with no existing partial file while the models directory does not exist, is read-only, or is not writable by the process; the target volume is full; or antivirus/another process locks the new file at creation time.","commonSituations":"App data directory never created with create_dir_all before the first download; running in dev mode from a read-only checkout; disk exhausted by a previous multi-GB model; Windows Defender or a sync client holding a lock on the target path.","solutions":["Create the parent directory first: tokio::fs::create_dir_all on file_path.parent() before File::create","Verify the process has write permission on the models directory and the volume has free space larger than the model file","On Windows, exclude the app's models directory from real-time antivirus scanning","Surface the io::ErrorKind (PermissionDenied / StorageFull) in the UI so users can tell permissions from disk space"],"exampleFix":"// before\nlet file = fs::File::create(&file_path)\n    .await\n    .map_err(|e| anyhow!(\"Failed to create file {}: {}\", filename, e))?;\n\n// after\nif let Some(parent) = file_path.parent() {\n    tokio::fs::create_dir_all(parent)\n        .await\n        .map_err(|e| anyhow!(\"Failed to create models dir {}: {}\", parent.display(), e))?;\n}\nlet file = fs::File::create(&file_path)\n    .await\n    .map_err(|e| anyhow!(\"Failed to create file {}: {}\", filename, e))?","handlingStrategy":"validation","validationCode":"// Pre-flight before starting a parakeet model download\nlet dir = file_path.parent().unwrap();\ntokio::fs::create_dir_all(dir).await?;\nlet probe = dir.join(\".write_probe\");\ntokio::fs::write(&probe, b\"x\").await?; // fails fast on permissions\ntokio::fs::remove_file(&probe).await?;","typeGuard":null,"tryCatchPattern":"match download_result {\n    Err(e) if e.to_string().starts_with(\"Failed to create file\") => {\n        // filesystem-level: check dir exists, permissions, free space; do NOT retry blindly\n        show_fix_storage_dialog();\n    }\n    other => other,\n}","preventionTips":["Create the models directory with create_dir_all at app startup, not lazily at download time","Check available disk space against the model's total size before invoking download","Exclude the app's models directory from antivirus and cloud-sync tools"],"tags":["filesystem","download","io","rust"],"backgroundTag":"file-create-permission-denied","analyzedSha":"0281737d87d26352fb0adc78c8c0975f691b23d1","analyzedAt":"2026-08-16T20:57:52.567Z","schemaVersion":2},"datasetVersion":"2026-08-16T23:17:17.608Z"}