googleapis/mcp-toolbox · error

sql.Open: %w

Error message

sql.Open: %w

What it means

sql.Open failed for the SQLite driver during initSQLiteConnection — the driver could not be loaded or the dbPath was rejected outright (open is lazy, so this is config-level, not a file-read failure).

Source

Thrown at internal/sources/sqlite/sqlite.go:172

		out = append(out, row)
	}

	if err = rows.Err(); err != nil {
		return nil, fmt.Errorf("error iterating rows: %w", err)
	}

	return out, nil
}

func initSQLiteConnection(ctx context.Context, tracer trace.Tracer, name, dbPath string) (*sql.DB, error) {
	//nolint:all // Reassigned ctx
	ctx, span := sources.InitConnectionSpan(ctx, tracer, SourceType, name)
	defer span.End()

	// Open database connection
	db, err := sql.Open("sqlite", dbPath)
	if err != nil {
		return nil, fmt.Errorf("sql.Open: %w", err)
	}

	// Set some reasonable defaults for SQLite
	db.SetMaxOpenConns(1) // SQLite only supports one writer at a time
	db.SetMaxIdleConns(1)

	return db, nil
}

View on GitHub (pinned to 8cc6e09de2)

Solutions

1. Verify the dbPath is a valid file path for SQLite
2. Ensure the sqlite driver is properly linked in the build
3. Check for malformed DSN/URI parameters in the path

When it happens

Trigger: Thrown at internal/sources/sqlite/sqlite.go:172 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of googleapis/mcp-toolbox@8cc6e09de2 (2026-09-05). Data as JSON: /api/errors/8ff2b601ee0b7d64. Report an issue: GitHub.