SyntaxError：无效或意外的令牌第5行我似乎找不到缺少什么或语法错误的地方

    const getData = () => {
        return new Promise((resolve) => {
          const connection = createConnection();
          const sqlQuery = fs.readFileSync('./file.sql').toString();
      ​
          connection.connect((err) => {
            if (err) {
              console.log('Error connecting to Db:' + err);
              return;
            }
            console.log('Database connection established.');
            connection.query(sqlQuery, (err, results, fields) => {
              if (err) throw err;
              connection.end((err) => {
                if (err) {
                  console.log(err);
                }
                console.log('Database connection closed.');
                resolve(results);
              });
            });
          });
        });
      };