TypeError: callback is not a function

is this package still maintenance? I got an error like this
`TypeError: callback is not a function` 

This is my code : 
`let sql = config.database.name;`
 `let sqlFile = __dirname + '/mysql/app.sql'`
        `execsql.config(DB_Config)`
          `  .exec(sql)`
            `.execFile(sqlFile, (err, results)=>{`
                `console.log(results)`
            `}).end()`
