How to Install CodeIgniter 4

fuelphp controller

Fuelphp controller:

COREPATH/classes/database/pdo/connection.php @ line 208

COREPATH/classes/database/pdo/connection.php @ line 208

203                        // other database error, cleanup the profiler
204                        isset($benchmark) and  \Profiler::delete($benchmark);
205
206                        // and convert the exception in a database exception
207                        $error_code = is_numeric($e->getCode()) ? $e->getCode() : 0;
208                        throw new \Database_Exception($e->getMessage().' with query: "'.$sql.'"', $error_code, $e);
209                    }
210                }
211
212                // no more attempts left, bail out
213                else

Please help me on fulephp error.

Fuel\Core\Database_Exception [ 1045 ]: SQLSTATE[28000] [1045] Access denied for user 'root'@'localhost' (using password: YES)

Fuel\Core\Database_Exception [ 1045 ]: SQLSTATE[28000] [1045] Access denied for user 'root'@'localhost' (using password: YES)

COREPATH/classes/database/pdo/connection.php @ line 94

89            $this->_connection = new \PDO($dsn, $username, $password, $attrs);
90        }
91        catch (\PDOException $e)
92        {
93            $error_code = is_numeric($e->getCode()) ? $e->getCode() : 0;
94            throw new \Database_Exception($e->getMessage(), $error_code, $e);
95        }
96
97        if ( ! empty($this->_config['charset']))
98        {
99            // Set Charset for SQL Server connection

Please suggest why i am getting this error

ErrorException [ Parsing Error ]: syntax error, unexpected T_DOUBLE_ARROW APPPATH/config/db.php @ line 8

APPPATH/config/db.php @ line 8

8Fuel::DEVELOPMENT => array(
 9   'type'         => 'mysql',
10   'connection'   => array(
11      'hostname'   => 'localhost',
12      'database'   => 'fuelin',
13      'username'   => 'root',

Please suggest problem with above code? 

ErrorException [ Error ]: Class 'Orm\Model' not found

ErrorException [ Error ]: Class 'Orm\Model' not found

APPPATH/classes/model/blogtest.php @ line 5

 0
 1<?php
 2use Orm\Model;
 3
 4class Model_Blogtest extends Model
 5{
 6    protected static $_properties = array(
 7        'id',
 8        'name',
 9        'description',
10        'created_at',

If you are getting problem in development on fuelPHP. Please Load ORM package by un commenting  

 'packages'  => array(
   'orm','auth'
   ), on  app/config/config.php file.

How to install FuelPHP on localhost

Sorry Article is move to its new URL:
How to install FuelPHP on localhost