Application broken after upgrading from v4.03 to v4.0.4

It is not easy to replicate the problem.

Can you please copy and paste details of the error and enclose the script inside

// Error messages go here

or preferably

PHP Code:

// script goes here 


Fixed! Buth codeigniter should put a proper upgrade guild next time.
Fixed solution here.
in version 4.0.3 we declare our filter before function by using.

PHP Code:

public function before(RequestInterface $request)
{
 //code here
} 


But in version 4.0.4 i need to add $arguments = null to the param

PHP Code:

public function before(RequestInterface $request, $arguments = null)
{
   // code here
}