Method $this->isBs4() do not exist in Sortable.php

[jjmaceda]

Prerequisites

• I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
• The issue still exists against the latest master branch of yii2-sortable.
• This is not an usage question. I confirm having gone through and read the documentation and demos.
• This is not a general programming / coding question. (Those should be directed to the webtips Q & A forum).
• I have attempted to find the simplest possible steps to reproduce the issue.
• I have included a failing test as a pull request (Optional).

Steps to reproduce the issue

1. composer update
2. Updating kartik-v/yii2-sortable dev-master (5d418b8 => 89593b9)
3. Calling unknown method: kartik\sortable\Sortable::isBs4()

Expected behavior and actual behavior

When I follow those steps, I see...
Calling unknown method: kartik\sortable\Sortable::isBs4()
I was expecting...
loading the page normally

Environment

Browsers

• Google Chrome
• Mozilla Firefox
• Internet Explorer
• Safari

Operating System

• Windows
• Mac OS X
• Linux
• Mobile

Libraries

• jQuery version:
• yii2-sortable version: dev-master

Isolating the problem

• This bug happens on the docs and demos page
• The bug happens consistently across all tested browsers
• This bug happens when using yii2-sortable without other plugins.

[kartik-v]

You must run composer update to update all extensions with their dependencies.

The issue for you is happening because you do not have updated releases of all extensions and their dependencies OR you are trying to manually update / copy only this extension without dependency.