This package requires php ^7.2.2 but your PHP version (7.1.9)?

Question

Composer

[email protected]:~$ php -v
PHP 7.2.2-1+ubuntu16.04.1+deb.sury.org+1 (cli) (built: Feb  1 2018 16:01:26) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.2.2-1+ubuntu16.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies
    with Zend Server Z-Ray v9.2.0, Copyright (c) 2004-2017, by Zend Technologies
    with blackfire v1.18.2~linux-x64-non_zts72, https://blackfire.io, by SensioLabs

composer.json

"require": {
        "php": "^7.2.2",

ERROR

$ composer install
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - This package requires php ^7.2.2 but your PHP version (7.1.9) does not satisfy that requirement.

Vagrant updated, and Homestead, there is already a version of php 7.2, composer.lock was deleted.
Why throw out another error, please tell me?

Answer 1

there may be another problem in .env
https://github.com/laravel/framework/issues/20214#...
https://github.com/laravel/framework/issues/20214#...
I encountered this behavior there - it is 7.2 by default, but in fact 7.1
Try to go into the virtual machine and change to the manual version of PHP
, a numbered list of alternatives will be offered (in particular, indicating the path to real files) with a suggestion to enter number (from the list) to change the current choice of alternative, well, restart PHP-FPM.
If this option works, you will need to add a command to after.sh and write something to the developers ...