PHPunit is throwing error 'Version mismatch detected for the PHPUnit Polyfills. Please ensure that PHPUnit Polyfills 1.1.0 or higher is loaded'

BretWeinraub
January 18, 2024
139 views
1 vote
2 Answers

This is on a Mac M1 running Ventura 13.1, PHP installed via HomeBrew.

PHP 7.4.33 (cli) (built: Sep 1 2023 02:37:00) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Xdebug v3.1.5, Copyright (c) 2002-2022, by Derick Rethans
with Zend OPcache v7.4.33, Copyright (c), by Zend Technologies

Phpunit install via

composer require phpunit/phpunit

Error is

Error: Version mismatch detected for the PHPUnit Polyfills. Please ensure that PHPUnit Polyfills 1.1.0 or higher is loaded. Found version: 1.0.3

I tried:

 composer update --dev yoast/phpunit-polyfills --with-dependencies

as listed here https://github.com/Yoast/PHPUnit-Polyfills?tab=readme-ov-file#installation to no effect.

Answers

Chosen as BEST ANSWER
- BretWeinraub
- January 18, 2024 at 2:10 pm
- 0 votes
0
I figured it out, here's a command to force install of the desired version
```
composer require --dev yoast/phpunit-polyfills:"^1.1.0"
```