Installation theme

[magentouser185]

When i try to upgrade a theme a have this error:

Problem 1
- The requested package phpunit/phpunit (locked at 6.5.14, required as ~6.2.0) is satisfiable by phpunit/phpunit[6.5.14] but these conflict with your requirements or minimum-stability.
Problem 2
- codeception/phpunit-wrapper 6.6.1 requires phpunit/phpunit >=6.5.13 <7.0 -> satisfiable by phpunit/phpunit[6.5.13, 6.5.14] but these conflict with your requirements or minimum-stability.
- codeception/phpunit-wrapper 6.6.1 requires phpunit/phpunit >=6.5.13 <7.0 -> satisfiable by phpunit/phpunit[6.5.13, 6.5.14] but these conflict with your requirements or minimum-stability.
- codeception/phpunit-wrapper 6.6.1 requires phpunit/phpunit >=6.5.13 <7.0 -> satisfiable by phpunit/phpunit[6.5.13, 6.5.14] but these conflict with your requirements or minimum-stability.
- Installation request for codeception/phpunit-wrapper (locked at 6.6.1) -> satisfiable by codeception/phpunit-wrapper[6.6.1].

Anyone can help me?

[LitCommerce Expert · Accepted solution]

Run:

- composer require --dev phpunit/phpunit --update-with-dependencies
- composer update

[Sanjay Jethva]

@magentouser185 

Pass the below commands:

composer update
composer require phpunit/phpunit