Unable to install/update

[neoacevedo]

Your requirements could not be resolved to an installable set of packages.

Problem 1

• p2made/yii2-p2y2-things 4.0.0-alpha requires p2made/yii2-p2y2-base 4.0.0-dev -> no matching package found.
• p2made/yii2-p2y2-base 4.0.1 requires yiisoft/yii2-bootstrap4 ~2.0.6 -> satisfiable by yiisoft/yii2-bootstrap4[2.0.6, 2.0.7, 2.0.8] but these conflict with your requirements or minimum-stability.
• p2made/yii2-p2y2-base 4.0.0 requires yiisoft/yii2-bootstrap4 ~2.0.6 -> satisfiable by yiisoft/yii2-bootstrap4[2.0.6, 2.0.7, 2.0.8] but these conflict with your requirements or minimum-stability.
• p2made/yii2-startbootstrap-themes 4.0.0-alpha requires p2made/yii2-p2y2-things ~4.0 -> satisfiable by p2made/yii2-p2y2-things[4.0.0-alpha, 4.0.0-rc1].
• p2made/yii2-p2y2-things 4.0.0-rc1 requires p2made/yii2-p2y2-base ~4.0 -> satisfiable by p2made/yii2-p2y2-base[4.0.0, 4.0.1].
• Installation request for p2made/yii2-startbootstrap-themes ~4.0 -> satisfiable by p2made/yii2-startbootstrap-themes[4.0.0-alpha].

Potential causes:

• A typo in the package name
• The package is not available in a stable-enough version according to your minimum-stability setting see https://getcomposer.org/doc/04-schema.md#minimum-stability for more details.
• It's a private package and you forgot to add a custom repository to find it

Read https://getcomposer.org/doc/articles/troubleshooting.md for further common problems.

minimum-stability: dev