如何解决“您的要求无法解析为可安装的软件包”？

Question

My composer json is like this :

https://pastebin.com/6aedCGt4

I do : composer update

There exist error like this :

$ composer update

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

- laravelcollective/html dev-master requires illuminate/http 5.5.* -> satisfiable by illuminate/http[5.5.x-dev] but these conflict with your requirements or minimum-stability.

- laravelcollective/html dev-master requires illuminate/http 5.5.* -> satisfiable by illuminate/http[5.5.x-dev] but these conflict with your requirements or minimum-stability.

- Installation request for laravelcollective/html dev-master -> satisfiable by laravelcollective/html[dev-master].

How can I solve it?

Answer 1

See https://getcomposer.org/doc/04-schema.md#minimum-stability, try setting minimum-stability to "dev", and run composer update again.