Composer version conflict with react/http

[samuelnogueira]

Q	A
Bug?	no
New Feature?	no
Version	Latest

Actual Behavior

Composer evenement/evenement version conflict:

snogueira@snogueira:~/git/teste$ composer require react/http
Using version ^0.8.0 for react/http
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 12 installs, 0 updates, 0 removals
  - Installing react/promise (v2.5.1): Loading from cache
  - Installing evenement/evenement (v3.0.1): Loading from cache
  - Installing react/event-loop (v0.4.3): Loading from cache
  - Installing react/stream (v0.7.5): Loading from cache
  - Installing react/promise-stream (v1.1.0): Downloading (100%)         
  - Installing react/promise-timer (v1.2.0): Loading from cache
  - Installing react/socket (v0.8.6): Loading from cache
  - Installing react/dns (v0.4.11): Loading from cache
  - Installing react/cache (v0.4.1): Loading from cache
  - Installing psr/http-message (1.0.1): Loading from cache
  - Installing ringcentral/psr7 (1.2.1): Loading from cache
  - Installing react/http (v0.8.0): Downloading (100%)         
react/event-loop suggests installing ext-libevent (>=0.1.0)
react/event-loop suggests installing ext-event (~1.0)
react/event-loop suggests installing ext-libev (*)
Writing lock file
Generating autoload files
snogueira@snogueira:~/git/teste$ composer require php-http/react-adapter
Using version ^2.0 for php-http/react-adapter
./composer.json has been updated
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
    - Installation request for php-http/react-adapter ^2.0 -> satisfiable by php-http/react-adapter[v2.0.0].
    - Conclusion: remove evenement/evenement v3.0.1
    - Conclusion: don't install evenement/evenement v3.0.1
    - php-http/react-adapter v2.0.0 requires react/http-client ^0.4.8 -> satisfiable by react/http-client[v0.4.10, v0.4.11, v0.4.12, v0.4.13, v0.4.14, v0.4.15, v0.4.16, v0.4.17, v0.4.8, v0.4.9].
    - react/http-client v0.4.10 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.11 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.12 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.13 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.14 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.15 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.16 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.17 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.8 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - react/http-client v0.4.9 requires evenement/evenement ~2.0 -> satisfiable by evenement/evenement[v2.0.0, v2.1.0].
    - Can only install one of: evenement/evenement[v2.0.0, v3.0.1].
    - Can only install one of: evenement/evenement[v2.1.0, v3.0.1].
    - Installation request for evenement/evenement (locked at v3.0.1) -> satisfiable by evenement/evenement[v3.0.1].


Installation failed, reverting ./composer.json to its original content.

Expected Behavior

No version conflict when requiring php-http/react-adapter

Steps to Reproduce

composer init
composer require react/http
composer require php-http/react-adapter

Possible Solutions

Update dependency on react/stream from ^0.4.3 to ^0.4 maybe?

[dbu]

afaik, semver says that 0.x releases are experimental releases and don't have to respect BC between minor versions. so ^0.4 does not allow 0.5.0. the caret operator allows all of the same major version, so ^1.1.1 would allow 1.9.0 for example. we do have some tests, so you can make a pull request to change the requirement on the react components to ^0.4.8 | ^0.5 (plus any other pre versions that might be needed) and see if that works.