php - 结论 : remove guzzlehttp/guzzle 6. 2.0

Question

在 composer require irazasyed/telegram-bot-sdk ^2.0 运行正常之后，现在我正在尝试使用 composer require erlangb/betfair 包含另一个包，但这是我从 Composer 那里得到的:

Using version ^0.2.0 for erlangb/betfair
./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
    - erlangb/betfair 0.2.0 requires guzzlehttp/guzzle-services 0.5.* -> satisfi
able by guzzlehttp/guzzle-services[0.5.0].
    - Conclusion: remove guzzlehttp/guzzle 6.2.0
    - guzzlehttp/guzzle-services 0.5.0 requires guzzlehttp/command 0.7.* -> sati
sfiable by guzzlehttp/command[0.7.0, 0.7.1].
    - Conclusion: don't install guzzlehttp/command 0.7.1
    - Installation request for erlangb/betfair ^0.2.0 -> satisfiable by erlangb/
betfair[0.2.0].
    - Conclusion: don't install guzzlehttp/guzzle 6.2.0
    - guzzlehttp/command 0.7.0 requires guzzlehttp/guzzle ~5.0 -> satisfiable by
 guzzlehttp/guzzle[5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.1.0, 5.2.0, 5.3.0].
    - Can only install one of: guzzlehttp/guzzle[5.0.0, 6.2.0].
    - Can only install one of: guzzlehttp/guzzle[5.0.1, 6.2.0].
    - Can only install one of: guzzlehttp/guzzle[5.0.2, 6.2.0].
    - Can only install one of: guzzlehttp/guzzle[5.0.3, 6.2.0].
    - Can only install one of: guzzlehttp/guzzle[5.1.0, 6.2.0].
    - Can only install one of: guzzlehttp/guzzle[5.2.0, 6.2.0].
    - Can only install one of: guzzlehttp/guzzle[5.3.0, 6.2.0].
    - Installation request for guzzlehttp/guzzle == 6.2.0.0 -> satisfiable by gu
zzlehttp/guzzle[6.2.0].

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

我能做什么？

Answer 1

简而言之

在 composer 中，您不能拥有同一包的两个版本，因为由于 PHP 中命名空间的性质，这会导致自动加载冲突。

错误

telegram-bot-sdk 包需要版本 ~6.0，正如您在它的 composer.json 中看到的那样

"require": {
  ...
  "guzzlehttp/guzzle": "~6.0",
  ...
},

但是erlangb/betfair 0.2.0需要 ~5.0，guzzlehttp/command 0.7.0还需要 ~5.0，这又是 guzzlehttp/guzzle-services 0.5.0 所需要的.不幸的是，erlangb/betfair 的 dev-master 分支仍在使用旧的 Guzzle 版本，所以这不好。我建议您要么找到一个替代的 betfair 包，要么自己 fork 并更新它。