当我使用composer 2时，Heroku检测到composer 1

Question

当尝试在Heroku中部署时，返回以下错误：

!     The following is the full output from the installation attempt:
!     
!     > You are using Composer 1 which is deprecated. You should upgrade to Composer 2, see https://blog.packagist.com/deprecating-composer-1-support/
!     > Loading repositories with available runtimes and extensions
!     > Updating dependencies
!     > Your requirements could not be resolved to an installable set of packages.
!     > 
!     >   Problem 1
!     >     - The requested package composer-plugin-api could not be found in any version, there may be a typo in the package name.
!     > 

关于如何解决这个问题，没有太多信息。否则，我应该如何指定正在使用composer 2？所有东西都是从composer 2安装的。

composer.json

{
"autoload": {
"psr-4": {
"App\": "app/"
},
"files": [
"App/helpers.php"
]
},
"require": {
"vlucas/phpdotenv": "^5.4",
"abraham/twitteroauth": "^3.2",
"jenssegers/blade": "^1.4",
"bramus/router": "^1.6",
"nesbot/carbon": "^2.55",
"phpfastcache/phpfastcache": "*",
"php": ">=8.0"
}
}

composer——版本

Composer version 2.2.1 2021-12-22 22:21:31

Answer 1

问题出在composer的确切版本上，heroku使用composer版本2.1.14(https://devcenter.heroku.com/articles/php-support#installation-依赖项(，我的作曲家是2.2.1。

我用以下方法修复了它：

移除composer.lock&供应商

composer self-update 2.1.14

composer install