Minify项目Composer安装报错问题咨询

Let's break down these two issues stopping your composer install from working and fix them one by one:

Issue 1: "scrapbook/psr-cache" package not found #

The error hits the nail on the head here—you've almost certainly got a typo in the package name. There's no official scrapbook/psr-cache package available on Packagist.

The correct Scrapbook package that implements PSR cache standards (both PSR-6 and PSR-16) is scrapbook/cache. To fix this:

• Open your composer.json file
• Locate the require or require-dev section where scrapbook/psr-cache is listed
• Replace it with a valid version constraint like "scrapbook/cache": "^0.5" (check Packagist for the latest stable version if needed)
• Or skip editing the file manually and run this terminal command to auto-update your dependencies:

  composer require scrapbook/cache
  

Issue 2: "satooshi/php-coveralls dev-master" version doesn't exist #

The dev-master branch for this package was retired some time ago. The active development branches are now 1.0.x-dev and 1.1.x-dev, with stable releases going up to 1.1.x.

You’ve got two solid options here:

1. Use a stable version (recommended) for reliable, consistent builds:
   Update your composer.json to use a constraint like "satooshi/php-coveralls": "^1.1", or run:

   composer require satooshi/php-coveralls:^1.1 --dev
   

2. Use a development branch if you need unreleased features:
   Swap out dev-master for 1.1.x-dev in your composer.json, or run:

   composer require satooshi/php-coveralls:1.1.x-dev --dev
   

Once you’ve fixed both package references, run composer install again—it should resolve the dependencies without a hitch.

内容的提问来源于stack exchange，提问作者Omer