class not found

[withinboredom]

When running composer update or composer dump, the following error is generated:

PHP Fatal error:  Uncaught Error: Class "Composer\ClassMapGenerator\ClassMapGenerator" not found in ./vendor/olvlvl/composer-attribute-collector/src/ClassMapBuilder.php:44

[olvlvl]

Hi. Thanks for reporting an issue. Since the plugin is executed by Composer it's interesting that it cannot find the class. Could you share more? Maybe your composer.json?

[withinboredom]

This is the gist, try installing with this I guess.

{
  "name": "XXX/XXX",
  "type": "project",
  "autoload": {
    "psr-4": {
      "XXXX\\XXX\\": "src/"
    }
  },
  "authors": [
    {
      "name": "Robert Landers",
      "email": "XXX"
    }
  ],
  "require": {
    "php": ">=8.2",
    "slim/slim": "^4.11",
    "nyholm/psr7": "^1.5",
    "nyholm/psr7-server": "^1.0",
    "php-di/php-di": "^6.4",
    "php-di/slim-bridge": "^3.2"
  },
  "scripts": {
    "dev": [
      "docker run -it --rm -p 80:80 -p 443:443 -v $(pwd):/app -w /app dev-build:latest"
    ],
    "dev:build": [
      "docker build -t dev-build:latest ."
    ],
    "dev:cli": [
      "docker run -it --rm -p 80:80 -p 443:443 -v $(pwd):/app -w /app --user $(id -u) dev-build:latest /bin/bash"
    ]
  },
  "require-dev": {
    "pestphp/pest": "^1.22",
    "roave/security-advisories": "dev-latest"
  },
  "config": {
    "allow-plugins": {
      "pestphp/pest-plugin": true
    },
    "process-timeout": 0
  }
}

Since the plugin is executed by Composer it's interesting that it cannot find the class

That was my thought as well. I was hoping you'd already seen this after I scratched my head for a while because this really felt like a user-error issue. You know?

[olvlvl]

Thanks for the compose.json. This is what I did.

I created a Docker image to run with PHP 8.2:

FROM php:8.2-cli-buster

RUN echo '\
display_errors=On\n\
error_reporting=E_ALL\n\
date.timezone=UTC\n\
' >> /usr/local/etc/php/conf.d/php.ini

ENV COMPOSER_ALLOW_SUPERUSER 1

RUN apt-get update && \
    apt-get install unzip && \
    curl -s https://raw.githubusercontent.com/composer/getcomposer.org/76a7060ccb93902cd7576b67264ad91c8a2700e2/web/installer | php -- --quiet && \
    mv composer.phar /usr/local/bin/composer && \
    echo 'export PATH="$HOME/.composer/vendor/bin:$PATH"\n' >> /root/.bashrc

With this docker-compose.yaml:

---
version: "3.2"
services:
  app:
    build: .
    volumes:
    - .:/app:delegated
    working_dir: /app

I edited your composer.json to make it valid:

{
  "require": {
    "php": ">=8.2",
    "slim/slim": "^4.11",
    "nyholm/psr7": "^1.5",
    "nyholm/psr7-server": "^1.0",
    "php-di/php-di": "^6.4",
    "php-di/slim-bridge": "^3.2"
  },
  "scripts": {
    "dev": [
      "docker run -it --rm -p 80:80 -p 443:443 -v $(pwd):/app -w /app dev-build:latest"
    ],
    "dev:build": [
      "docker build -t dev-build:latest ."
    ],
    "dev:cli": [
      "docker run -it --rm -p 80:80 -p 443:443 -v $(pwd):/app -w /app --user $(id -u) dev-build:latest /bin/bash"
    ]
  },
  "require-dev": {
    "pestphp/pest": "^1.22",
    "roave/security-advisories": "dev-latest"
  },
  "config": {
    "allow-plugins": {
      "pestphp/pest-plugin": true,
      "olvlvl/composer-attribute-collector": true
    },
    "process-timeout": 0
  }
}

Running composer install gives me this:

Running composer require olvlvl/composer-attribute-collector gives me this:

And this is the resulting attributes.php:

<?php

// attributes.php @generated by https://github.com/olvlvl/composer-attribute-collector

namespace olvlvl\ComposerAttributeCollector;

Attributes::with(fn () => new Collection(
    targetClasses: [
        \AllowDynamicProperties::class => [
            [ [], \Laravel\SerializableClosure\Support\ClosureStream::class ],
        ],

    ],
    targetMethods: [

    ],
));

This is running with the latest version of composer: v2.5.0.

Could you try without the autoload maybe and see what it does?

[olvlvl]

I'm closing this issue because there was no response for a month. Please reopen if the problem persists.