class not found when extending a non-autoloaded class

[aymanrady]

Rector is using runtime reflection ( in ClassBlacklistReflectionProvider ) to parse the src file, Am I misunderstanding the autoloadPaths configuration or what exactly is wrong?

~ vendor/bin/rector process --dry-run
[ERROR] Could not process "src/ExtendNonAutoloadedClass.php" file, due to:                                             
         "Analyze error: "Class RectorSandbox_NonAutoloadedClass not found.". Include your files in                     
         "$rectorConfig->autoloadPaths([...]);" or "$rectorConfig->bootstrapFiles([...]);" in "rector.php" config.      
         See https://github.com/rectorphp/rector#configuration". 

// rector.php
declare(strict_types=1);

return static function (\Rector\Config\RectorConfig $rectorConfig): void
{
	$rectorConfig->paths([ __DIR__ . '/src' ]);
	$rectorConfig->autoloadPaths([ __DIR__ . '/includes' ]);

	$rectorConfig->rule(\Rector\CodeQuality\Rector\Class_\InlineConstructorDefaultToPropertyRector::class);
};

// composer.json
{
  "name": "rector-sandbox/rector-sandbox",
  "type": "project",
  "autoload": {
    "psr-4": {
      "RectorSandbox\\": "src/"
    }
  },
  "require-dev": {
    "rector/rector": "^0.12.23"
  }
}

// src/ExtendNonAutoloadedClass.php

declare(strict_types=1);

namespace RectorSandbox;

class ExtendNonAutoloadedClass extends \RectorSandbox_NonAutoloadedClass
{

}

// includes/RectorSandbox_NonAutoloadedClass.php

declare(strict_types=1);

class RectorSandbox_NonAutoloadedClass
{

}

[samsonasik]

That usually solve the issue, if that still not found, possibly overlapped, you can register to composer.json under files:

    "autoload-dev": {
        "files": [
            "vendor/acme/my-custom-dependency/src/Your/Own/Namespace/TheAffectedClass.php"
        ]
    }

and run:

composer dump-autoload

it is documented at https://github.com/rectorphp/rector/blob/main/docs/static_reflection_and_autoload.md#dealing-with-class--was-not-found-while-trying-to-analyse-it