The "" cache configuration does not exist - php

Question

I am updating a project from CakePHP 3.5 to 4.0.
In one of my models, I am doing this:
public function afterSave(Event $event, EntityInterface $entity)
{
Cache::clear(false, 'dbResults');
}
This works in the "old" version of my project with CakePHP 3.5, but fails with CakePHP 4.0 with the error
The "" cache configuration does not exist.#0 /var/www/repo/public/vendor/cakephp/cakephp/src/Cache/Cache.php(230): Cake\Cache\Cache::_buildEngine('')
I don't understand why the code tries to search for a configuration with empty string "".
Here is the relevant part of my app.php config file:
'Cache' => [
'default' => [
'className' => 'File',
'prefix' => 'headless_',
'path' => CACHE,
'url' => env('CACHE_DEFAULT_URL', null),
],
'_cake_core_' => [
'className' => 'File',
'prefix' => 'headless_cake_core_',
'path' => CACHE . 'persistent/',
'serialize' => true,
'duration' => '+2 minutes',
'url' => env('CACHE_CAKECORE_URL', null),
],
'_cake_model_' => [
'className' => 'File',
'prefix' => 'headless_cake_model_',
'path' => CACHE . 'models/',
'serialize' => true,
'duration' => '+2 minutes',
'url' => env('CACHE_CAKEMODEL_URL', null),
],
'permissions' => [
'className' => 'File',
'prefix' => 'headless_',
'path' => CACHE . 'permissions/',
'url' => env('CACHE_PERMISSIONS_URL', null),
],
'dbResults' => [
'className' => 'File',
'prefix' => 'headless_',
'path' => CACHE . 'dbResults/',
'url' => env('CACHE_PERMISSIONS_URL', null),
'duration' => '+1440 minutes',
],
'pages' => [
'className' => 'File',
'prefix' => 'page_',
'path' => CACHE . 'pages/',
'serialize' => true,
'duration' => '+320 minutes',
],
'page_contents' => [
'className' => 'File',
'prefix' => 'pc_',
'path' => CACHE . 'page_contents/',
'serialize' => true,
'duration' => '+320 minutes',
],
],
In addition to that, in my bootstrap.php file I am doing
Cache::setConfig(Configure::consume('Cache'));
I don't understand why I get this error when everything seems to be properly configured.

Answer 1

Please update the following line
Cache::clear('dbResults');
In CakePHP 4, Cache::clear() accepts only one parameter as opposed to CakePHP 3. They removed the $check parameter. Unfortunately migration guide does not seem to be updated about this.
Reference:
https://book.cakephp.org/4/en/core-libraries/caching.html#clearing-cached-data