$this->formatPlural(
count($config_objects),
'Unable to install @extension, %config_names already exists in active configuration.',
'Unable to install @extension, %config_names already exist in active configuration.',
[
'%config_names' => implode(', ', $config_objects),
$this->formatPlural(
count($config_objects),
'Unable to install @extension, %config_names already exists in active configuration.',
'Unable to install @extension, %config_names already exist in active configuration.',
[
'%config_names' => implode(', ', $config_objects),