Error messages

This is the list of error messages, as found in die() and exit() expressions.

MessageFileLine
'Action is unavailable'
/app/Repositories/Category.php141
"Such product can't be related with current category"
/app/Repositories/Category.php99
"Any product can't be related to category if category has child category"
/app/Repositories/Category.php95
"Locale attribute can't be unlinked"
/app/Repositories/ProductFamily.php53
"'Remove all relations' action is blocked for such relation"
/app/Repositories/ProductFamily.php49
"Locale attribute can't be deleted"
/app/Repositories/ProductAttributeValue.php95
"Locale attribute scope can't be changed"
/app/Repositories/ProductAttributeValue.php65
"Locale multiEnum attribute can't be changed"
/app/Repositories/ProductAttributeValue.php62
sprintf($this->exception('Such product attribute \'%s\' already exists'), $entity->get('attribute')->get('name'))
/app/Listeners/ProductAttributeValueEntity.php75
"Locale attribute scope can't be changed"
/app/Repositories/ProductFamilyAttribute.php139
"Locale attribute can't be linked"
/app/Repositories/ProductFamilyAttribute.php135
"Locale attribute can't be deleted"
/app/Repositories/ProductFamilyAttribute.php83
"Locale attribute can't be unlinked"
/app/Repositories/AttributeGroup.php58
"Locale attribute can't be linked"
/app/Repositories/AttributeGroup.php44
"Locale attribute can't be deleted"
/app/Repositories/Attribute.php92
"The number of 'Values' items should be identical for all locales"
/app/Repositories/Attribute.php58
'Configurator settings incorrect'
/app/Listeners/ImportFeedEntity.php48
'Category is not exist'
/app/Entities/Category.php92
"Incorrect value for attribute '{$config['attribute']->get('name')}'"
/app/Import/Types/Simple/FieldConverters/Unit.php47
"Incorrect measuring unit for attribute '{$config['attribute']->get('name')}'"
/app/Import/Types/Simple/FieldConverters/Unit.php52
"Action '$action' does not exist in controller '$controller'"
/app/Controllers/AbstractProductTypeController.php117
"Such category can't be related with current product"
/app/Repositories/Product.php110
'Action is unavailable'
/app/Repositories/Product.php136
"Locale attribute can't be linked"
/app/Repositories/ProductAttributeValue.php56
"Locale enum attribute can't be changed"
/app/Repositories/ProductAttributeValue.php59