'error.project_exists' => 'Project with this name already exists.',
'error.task_exists' => 'Task with this name already exists.',
'error.client_exists' => 'Client with this name already exists.',
'error.invoice_exists' => 'Invoice with this number already exists.',
'error.project_exists' => 'Project with this name already exists.',
'error.task_exists' => 'Task with this name already exists.',
'error.client_exists' => 'Client with this name already exists.',
'error.invoice_exists' => 'Invoice with this number already exists.',