fix attribute validation remove unnoticed old code from schema validation fix error message for missing attribute
fix attribute validation
remove unnoticed old code from schema validation
fix error message for missing attribute


marcosptf/pear-core,marcosptf/pear-core,marcosptf/pear-core,marcosptf/pear-core,marcosptf/pear-core,marcosptf/pear-core