Fatal error: Uncaught Error: Interface 'SMW\Schema\SchemaFilter' not found in /home/mapeador/solecov2/w/extensions/SemanticMediaWiki/src/Schema/Filters/NamespaceFilter.php:18 Stack trace: #0 {main} thrown in /home/mapeador/solecov2/w/extensions/SemanticMediaWiki/src/Schema/Filters/NamespaceFilter.php on line 18