Thread:Extension talk:Semantic Glossary/blank Mediawiki after installing Semantic Glossary/reply

You really need SMW 1.6, 1.5 will not work, there were considerable changes. SMW 1.6 not being released is also the main reason why Semantic Glossary has not seen a release yet. However, SMW 1.6 is reasonably stable by now so you might give it a try.