Whoops! The default skin for your wiki, defined in $wgDefaultSkin as elwiki, is not available.
Your installation seems to include the following skins. See Manual: Skin configuration for information how to enable them and choose the default.
monobook / MonoBook (disabled) 
timeless / Timeless (disabled) 
vector / Vector (disabled)
- If you have just installed MediaWiki
 
- You probably installed from git, or directly from the source code using some other method. This is expected. Try installing some skins from mediawiki.org's skin directory, by:
 
- Doing this should not interfere with your git repository if you're a MediaWiki developer.
 
- If you have just upgraded MediaWiki
 
- MediaWiki 1.24 and newer no longer automatically enables installed skins (see Manual: Skin autodiscovery). You can paste the following lines into 
LocalSettings.php to enable all installed skins: 
wfLoadSkin( 'MonoBook' );
wfLoadSkin( 'Timeless' );
wfLoadSkin( 'Vector' );
- If you have just modified 
LocalSettings.php 
- Double-check the skin names for typos.