Deprecated: DataValues\StringValue implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /srv/wiki.openstreetmap.org/w/vendor/data-values/data-values/src/StringValue.php on line 7
Deprecated: DataValues\UnknownValue implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /srv/wiki.openstreetmap.org/w/vendor/data-values/data-values/src/UnknownValue.php on line 0
Deprecated: DataValues\Geo\Values\GlobeCoordinateValue implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /srv/wiki.openstreetmap.org/w/vendor/data-values/geo/src/Values/GlobeCoordinateValue.php on line 20
Deprecated: DataValues\MonolingualTextValue implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /srv/wiki.openstreetmap.org/w/vendor/data-values/common/src/DataValues/MonolingualTextValue.php on line 0
Deprecated: DataValues\UnboundedQuantityValue implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /srv/wiki.openstreetmap.org/w/vendor/data-values/number/src/DataValues/UnboundedQuantityValue.php on line 23
Deprecated: DataValues\QuantityValue implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /srv/wiki.openstreetmap.org/w/vendor/data-values/number/src/DataValues/QuantityValue.php on line 23
Deprecated: DataValues\TimeValue implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /srv/wiki.openstreetmap.org/w/vendor/data-values/time/src/DataValues/TimeValue.php on line 15 Pages that link to "Item:Q19511" - OpenStreetMap Wiki
Whoops! The default skin for your wiki, defined in $wgDefaultSkin as vector, 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.
cologneblue / CologneBlue (enabled)
minervaneue / MinervaNeue (disabled)
modern / Modern (enabled)
monobook / MonoBook (enabled)
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:
Downloading the tarball installer, which comes with several skins and extensions. You can copy and paste the skins/ directory from it.
Downloading individual skin tarballs from mediawiki.org.
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: