"Processing error message" is a predefined property containing a textual description of an error and is provided by Semantic MediaWiki. This property is pre-deployed (also known as special property) and comes with additional administrative privileges but can be used just like any other user-defined property.
A
C
Category "History" contains an invalid redirect target to a non-category namespace.
G
Category "History" contains an invalid redirect target to a non-category namespace.
H
L
M
Category "Services" contains an invalid redirect target to a non-category namespace.
O
Property "Has location" (as page type) with input value "http://www.openstreetmap.org/?lat=52.6949492096901&lon=4.75968986749649&zoom=17 Geestmerambacht] (NL)" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.
P
Property "Has location" (as page type) with input value "Chaosdorf -> NRW-Forum und zurück" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.
Property "Has location" (as page type) with input value "Hackcenter]] und [[VirtualSpace#Hackcenter" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.
R
S
Category "Services" contains an invalid redirect target to a non-category namespace.
T