Can't load Semigroups after Smallsemi

[james-d-mitchell]

Error, required filters [ "IsListOrCollection", "IsCollection", "IsDuplicateFree", "HasIsDuplicateFree", "IsExtLElement",
  "CategoryCollections(IsExtLElement)", "IsExtRElement", "CategoryCollections(IsExtRElement)",
  "CategoryCollections(IsMultiplicativeElement)", "IsGeneralizedDomain", "IsMagma", "IsAssociative",
  "HasIsAssociative", "IsGeneratorsOfSemigroup", "HasIsGeneratorsOfSemigroup", "CanUseFroidurePin",
  "HasCanUseFroidurePin", "CanUseLibsemigroupsCongruences", "HasCanUseLibsemigroupsCongruences" ]
for 1st argument do not match a declaration of IsSelfDualSemigroup called from
<<compiled GAP code>> from GAPROOT/lib/oper1.g:336 in function InstallMethod called from
<function "InstallMethod">( <arguments> )
 called from read-eval loop at /Users/jdm/gap/pkg/semigroups/gap/attributes/properties.gi:1658
you can 'quit;' to quit to outer loop, or
you can 'return;' to continue