WithoutK5.err

WithoutK5.agda:11,24-28
The variables
  A
  b
which are used (perhaps as constructor parameters) in the index
expressions
  refl
are free in the parameters
  {_≡_ {A} b b}
  refl
when checking that the pattern refl has type
_≡_ {_≡_ {A} b b} refl refl