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Preprocessing executables for blog-0.1...
Building blog-0.1...
[13 of 16] Compiling Blog.Views       ( src/Blog/Views.hs, dist/build/blog.cgi/blog.cgi-tmp/Blog/Views.o )

src/Blog/Views.hs:87:40:
    Overlapping instances for SEType
                                a
                                (([Char], [(Blog.Category.Category, [Char])])
                                 -> ([Char], Bool)
                                 -> ByteString)
      arising from a use of `renderf'
                   at src/Blog/Views.hs:(87,40)-(89,42)
    Matching instances:
      instance (ToSElem a, SEType b r) => SEType b ((String, a) -> r)
        -- Defined in HStringTemplate-0.5.1.3:Text.StringTemplate.Renderf
      instance (Stringable a) => SEType a a
        -- Defined in HStringTemplate-0.5.1.3:Text.StringTemplate.Renderf
    (The choice depends on the instantiation of `a'
     To pick the first instance above, use -XIncoherentInstances
     when compiling the other instance declarations)
    In the second argument of `($)', namely
        `(renderf
            t ("categories", categories) ("hasCategories", not $ null cats))'
    In the second argument of `($)', namely
        `standardResponseBS
       $ (renderf
            t ("categories", categories) ("hasCategories", not $ null cats))'
    In the second argument of `($)', namely
        `Just
       $   standardResponseBS
         $ (renderf
              t ("categories", categories) ("hasCategories", not $ null cats))'

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