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jwaldmann / star-exec-presenter

presentation platform for star-exec written in Haskell and based upon Yesod
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No instance for (Semigroup Statistics) #190

Closed jwaldmann closed 6 years ago

jwaldmann commented 6 years ago

when compiling with stackage lts-12 (ghc-8.4)

src/Presenter/Statistics.hs:39:10: error:
    • No instance for (Semigroup Statistics)
        arising from the superclasses of an instance declaration
    • In the instance declaration for ‘Monoid Statistics’
   |
39 | instance Monoid Statistics where
   |          ^^^^^^^^^^^^^^^^^