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Error in build Messages.hs: No Instanse Semigroup for DisplayData #6

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netay opened this issue Aug 30, 2019 · 0 comments

netay commented Aug 30, 2019

Solves by adding

instance Semigroup DisplayData where
   DisplayData map1 <> DisplayData map2 = DisplayData $ Map.unionWith (<>) map1 map2

to Messages.hs

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