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Failed to install neural-0.3.0.1
Build log ( /home/builder/.cabal/logs/neural-0.3.0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-19897/neural-0.3.0.1'
Configuring neural-0.3.0.1...
Building neural-0.3.0.1...
Preprocessing library neural-0.3.0.1...
[ 1 of 22] Compiling Data.Utils.Statistics ( src/Data/Utils/Statistics.hs, dist/build/Data/Utils/Statistics.o )
[ 2 of 22] Compiling Data.Utils.Arrow ( src/Data/Utils/Arrow.hs, dist/build/Data/Utils/Arrow.o )
[ 3 of 22] Compiling Data.MyPrelude   ( src/Data/MyPrelude.hs, dist/build/Data/MyPrelude.o )
[ 4 of 22] Compiling Data.Utils.Analytic ( src/Data/Utils/Analytic.hs, dist/build/Data/Utils/Analytic.o )
[ 5 of 22] Compiling Data.Utils.Cache ( src/Data/Utils/Cache.hs, dist/build/Data/Utils/Cache.o )
[ 6 of 22] Compiling Data.Utils.Stack ( src/Data/Utils/Stack.hs, dist/build/Data/Utils/Stack.o )
[ 7 of 22] Compiling Data.Utils.Traversable ( src/Data/Utils/Traversable.hs, dist/build/Data/Utils/Traversable.o )
[ 8 of 22] Compiling Data.Utils.List  ( src/Data/Utils/List.hs, dist/build/Data/Utils/List.o )
[ 9 of 22] Compiling Data.Utils.Pipes ( src/Data/Utils/Pipes.hs, dist/build/Data/Utils/Pipes.o )
[10 of 22] Compiling Data.Utils.Random ( src/Data/Utils/Random.hs, dist/build/Data/Utils/Random.o )
[11 of 22] Compiling Numeric.Neural.Model ( src/Numeric/Neural/Model.hs, dist/build/Numeric/Neural/Model.o )
[12 of 22] Compiling Data.FixedSize.Class ( src/Data/FixedSize/Class.hs, dist/build/Data/FixedSize/Class.o )
[13 of 22] Compiling Data.FixedSize.Vector ( src/Data/FixedSize/Vector.hs, dist/build/Data/FixedSize/Vector.o )

src/Data/FixedSize/Vector.hs:104:31: error:
    • Couldn't match type ‘1 + n’ with ‘n + 1’
      Expected type: VS.Vector (n + 1) a
        Actual type: VS.Vector (1 + n) a
      NB: ‘+’ is a type function, and may not be injective
    • In the second argument of ‘($)’, namely ‘VS.cons x xs’
      In the expression: Vector $ VS.cons x xs
      In an equation for ‘cons’:
          cons x (Vector xs) = Vector $ VS.cons x xs
    • Relevant bindings include
        xs :: VS.Vector n a (bound at src/Data/FixedSize/Vector.hs:104:16)
        cons :: a -> Vector n a -> Vector (n + 1) a
          (bound at src/Data/FixedSize/Vector.hs:104:1)

src/Data/FixedSize/Vector.hs:112:28: error:
    • Couldn't match type ‘n + 1’ with ‘1 + n0’
      Expected type: VS.Vector (1 + n0) a
        Actual type: VS.Vector (n + 1) a
      NB: ‘+’ is a type function, and may not be injective
      The type variable ‘n0’ is ambiguous
    • In the first argument of ‘VS.head’, namely ‘v’
      In the expression: VS.head v
      In an equation for ‘vhead’: vhead (Vector v) = VS.head v
    • Relevant bindings include
        v :: VS.Vector (n + 1) a
          (bound at src/Data/FixedSize/Vector.hs:112:15)
        vhead :: Vector (n + 1) a -> a
          (bound at src/Data/FixedSize/Vector.hs:112:1)

src/Data/FixedSize/Vector.hs:120:37: error:
    • Couldn't match type ‘n + 1’ with ‘1 + n’
      Expected type: VS.Vector (1 + n) a
        Actual type: VS.Vector (n + 1) a
      NB: ‘+’ is a type function, and may not be injective
    • In the first argument of ‘VS.tail’, namely ‘v’
      In the second argument of ‘($)’, namely ‘VS.tail v’
      In the expression: Vector $ VS.tail v
    • Relevant bindings include
        v :: VS.Vector (n + 1) a
          (bound at src/Data/FixedSize/Vector.hs:120:15)
        vtail :: Vector (n + 1) a -> Vector n a
          (bound at src/Data/FixedSize/Vector.hs:120:1)
cabal: Leaving directory '/tmp/cabal-tmp-19897/neural-0.3.0.1'
cabal: Error: some packages failed to install:
neural-0.3.0.1 failed during the building phase. The exception was:
ExitFailure 1