lspitzner / butcher Goto Github PK

Building library for butcher-1.3.2.0..
[ 1 of 11] Compiling UI.Butcher.Monadic.Internal.Types ( src/UI/Butcher/Monadic/Internal/Types.hs, dist/build/UI/Butcher/Monadic/Internal/Types.o )

src/UI/Butcher/Monadic/Internal/Types.hs:230:10: error:
    Duplicate instance declarations:
      instance Alternative Deque
        -- Defined at src/UI/Butcher/Monadic/Internal/Types.hs:230:10
      instance [safe] Alternative Deque -- Defined in ‘Deque’
    |
230 | instance Alternative Deque where
    |          ^^^^^^^^^^^^^^^^^

src/UI/Butcher/Monadic/Internal/Types.hs:234:10: error:
    Duplicate instance declarations:
      instance MonadPlus Deque
        -- Defined at src/UI/Butcher/Monadic/Internal/Types.hs:234:10
      instance [safe] MonadPlus Deque -- Defined in ‘Deque’
    |
234 | instance MonadPlus Deque
    |          ^^^^^^^^^^^^^^^
cabal: Failed to build butcher-1.3.2.0 (which is required by test:wrapper-test