Resolving dependencies...
Configuring vector-algorithms-0.7.0.1...
Building vector-algorithms-0.7.0.1...
Installed vector-algorithms-0.7.0.1
Configuring mono-traversable-1.0.8.1...
Building mono-traversable-1.0.8.1...
Installed mono-traversable-1.0.8.1
Configuring transaction-0.1.1.1...
Building transaction-0.1.1.1...
Failed to install transaction-0.1.1.1
Build log ( /home/builder/.cabal/logs/ghc-8.2.2/transaction-0.1.1.1-J5I1hfdBfli33s6w165IvU.log ):
cabal: Entering directory '/tmp/cabal-tmp-28455/transaction-0.1.1.1'
Configuring transaction-0.1.1.1...
Preprocessing library for transaction-0.1.1.1..
Building library for transaction-0.1.1.1..
[1 of 1] Compiling Data.Transaction ( src/Data/Transaction.hs, dist/build/Data/Transaction.o )

src/Data/Transaction.hs:211:17: error:
    • Variable not in scope: length :: Transaction a -> Int
    • Perhaps you meant ‘olength’ (imported from Data.MonoTraversable)
      Perhaps you want to remove ‘length’ from the explicit hiding list
      in the import of ‘Prelude’ (src/Data/Transaction.hs:(35,1)-(57,3)).
    |
211 |   lengthIndex = length
    |                 ^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-28455/transaction-0.1.1.1'
cabal: Error: some packages failed to install:
transaction-0.1.1.1-J5I1hfdBfli33s6w165IvU failed during the building phase.
The exception was:
ExitFailure 1