Resolving dependencies... Starting exceptions-0.10.4 Starting primitive-0.7.1.0 Starting microlens-0.4.11.2 Starting transformers-compat-0.6.5 Building exceptions-0.10.4 Building microlens-0.4.11.2 Building transformers-compat-0.6.5 Building primitive-0.7.1.0 Completed transformers-compat-0.6.5 Starting unliftio-core-0.2.0.1 Completed microlens-0.4.11.2 Starting microlens-mtl-0.2.0.1 Building unliftio-core-0.2.0.1 Building microlens-mtl-0.2.0.1 Completed exceptions-0.10.4 Completed unliftio-core-0.2.0.1 Completed microlens-mtl-0.2.0.1 Completed primitive-0.7.1.0 Starting resourcet-1.2.4.2 Building resourcet-1.2.4.2 Completed resourcet-1.2.4.2 Starting little-rio-0.2.0 Building little-rio-0.2.0 Failed to install little-rio-0.2.0 Build log ( /home/builder/.cabal/logs/ghc-8.6.3/little-rio-0.2.0-IJdZ20tfeWtJ1wtvtr9YYs.log ): cabal: Entering directory '/tmp/cabal-tmp-4842/little-rio-0.2.0' Configuring little-rio-0.2.0... Preprocessing library for little-rio-0.2.0.. Building library for little-rio-0.2.0.. [1 of 2] Compiling LittleRIO ( src/LittleRIO.hs, dist/build/LittleRIO.o ) src/LittleRIO.hs:53:80: error: Not in scope: type constructor or class ‘MonadFail’ | 53 | deriving (Functor, Applicative, Monad, MonadReader env, MonadIO, MonadThrow, MonadFail, MonadCatch, MonadMask, MonadUnliftIO) | ^^^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-4842/little-rio-0.2.0' cabal: Error: some packages failed to install: little-rio-0.2.0-IJdZ20tfeWtJ1wtvtr9YYs failed during the building phase. The exception was: ExitFailure 1