Resolving dependencies... Downloading array-mhs-0.5.8.0 Downloaded array-mhs-0.5.8.0 Configuring array-mhs-0.5.8.0... Preprocessing library for array-mhs-0.5.8.0.. Building library for array-mhs-0.5.8.0.. [ 1 of 17] Compiling Data.Array ( Data/Array.hs, dist/build/Data/Array.o, dist/build/Data/Array.dyn_o ) Data/Array.hs:57:1: error: [GHC-87110] Could not find module Mhs.Array. Use -v to see a list of the files searched for. | 57 | import Mhs.Array -- Most of the hard work is done here | ^^^^^^^^^^^^^^^^ [ 2 of 17] Compiling Data.Array.IOArray ( Data/Array/IOArray.hs, dist/build/Data/Array/IOArray.o, dist/build/Data/Array/IOArray.dyn_o ) Data/Array/IOArray.hs:16:1: error: [GHC-61948] Could not find module Control.Monad.ST_Type. Perhaps you meant Control.Monad.ST.Imp Control.Monad.ST.Safe (from base-4.19.2.0) Control.Monad.ST (from base-4.19.2.0) Use -v to see a list of the files searched for. | 16 | import Control.Monad.ST_Type | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Data/Array/IOArray.hs:18:1: error: [GHC-87110] Could not find module Mhs.Array. Use -v to see a list of the files searched for. | 18 | import Mhs.Array | ^^^^^^^^^^^^^^^^ Data/Array/IOArray.hs:19:1: error: [GHC-87110] Could not find module Mhs.MutArr. Use -v to see a list of the files searched for. | 19 | import Mhs.MutArr | ^^^^^^^^^^^^^^^^^ Failed to install array-mhs-0.5.8.0 Error: cabal: Some packages failed to install: array-mhs-0.5.8.0-L8PeCJbWVx44dsXts434BY failed during the building phase. The exception was: ExitFailure 1