Warning: The install command is a part of the legacy v1 style of cabal usage. Please switch to using either the new project style and the new-install command or the legacy v1-install alias as new-style projects will become the default in the next version of cabal-install. Please file a bug if you cannot replicate a working v1- use case with the new-style commands. For more information, see: https://wiki.haskell.org/Cabal/NewBuild Resolving dependencies... Starting mmsyn3-0.1.4.0 Starting mmsyn5-0.4.3.0 Starting primitive-0.7.0.1 Building mmsyn5-0.4.3.0 Building mmsyn3-0.1.4.0 Building primitive-0.7.0.1 Completed mmsyn5-0.4.3.0 Completed mmsyn3-0.1.4.0 Completed primitive-0.7.0.1 Starting vector-0.12.1.2 Building vector-0.12.1.2 Completed vector-0.12.1.2 Starting mmsyn2-0.1.7.0 Building mmsyn2-0.1.7.0 Completed mmsyn2-0.1.7.0 Starting mmsyn6ukr-0.6.3.1 Building mmsyn6ukr-0.6.3.1 Completed mmsyn6ukr-0.6.3.1 Starting mmsyn7s-0.6.5.1 Starting mmsyn7ukr-0.15.3.0 Building mmsyn7s-0.6.5.1 Building mmsyn7ukr-0.15.3.0 Completed mmsyn7s-0.6.5.1 Completed mmsyn7ukr-0.15.3.0 Starting dobutokO2-0.3.0.0 Building dobutokO2-0.3.0.0 Failed to install dobutokO2-0.3.0.0 Build log ( /home/builder/.cabal/logs/ghc-8.6.3/dobutokO2-0.3.0.0-FSULQ2lE8UF7MUEvyNNQcK.log ): cabal: Entering directory '/tmp/cabal-tmp-24593/dobutokO2-0.3.0.0' Configuring dobutokO2-0.3.0.0... Preprocessing executable 'dobutokO2' for dobutokO2-0.3.0.0.. Building executable 'dobutokO2' for dobutokO2-0.3.0.0.. : warning: [-Wmissing-home-modules] These modules are needed for compilation but not listed in your .cabal file's other-modules: DobutokO.Sound [1 of 2] Compiling DobutokO.Sound ( DobutokO/Sound.hs, dist/build/dobutokO2/dobutokO2-tmp/DobutokO/Sound.o ) DobutokO/Sound.hs:430:31: error: • Ambiguous type variable ‘a0’ arising from a use of ‘rem’ prevents the constraint ‘(Integral a0)’ from being solved. Relevant bindings include ceilP :: a0 (bound at DobutokO/Sound.hs:430:20) Probable fix: use a type annotation to specify what ‘a0’ should be. These potential instances exist: instance Integral Integer -- Defined in ‘GHC.Real’ instance Integral Int -- Defined in ‘GHC.Real’ instance Integral Word -- Defined in ‘GHC.Real’ ...plus one instance involving out-of-scope types (use -fprint-potential-instances to see them all) • In the expression: truncate time1 `rem` 4 In an equation for ‘ceilP’: ceilP = truncate time1 `rem` 4 In the expression: let mantissa = time1 - (fromIntegral . truncate $ time1) ceilP = truncate time1 `rem` 4 in if ceilP == 0 then return ("0." ++ (showFFloat (Just 4) mantissa $ show 0)) else return $ (showFFloat (Just 4) ceilP $ show 0) ++ "." ++ (showFFloat (Just 4) mantissa $ show 0) | 430 | ceilP = truncate time1 `rem` 4 in | ^^^^^^^^^^^^^^^^^^^^^^ DobutokO/Sound.hs:430:52: error: • Ambiguous type variable ‘a0’ arising from the literal ‘4’ prevents the constraint ‘(Num a0)’ from being solved. Relevant bindings include ceilP :: a0 (bound at DobutokO/Sound.hs:430:20) Probable fix: use a type annotation to specify what ‘a0’ should be. These potential instances exist: instance Num Integer -- Defined in ‘GHC.Num’ instance Num Double -- Defined in ‘GHC.Float’ instance Num Float -- Defined in ‘GHC.Float’ ...plus two others ...plus two instances involving out-of-scope types (use -fprint-potential-instances to see them all) • In the second argument of ‘rem’, namely ‘4’ In the expression: truncate time1 `rem` 4 In an equation for ‘ceilP’: ceilP = truncate time1 `rem` 4 | 430 | ceilP = truncate time1 `rem` 4 in | ^ DobutokO/Sound.hs:431:19: error: • Ambiguous type variable ‘a0’ arising from a use of ‘==’ prevents the constraint ‘(Eq a0)’ from being solved. Relevant bindings include ceilP :: a0 (bound at DobutokO/Sound.hs:430:20) Probable fix: use a type annotation to specify what ‘a0’ should be. These potential instances exist: instance Eq Ordering -- Defined in ‘ghc-prim-0.5.3:GHC.Classes’ instance Eq Integer -- Defined in ‘integer-gmp-1.0.2.0:GHC.Integer.Type’ instance Eq UZP -- Defined in ‘MMSyn7.Syllable’ ...plus 24 others ...plus 21 instances involving out-of-scope types (use -fprint-potential-instances to see them all) • In the expression: ceilP == 0 In the expression: if ceilP == 0 then return ("0." ++ (showFFloat (Just 4) mantissa $ show 0)) else return $ (showFFloat (Just 4) ceilP $ show 0) ++ "." ++ (showFFloat (Just 4) mantissa $ show 0) In the expression: let mantissa = time1 - (fromIntegral . truncate $ time1) ceilP = truncate time1 `rem` 4 in if ceilP == 0 then return ("0." ++ (showFFloat (Just 4) mantissa $ show 0)) else return $ (showFFloat (Just 4) ceilP $ show 0) ++ "." ++ (showFFloat (Just 4) mantissa $ show 0) | 431 | if ceilP == 0 then return ("0." ++ (showFFloat (Just 4) mantissa $ show 0)) | ^^^^^^^^^^ DobutokO/Sound.hs:431:28: error: • Ambiguous type variable ‘a0’ arising from the literal ‘0’ prevents the constraint ‘(Num a0)’ from being solved. Relevant bindings include ceilP :: a0 (bound at DobutokO/Sound.hs:430:20) Probable fix: use a type annotation to specify what ‘a0’ should be. These potential instances exist: instance Num Integer -- Defined in ‘GHC.Num’ instance Num Double -- Defined in ‘GHC.Float’ instance Num Float -- Defined in ‘GHC.Float’ ...plus two others ...plus two instances involving out-of-scope types (use -fprint-potential-instances to see them all) • In the second argument of ‘(==)’, namely ‘0’ In the expression: ceilP == 0 In the expression: if ceilP == 0 then return ("0." ++ (showFFloat (Just 4) mantissa $ show 0)) else return $ (showFFloat (Just 4) ceilP $ show 0) ++ "." ++ (showFFloat (Just 4) mantissa $ show 0) | 431 | if ceilP == 0 then return ("0." ++ (showFFloat (Just 4) mantissa $ show 0)) | ^ DobutokO/Sound.hs:432:31: error: • Ambiguous type variable ‘a0’ arising from a use of ‘showFFloat’ prevents the constraint ‘(RealFloat a0)’ from being solved. Relevant bindings include ceilP :: a0 (bound at DobutokO/Sound.hs:430:20) Probable fix: use a type annotation to specify what ‘a0’ should be. These potential instances exist: instance RealFloat Double -- Defined in ‘GHC.Float’ instance RealFloat Float -- Defined in ‘GHC.Float’ • In the expression: showFFloat (Just 4) ceilP In the first argument of ‘(++)’, namely ‘(showFFloat (Just 4) ceilP $ show 0)’ In the second argument of ‘($)’, namely ‘(showFFloat (Just 4) ceilP $ show 0) ++ "." ++ (showFFloat (Just 4) mantissa $ show 0)’ | 432 | else return $ (showFFloat (Just 4) ceilP $ show 0) ++ "." ++ (showFFloat (Just 4) mantissa $ show 0)) (do | ^^^^^^^^^^^^^^^^^^^^^^^^^ cabal: Leaving directory '/tmp/cabal-tmp-24593/dobutokO2-0.3.0.0' cabal: Error: some packages failed to install: dobutokO2-0.3.0.0-FSULQ2lE8UF7MUEvyNNQcK failed during the building phase. The exception was: ExitFailure 1