Cloning stack Cloning into 'stack'... Error: While constructing the build plan, the following exceptions were encountered: In the dependencies for Glob-0.9.2: containers-0.6.0.1 from stack configuration does not match <0.6 (latest matching version is 0.5.11.0) needed due to stack-1.10.0 -> Glob-0.9.2 In the dependencies for aeson-compat-0.3.8: base-4.12.0.0 from stack configuration does not match >=4.6 && <4.12 (latest matching version is 4.11.1.0) containers-0.6.0.1 from stack configuration does not match >=0.5 && <0.6 (latest matching version is 0.5.11.0) needed due to stack-1.10.0 -> aeson-compat-0.3.8 In the dependencies for async-2.1.1.1: base-4.12.0.0 from stack configuration does not match >=4.3 && <4.11 (latest matching version is 4.10.1.0) needed due to stack-1.10.0 -> async-2.1.1.1 In the dependencies for blaze-markup-0.8.2.1: base-4.12.0.0 from stack configuration does not match >=4 && <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> blaze-markup-0.8.2.1 In the dependencies for contravariant-1.4.1: base-4.12.0.0 from stack configuration does not match <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> contravariant-1.4.1 In the dependencies for exceptions-0.8.3: template-haskell-2.14.0.0 from stack configuration does not match >=2.2 && <2.14 (latest matching version is 2.13.0.0) needed due to stack-1.10.0 -> exceptions-0.8.3 In the dependencies for hackage-security-0.5.3.0: base-4.12.0.0 from stack configuration does not match >=4.8 && <4.12 (latest matching version is 4.11.1.0) containers-0.6.0.1 from stack configuration does not match >=0.4 && <0.6 (latest matching version is 0.5.11.0) needed due to stack-1.10.0 -> hackage-security-0.5.3.0 In the dependencies for haskell-src-exts-1.20.2: base-4.12.0.0 from stack configuration does not match >=4.5 && <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> haskell-src-exts-1.20.2 In the dependencies for haskell-src-meta-0.8.0.3: base-4.12.0.0 from stack configuration does not match >=4.6 && <4.12 (latest matching version is 4.11.1.0) template-haskell-2.14.0.0 from stack configuration does not match >=2.8 && <2.14 (latest matching version is 2.13.0.0) needed due to stack-1.10.0 -> haskell-src-meta-0.8.0.3 In the dependencies for http-api-data-0.3.8.1: base-4.12.0.0 from stack configuration does not match >=4.7 && <4.12 (latest matching version is 4.11.1.0) containers-0.6.0.1 from stack configuration does not match >=0.5.5.1 && <0.6 (latest matching version is 0.5.11.0) needed due to stack-1.10.0 -> http-api-data-0.3.8.1 In the dependencies for memory-0.14.16: base-4.12.0.0 from stack configuration does not match >=4 && <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> memory-0.14.16 In the dependencies for polyparse-1.12: base-4.12.0.0 from stack configuration does not match <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> polyparse-1.12 In the dependencies for regex-applicative-text-0.1.0.1: base-4.12.0.0 from stack configuration does not match >=4.3 && <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> regex-applicative-text-0.1.0.1 In the dependencies for safe-exceptions-0.1.7.0: base-4.12.0.0 from stack configuration does not match >=4.7 && <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> safe-exceptions-0.1.7.0 In the dependencies for semigroupoids-5.2.2: containers-0.6.0.1 from stack configuration does not match >=0.3 && <0.6 (latest matching version is 0.5.11.0) needed due to stack-1.10.0 -> semigroupoids-5.2.2 In the dependencies for stm-2.4.5.0: base-4.12.0.0 from stack configuration does not match >=4.3 && <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> stm-2.4.5.0 In the dependencies for text-metrics-0.3.0: containers-0.6.0.1 from stack configuration does not match >=0.5.6.2 && <0.6 (latest matching version is 0.5.11.0) needed due to stack-1.10.0 -> text-metrics-0.3.0 In the dependencies for th-expand-syns-0.4.4.0: template-haskell-2.14.0.0 from stack configuration does not match <2.14 (latest matching version is 2.13.0.0) needed due to stack-1.10.0 -> th-expand-syns-0.4.4.0 In the dependencies for th-lift-0.7.10: template-haskell-2.14.0.0 from stack configuration does not match >=2.4 && <2.14 (latest matching version is 2.13.0.0) needed due to stack-1.10.0 -> th-lift-0.7.10 In the dependencies for unliftio-core-0.1.1.0: base-4.12.0.0 from stack configuration does not match >=4.5 && <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> unliftio-core-0.1.1.0 In the dependencies for uri-bytestring-0.3.2.0: template-haskell-2.14.0.0 from stack configuration does not match >=2.9 && <2.14 (latest matching version is 2.13.0.0) needed due to stack-1.10.0 -> uri-bytestring-0.3.2.0 In the dependencies for vector-algorithms-0.7.0.1: base-4.12.0.0 from stack configuration does not match >=4.5 && <4.12 (latest matching version is 4.11.1.0) needed due to stack-1.10.0 -> vector-algorithms-0.7.0.1 Some different approaches to resolving this: * Set 'allow-newer: true' in /Users/ur20980/.stack/config.yaml to ignore all version constraints and build anyway. * Consider trying 'stack solver', which uses the cabal-install solver to attempt to find some working build configuration. This can be convenient when dealing with many complicated constraint errors, but results may be unpredictable. * Build requires unattainable version of base. Since base is a part of GHC, you most likely need to use a different GHC version with the matching base. Plan construction failed.