Hi, I got too many error messages when I try to install git-annex. Is there a good way to fix them? Why cabal install print so many irrelevant messages? Is it better to follow Unix "Rule of Silence" to only print usage error messages? http://en.wikipedia.org/wiki/Unix_philosophy ~$ cabal install git-annex Resolving dependencies... In order, the following will be installed: aeson-0.8.0.2 +old-locale (new version) asn1-parse-0.9.0 (reinstall) changes: text-1.2.0.4 added cookie-0.4.1.4 (new package) crypto-random-0.0.9 (reinstall) changes: unix-2.7.0.1 added, vector-0.10.12.3 added cprng-aes-0.6.1 (reinstall) clientsession-0.9.1.1 (new package) crypto-numbers-0.2.7 (reinstall) changes: vector-0.10.12.3 added crypto-pubkey-0.2.8 (reinstall) fast-logger-2.3.1 (reinstall) changes: text-1.2.0.4 added free-4.11 (reinstall) changes: bifunctors-4.2.1 added, comonad-4.2.5 added, profunctors-4.4.1 added, semigroupoids-4.3 added, semigroups-0.16.2.2 added, template-haskell-2.9.0.0 added adjunctions-4.2 (reinstall) changes: comonad-4.2.5 added, contravariant-1.3.1 added, profunctors-4.4.1 added, semigroupoids-4.3 added, semigroups-0.16.2.2 added, void-0.7 added either-4.3.3.2 (reinstall) changes: MonadRandom-0.3.0.2 added, bifunctors-4.2.1 added, exceptions-0.8.0.2 added, monad-control-1.0.0.4 added, profunctors-4.4.1 added, semigroupoids-4.3 added, semigroups-0.16.2.2 added, transformers-base-0.4.4 added errors-1.4.7 (reinstall) gnutls-0.1.5 (new package) gsasl-0.3.5 (new package) hfsevents-0.1.5 (reinstall) changes: text-1.2.0.4 added, unix-2.7.0.1 added iproute-1.4.0 (reinstall) changes: network-2.6.0.2 added kan-extensions-4.2.1 (reinstall) changes: comonad-4.2.5 added, contravariant-1.3.1 added, semigroupoids-4.3 added language-javascript-0.5.13.3 (reinstall) changes: blaze-builder-0.4.0.1 added hjsmin-0.1.4.7 (reinstall) changes: blaze-builder-0.4.0.1 added, optparse-applicative-0.11.0.2 added, text-1.2.0.4 added lens-4.9.1 (new package) mime-mail-0.4.8.2 (reinstall) changes: blaze-builder-0.4.0.1 added, random-1.0.1.1 -> 1.1, text-1.2.0.4 added network-protocol-xmpp-0.4.6 (new package) publicsuffixlist-0.1 (reinstall) changes: text-1.2.0.4 added http-client-0.4.11.1 (reinstall) changes: blaze-builder-0.4.0.1 added, case-insensitive-1.2.0.4 added, cookie-0.4.1.4 added, exceptions-0.8.0.2 added, http-types-0.8.6 added, mime-types-0.1.0.6 added, network-2.6.0.2 added, network-uri-2.6.0.1 added, random-1.0.1.1 -> 1.1, streaming-commons-0.1.12 added, text-1.2.0.4 added resourcet-1.1.4.1 (reinstall) changes: exceptions-0.8.0.2 added, lifted-base-0.2.3.6 added, monad-control-1.0.0.4 added, transformers-base-0.4.4 added conduit-1.2.4 (reinstall) changes: exceptions-0.8.0.2 added, lifted-base-0.2.3.6 added, transformers-base-0.4.4 added, void-0.7 added conduit-extra-1.1.7.2 (reinstall) changes: attoparsec-0.12.1.6 added, blaze-builder-0.4.0.1 added, monad-control-1.0.0.4 added, network-2.6.0.2 added, primitive-0.6 added, stm-2.4.4 added, streaming-commons-0.1.12 added, text-1.2.0.4 added, transformers-base-0.4.4 added cryptohash-conduit-0.1.1 (reinstall) dns-1.4.5 (reinstall) changes: attoparsec-0.12.1.6 added, blaze-builder-0.4.0.1 added, network-2.6.0.2 added, random-1.0.1.1 -> 1.1 monad-logger-0.3.13.1 (reinstall) changes: blaze-builder-0.4.0.1 added, exceptions-0.8.0.2 added, lifted-base-0.2.3.6 added, monad-control-1.0.0.4 added, stm-2.4.4 added, stm-chans-3.0.0.3 added, template-haskell-2.9.0.0 added, text-1.2.0.4 added, transformers-base-0.4.4 added persistent-2.1.3 (reinstall) changes: aeson-0.7.0.4 -> 0.8.0.2, attoparsec-0.12.1.6 added, blaze-html-0.8.0.2 added, blaze-markup-0.7.0.2 added, exceptions-0.8.0.2 added, lifted-base-0.2.3.6 added, monad-control-1.0.0.4 added, path-pieces-0.2.0 added, resource-pool-0.2.3.2 added, scientific-0.2.0.2 -> 0.3.3.8, template-haskell-2.9.0.0 added, text-1.2.0.4 added, transformers-base-0.4.4 added, unordered-containers-0.2.5.1 added, vector-0.10.12.3 added esqueleto-2.1.3 (reinstall) changes: text-1.2.0.4 added, unordered-containers-0.2.5.1 added persistent-sqlite-2.1.4.1 (reinstall) changes: aeson-0.7.0.4 -> 0.8.0.2, monad-control-1.0.0.4 added, text-1.2.0.4 added persistent-template-2.1.3 (reinstall) changes: aeson-0.7.0.4 -> 0.8.0.2, monad-control-1.0.0.4 added, path-pieces-0.2.0 added, template-haskell-2.9.0.0 added, text-1.2.0.4 added, unordered-containers-0.2.5.1 added shakespeare-2.0.4.1 (reinstall) changes: aeson-0.7.0.4 -> 0.8.0.2, blaze-html-0.8.0.2 added, blaze-markup-0.7.0.2 added, exceptions-0.8.0.2 added, parsec-3.1.9 added, system-fileio-0.3.16.2 added, system-filepath-0.4.13.3 added, template-haskell-2.9.0.0 added, text-1.2.0.4 added hamlet-1.2.0 (reinstall) socks-0.5.4 (reinstall) changes: network-2.6.0.2 added uuid-1.3.10 (reinstall) changes: random-1.0.1.1 -> 1.1, uuid-types-1.0.1 added wai-logger-2.2.4 (new package) wai-extra-3.0.7.1 (new package) warp-3.0.12 (reinstall) changes: blaze-builder-0.4.0.1 added, case-insensitive-1.2.0.4 added, hashable-1.2.3.2 added, http-date-0.0.6 added, http-types-0.8.6 added, network-2.6.0.2 added, simple-sendfile-0.2.18 added, streaming-commons-0.1.12 added, text-1.2.0.4 added, unix-2.7.0.1 added, vault-0.3.0.4 added, void-0.7 added, wai-3.0.2.3 added wai-app-static-3.0.1 (new package) x509-1.5.0.1 (reinstall) x509-store-1.5.0 (reinstall) x509-system-1.5.0 (reinstall) x509-validation-1.5.1 (reinstall) changes: network-2.6.0.2 added tls-1.2.17 (reinstall) changes: async-2.0.2 added, network-2.6.0.2 added connection-0.2.4 (reinstall) changes: network-2.6.0.2 added http-client-tls-0.2.2 (reinstall) changes: network-2.6.0.2 added http-conduit-2.1.5 (reinstall) changes: http-types-0.8.6 added, lifted-base-0.2.3.6 added, monad-control-1.0.0.4 added warp-tls-3.0.3 (reinstall) changes: network-2.6.0.2 added, streaming-commons-0.1.12 added, wai-3.0.2.3 added xml-conduit-1.2.4 (reinstall) changes: attoparsec-0.12.1.6 added, blaze-builder-0.4.0.1 added, blaze-html-0.8.0.2 added, blaze-markup-0.7.0.2 added, monad-control-1.0.0.4 added, system-filepath-0.4.13.3 added, text-1.2.0.4 added, xml-types-0.3.4 added aws-0.11.4 (new package) tagstream-conduit-0.5.5.3 (reinstall) changes: attoparsec-0.12.1.6 added, blaze-builder-0.4.0.1 added, case-insensitive-1.2.0.4 added, text-1.2.0.4 added authenticate-1.3.2.11 (reinstall) changes: aeson-0.7.0.4 -> 0.8.0.2, attoparsec-0.12.1.6 added, blaze-builder-0.4.0.1 added, case-insensitive-1.2.0.4 added, http-types-0.8.6 added, monad-control-1.0.0.4 added, network-uri-2.6.0.1 added, text-1.2.0.4 added, unordered-containers-0.2.5.1 added xml-hamlet-0.4.0.10 (reinstall) changes: parsec-3.1.9 added, template-haskell-2.9.0.0 added, text-1.2.0.4 added DAV-1.0.4 (new package) xss-sanitize-0.3.5.5 (reinstall) changes: attoparsec-0.12.1.6 added, css-text-0.1.2.1 added, network-uri-2.6.0.1 added, tagsoup-0.13.3 added, text-1.2.0.4 added yaml-0.8.11 (reinstall) changes: aeson-0.7.0.4 -> 0.8.0.2, attoparsec-0.12.1.6 added, enclosed-exceptions-1.0.1.1 added, scientific-0.2.0.2 -> 0.3.3.8, text-1.2.0.4 added, unordered-containers-0.2.5.1 added, vector-0.10.12.3 added yesod-core-1.4.9.1 (new package) yesod-default-1.2.0 (new package) yesod-persistent-1.4.0.2 (new package) yesod-form-1.4.4.1 (new package) yesod-auth-1.4.4 (new package) yesod-1.4.1.5 (new package) yesod-static-1.4.0.4 (new package) git-annex-5.20150420 -testsuite -feed (new package) Warning: Note that reinstalls are always dangerous. Continuing anyway... Configuring aeson-0.8.0.2... Configuring asn1-parse-0.9.0... Configuring cookie-0.4.1.4... Configuring crypto-random-0.0.9... Building asn1-parse-0.9.0... Building cookie-0.4.1.4... Building aeson-0.8.0.2... Building crypto-random-0.0.9... Failed to install asn1-parse-0.9.0 Build log ( /Users/py/.cabal/logs/asn1-parse-0.9.0.log ): Configuring asn1-parse-0.9.0... Building asn1-parse-0.9.0... Preprocessing library asn1-parse-0.9.0... Data/ASN1/Parse.hs:29:8: Could not find module ‘Data.ASN1.Stream’ There are files missing in the ‘asn1-encoding-0.9.0’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Failed to install crypto-random-0.0.9 Build log ( /Users/py/.cabal/logs/crypto-random-0.0.9.log ): Configuring crypto-random-0.0.9... Building crypto-random-0.0.9... Preprocessing library crypto-random-0.0.9... Crypto/Random/Entropy.hs:24:8: Could not find module ‘Data.SecureMem’ There are files missing in the ‘securemem-0.1.7’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Failed to install cookie-0.4.1.4 Build log ( /Users/py/.cabal/logs/cookie-0.4.1.4.log ): Configuring cookie-0.4.1.4... Building cookie-0.4.1.4... Preprocessing library cookie-0.4.1.4... Web/Cookie.hs:54:8: Could not find module ‘Data.Default’ There are files missing in the ‘data-default-0.5.3’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Configuring fast-logger-2.3.1... Configuring gnutls-0.1.5... Configuring free-4.11... Failed to install aeson-0.8.0.2 Configuring hfsevents-0.1.5... Build log ( /Users/py/.cabal/logs/aeson-0.8.0.2.log ): Configuring aeson-0.8.0.2... Building aeson-0.8.0.2... Preprocessing library aeson-0.8.0.2... Data/Aeson/Types/Generic.hs:28:8: Could not find module ‘Data.DList’ There are files missing in the ‘dlist-0.7.1.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Building fast-logger-2.3.1... Building hfsevents-0.1.5... Building gnutls-0.1.5... Building free-4.11... Configuring iproute-1.4.0... Configuring gsasl-0.3.5... Failed to install hfsevents-0.1.5 Build log ( /Users/py/.cabal/logs/hfsevents-0.1.5.log ): Configuring hfsevents-0.1.5... Building hfsevents-0.1.5... Preprocessing library hfsevents-0.1.5... System/OSX/FSEvents.hs:29:8: Could not find module ‘Data.Serialize.Get’ There are files missing in the ‘cereal-0.4.1.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Failed to install gnutls-0.1.5 Build log ( /Users/py/.cabal/logs/gnutls-0.1.5.log ): Configuring gnutls-0.1.5... Building gnutls-0.1.5... Preprocessing library gnutls-0.1.5... lib/Network/Protocol/TLS/GNU.hs:48:18: Could not find module ‘Control.Monad.Error’ There are files missing in the ‘monads-tf-0.1.0.2’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. lib/Network/Protocol/TLS/GNU.hs:49:18: Could not find module ‘Control.Monad.Reader’ There are files missing in the ‘monads-tf-0.1.0.2’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. lib/Network/Protocol/TLS/GNU.hs:50:18: Could not find module ‘Control.Monad.Trans’ There are files missing in the ‘monads-tf-0.1.0.2’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Configuring mime-mail-0.4.8.2... Failed to install fast-logger-2.3.1 Build log ( /Users/py/.cabal/logs/fast-logger-2.3.1.log ): Configuring fast-logger-2.3.1... Building fast-logger-2.3.1... Preprocessing library fast-logger-2.3.1... System/Log/FastLogger.hs:32:8: Could not find module ‘Control.Debounce’ There are files missing in the ‘auto-update-0.1.2.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Configuring publicsuffixlist-0.1... Failed to install free-4.11 Build log ( /Users/py/.cabal/logs/free-4.11.log ): Configuring free-4.11... Building free-4.11... Preprocessing library free-4.11... src/Control/Comonad/Cofree.hs:56:8: Could not find module ‘Prelude.Extras’ There are files missing in the ‘prelude-extras-0.4’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Configuring language-javascript-0.5.13.3... Failed to install gsasl-0.3.5 Build log ( /Users/py/.cabal/logs/gsasl-0.3.5.log ): Configuring gsasl-0.3.5... setup-Simple-Cabal-1.22.3.0-x86_64-osx-ghc-7.8.3: The pkg-config package 'libgsasl' version >=1.1 is required but it could not be found. Building iproute-1.4.0... Building mime-mail-0.4.8.2... Building publicsuffixlist-0.1... Configuring socks-0.5.4... Failed to install iproute-1.4.0 Build log ( /Users/py/.cabal/logs/iproute-1.4.0.log ): Configuring iproute-1.4.0... Building iproute-1.4.0... Preprocessing library iproute-1.4.0... Data/IP/Addr.hs:12:8: Could not find module ‘System.ByteOrder’ There are files missing in the ‘byteorder-1.0.4’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Data/IP/Addr.hs:13:8: Could not find module ‘Text.Appar.String’ There are files missing in the ‘appar-0.1.4’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Configuring uuid-1.3.10... Failed to install mime-mail-0.4.8.2 Build log ( /Users/py/.cabal/logs/mime-mail-0.4.8.2.log ): Configuring mime-mail-0.4.8.2... Building mime-mail-0.4.8.2... Preprocessing library mime-mail-0.4.8.2... Network/Mail/Mime.hs:46:18: Could not find module ‘Data.ByteString.Base64’ There are files missing in the ‘base64-bytestring-1.0.0.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Configuring resourcet-1.1.4.1... Failed to install publicsuffixlist-0.1 Build log ( /Users/py/.cabal/logs/publicsuffixlist-0.1.log ): Configuring publicsuffixlist-0.1... Building publicsuffixlist-0.1... Preprocessing library publicsuffixlist-0.1... Network/PublicSuffixList/DataStructure.hs:13:18: Could not find module ‘Data.Serialize.Get’ There are files missing in the ‘cereal-0.4.1.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Network/PublicSuffixList/Serialize.hs:4:18: Could not find module ‘Data.ByteString.UTF8’ There are files missing in the ‘utf8-string-1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Network/PublicSuffixList/Serialize.hs:7:18: Could not find module ‘Data.Serialize.Put’ There are files missing in the ‘cereal-0.4.1.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Network/PublicSuffixList/Types.hs:8:18: Could not find module ‘Data.Default’ There are files missing in the ‘data-default-0.5.3’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Building language-javascript-0.5.13.3... Building socks-0.5.4... Building uuid-1.3.10... Configuring xss-sanitize-0.3.5.5... Failed to install language-javascript-0.5.13.3 Build log ( /Users/py/.cabal/logs/language-javascript-0.5.13.3.log ): Configuring language-javascript-0.5.13.3... Building language-javascript-0.5.13.3... Preprocessing library language-javascript-0.5.13.3... src/Language/JavaScript/Pretty/Printer.hs:17:18: Could not find module ‘Codec.Binary.UTF8.String’ There are files missing in the ‘utf8-string-1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Failed to install socks-0.5.4 Build log ( /Users/py/.cabal/logs/socks-0.5.4.log ): Configuring socks-0.5.4... Building socks-0.5.4... Preprocessing library socks-0.5.4... Network/Socks5/Wire.hs:18:8: Could not find module ‘Data.Serialize’ There are files missing in the ‘cereal-0.4.1.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Failed to install uuid-1.3.10 Build log ( /Users/py/.cabal/logs/uuid-1.3.10.log ): Configuring uuid-1.3.10... Building uuid-1.3.10... Preprocessing library uuid-1.3.10... Data/UUID/Util.hs:16:8: Could not find module ‘Network.Info’ There are files missing in the ‘network-info-0.2.0.5’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Data/UUID/V3.hs:38:18: Could not find module ‘Crypto.Hash.MD5’ There are files missing in the ‘cryptohash-0.11.6’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Data/UUID/V5.hs:33:18: Could not find module ‘Crypto.Hash.SHA1’ There are files missing in the ‘cryptohash-0.11.6’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Building resourcet-1.1.4.1... Failed to install resourcet-1.1.4.1 Build log ( /Users/py/.cabal/logs/resourcet-1.1.4.1.log ): Configuring resourcet-1.1.4.1... Building resourcet-1.1.4.1... Preprocessing library resourcet-1.1.4.1... Control/Monad/Trans/Resource.hs:96:8: Could not find module ‘Control.Monad.Morph’ There are files missing in the ‘mmorph-1.0.4’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. Building xss-sanitize-0.3.5.5... Failed to install xss-sanitize-0.3.5.5 Build log ( /Users/py/.cabal/logs/xss-sanitize-0.3.5.5.log ): Configuring xss-sanitize-0.3.5.5... Building xss-sanitize-0.3.5.5... Preprocessing library xss-sanitize-0.3.5.5... Text/HTML/SanitizeXSS.hs:33:8: Could not find module ‘Codec.Binary.UTF8.String’ There are files missing in the ‘utf8-string-1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. cabal: Error: some packages failed to install: DAV-1.0.4 depends on resourcet-1.1.4.1 which failed to install. adjunctions-4.2 depends on free-4.11 which failed to install. aeson-0.8.0.2 failed during the building phase. The exception was: ExitFailure 1 asn1-parse-0.9.0 failed during the building phase. The exception was: ExitFailure 1 authenticate-1.3.2.11 depends on resourcet-1.1.4.1 which failed to install. aws-0.11.4 depends on resourcet-1.1.4.1 which failed to install. clientsession-0.9.1.1 depends on crypto-random-0.0.9 which failed to install. conduit-1.2.4 depends on resourcet-1.1.4.1 which failed to install. conduit-extra-1.1.7.2 depends on resourcet-1.1.4.1 which failed to install. connection-0.2.4 depends on socks-0.5.4 which failed to install. cookie-0.4.1.4 failed during the building phase. The exception was: ExitFailure 1 cprng-aes-0.6.1 depends on crypto-random-0.0.9 which failed to install. crypto-numbers-0.2.7 depends on crypto-random-0.0.9 which failed to install. crypto-pubkey-0.2.8 depends on crypto-random-0.0.9 which failed to install. crypto-random-0.0.9 failed during the building phase. The exception was: ExitFailure 1 cryptohash-conduit-0.1.1 depends on resourcet-1.1.4.1 which failed to install. dns-1.4.5 depends on resourcet-1.1.4.1 which failed to install. either-4.3.3.2 depends on free-4.11 which failed to install. errors-1.4.7 depends on free-4.11 which failed to install. esqueleto-2.1.3 depends on resourcet-1.1.4.1 which failed to install. fast-logger-2.3.1 failed during the building phase. The exception was: ExitFailure 1 free-4.11 failed during the building phase. The exception was: ExitFailure 1 git-annex-5.20150420 depends on xss-sanitize-0.3.5.5 which failed to install. gnutls-0.1.5 failed during the building phase. The exception was: ExitFailure 1 gsasl-0.3.5 failed during the configure step. The exception was: ExitFailure 1 hamlet-1.2.0 depends on aeson-0.8.0.2 which failed to install. hfsevents-0.1.5 failed during the building phase. The exception was: ExitFailure 1 hjsmin-0.1.4.7 depends on language-javascript-0.5.13.3 which failed to install. http-client-0.4.11.1 depends on publicsuffixlist-0.1 which failed to install. http-client-tls-0.2.2 depends on socks-0.5.4 which failed to install. http-conduit-2.1.5 depends on resourcet-1.1.4.1 which failed to install. iproute-1.4.0 failed during the building phase. The exception was: ExitFailure 1 kan-extensions-4.2.1 depends on free-4.11 which failed to install. language-javascript-0.5.13.3 failed during the building phase. The exception was: ExitFailure 1 lens-4.9.1 depends on free-4.11 which failed to install. mime-mail-0.4.8.2 failed during the building phase. The exception was: ExitFailure 1 monad-logger-0.3.13.1 depends on resourcet-1.1.4.1 which failed to install. network-protocol-xmpp-0.4.6 depends on gsasl-0.3.5 which failed to install. persistent-2.1.3 depends on resourcet-1.1.4.1 which failed to install. persistent-sqlite-2.1.4.1 depends on resourcet-1.1.4.1 which failed to install. persistent-template-2.1.3 depends on resourcet-1.1.4.1 which failed to install. publicsuffixlist-0.1 failed during the building phase. The exception was: ExitFailure 1 resourcet-1.1.4.1 failed during the building phase. The exception was: ExitFailure 1 shakespeare-2.0.4.1 depends on aeson-0.8.0.2 which failed to install. socks-0.5.4 failed during the building phase. The exception was: ExitFailure 1 tagstream-conduit-0.5.5.3 depends on resourcet-1.1.4.1 which failed to install. tls-1.2.17 depends on crypto-random-0.0.9 which failed to install. uuid-1.3.10 failed during the building phase. The exception was: ExitFailure 1 wai-app-static-3.0.1 depends on resourcet-1.1.4.1 which failed to install. wai-extra-3.0.7.1 depends on resourcet-1.1.4.1 which failed to install. wai-logger-2.2.4 depends on fast-logger-2.3.1 which failed to install. warp-3.0.12 depends on iproute-1.4.0 which failed to install. warp-tls-3.0.3 depends on iproute-1.4.0 which failed to install. x509-1.5.0.1 depends on asn1-parse-0.9.0 which failed to install. x509-store-1.5.0 depends on asn1-parse-0.9.0 which failed to install. x509-system-1.5.0 depends on asn1-parse-0.9.0 which failed to install. x509-validation-1.5.1 depends on crypto-random-0.0.9 which failed to install. xml-conduit-1.2.4 depends on resourcet-1.1.4.1 which failed to install. xml-hamlet-0.4.0.10 depends on resourcet-1.1.4.1 which failed to install. xss-sanitize-0.3.5.5 failed during the building phase. The exception was: ExitFailure 1 yaml-0.8.11 depends on resourcet-1.1.4.1 which failed to install. yesod-1.4.1.5 depends on xss-sanitize-0.3.5.5 which failed to install. yesod-auth-1.4.4 depends on xss-sanitize-0.3.5.5 which failed to install. yesod-core-1.4.9.1 depends on resourcet-1.1.4.1 which failed to install. yesod-default-1.2.0 depends on resourcet-1.1.4.1 which failed to install. yesod-form-1.4.4.1 depends on xss-sanitize-0.3.5.5 which failed to install. yesod-persistent-1.4.0.2 depends on resourcet-1.1.4.1 which failed to install. yesod-static-1.4.0.4 depends on resourcet-1.1.4.1 which failed to install. -- Regards, Peng