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yesod-static 1.6.1.2 build failure: Could not deduce ‘ByteArray.ByteArrayAccess (Digest MD5)’ #1917
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Building library for yesod-static-1.6.1.2...
[1 of 7] Compiling Yesod.EmbeddedStatic.Types ( Yesod/EmbeddedStatic/Types.hs, dist/build/Yesod/EmbeddedStatic/Types.o, dist/build/Yesod/EmbeddedStatic/Types.dyn_o )
[2 of 7] Compiling Yesod.EmbeddedStatic.Generators ( Yesod/EmbeddedStatic/Generators.hs, dist/build/Yesod/EmbeddedStatic/Generators.o, dist/build/Yesod/EmbeddedStatic/Generators.dyn_o )
[3 of 7] Compiling Yesod.Static ( Yesod/Static.hs, dist/build/Yesod/Static.o, dist/build/Yesod/Static.dyn_o )
Yesod/Static.hs:414:22: error: [GHC-39999]
• Could not deduce ‘ByteArray.ByteArrayAccess (Digest MD5)’
arising from a use of ‘ByteArray.convert’
from the context: ByteArray.ByteArray bout
bound by the inferred type of
encode :: ByteArray.ByteArray bout => Digest MD5 -> bout
at Yesod/Static.hs:414:11-56
• In the expression: ByteArray.convert (d :: Digest MD5)
In an equation for ‘encode’:
encode d = ByteArray.convert (d :: Digest MD5)
In an equation for ‘base64md5File’:
base64md5File
= fmap (base64 . encode) . hashFile
where
encode d = ByteArray.convert (d :: Digest MD5)
|
414 | where encode d = ByteArray.convert (d :: Digest MD5)
| ^^^^^^^^^^^^^^^^^
Yesod/Static.hs:422:16: error: [GHC-39999]
• Could not deduce ‘ByteArray.ByteArrayAccess (Digest MD5)’
arising from a use of ‘ByteArray.convert’
from the context: ByteArray.ByteArray bout
bound by the inferred type of
encode :: ByteArray.ByteArray bout => Digest MD5 -> bout
at Yesod/Static.hs:422:5-50
• In the expression: ByteArray.convert (d :: Digest MD5)
In an equation for ‘encode’:
encode d = ByteArray.convert (d :: Digest MD5)
In an equation for ‘base64md5’:
base64md5 lbs
= base64
$ encode $ runConduitPure $ Conduit.sourceLazy lbs .| sinkHash
where
encode d = ByteArray.convert (d :: Digest MD5)
|
422 | encode d = ByteArray.convert (d :: Digest MD5)
Error: [Cabal-7125]
Dependencies:
- Decimal-0.5.2 (lib) (requires download & build)
- Diff-1.0.2 (lib) (requires download & build)
- OneTuple-0.4.2.1 (lib) (requires download & build)
- Only-0.1 (lib) (requires download & build)
- SHA-1.6.4.4 (lib) (requires download & build)
- StateVar-1.2.2 (lib) (requires download & build)
- appar-0.1.8 (lib:appar) (requires download & build)
- assoc-1.1.1 (lib) (requires download & build)
- attoparsec-0.14.4 (lib:attoparsec-internal) (requires download & build)
- base-compat-0.15.0 (lib) (requires download & build)
- base-orphans-0.9.4 (lib) (requires download & build)
- base16-bytestring-1.0.2.0 (lib) (requires download & build)
- base64-bytestring-1.2.1.0 (lib) (requires download & build)
- basement-0.0.16 (lib) (requires download & build)
- blaze-builder-0.4.4.1 (lib) (requires download & build)
- byteorder-1.0.4 (lib:byteorder) (requires download & build)
- call-stack-0.4.0 (lib) (requires download & build)
- cereal-0.5.8.3 (lib) (requires download & build)
- character-ps-0.1 (lib) (requires download & build)
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- cmdargs-0.10.22 (lib) (requires download & build)
- colour-2.3.7 (lib) (requires download & build)
- control-monad-free-0.6.2 (lib) (requires download & build)
- cryptohash-md5-0.11.101.0 (lib) (requires download & build)
- csv-0.1.2 (lib:csv) (requires download & build)
- data-default-0.8.0.2 (lib) (requires download & build)
- dlist-1.0 (lib) (requires download & build)
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- entropy-0.4.1.11 (lib:entropy) (requires download & build)
- extensible-exceptions-0.1.1.4 (lib:extensible-exceptions) (requires download & build)
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- half-0.3.3 (lib) (requires download & build)
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- hourglass-0.2.12 (lib) (requires download & build)
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- iproute-1.7.15 (lib) (requires download & build)
- crypton-socks-0.6.2 (lib) (requires download & build)
- unix-time-0.4.17 (lib:unix-time) (requires download & build)
- megaparsec-9.7.0 (lib) (requires download & build)
- attoparsec-0.14.4 (lib) (requires download & build)
- text-iso8601-0.1.1.1 (lib) (requires download & build)
- text-ansi-0.3.0.1 (lib) (requires download & build)
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- uuid-types-1.0.6.1 (lib) (requires download & build)
- temporary-1.3 (lib) (requires download & build)
- retry-0.9.3.1 (lib) (requires download & build)
- QuickCheck-2.18.0.0 (lib) (requires download & build)
- comonad-5.0.10 (lib) (requires download & build)
- monad-control-1.0.3.1 (lib) (requires download & build)
- lucid-2.11.20250303 (lib) (requires download & build)
- math-functions-0.3.4.4 (lib) (requires download & build)
- indexed-traversable-instances-0.1.2.1 (lib) (requires download & build)
- hashtables-1.4.2 (lib) (requires download & build)
- asn1-encoding-0.9.6 (lib) (requires download & build)
- prettyprinter-ansi-terminal-1.1.3 (lib) (requires download & build)
- streaming-commons-0.2.3.1 (lib) (requires download & build)
- serialise-0.2.6.1 (lib) (requires download & build)
- crypton-pem-0.3.0 (lib) (requires download & build)
- crypton-asn1-types-0.4.1 (lib) (requires download & build)
- crypton-1.1.2 (lib) (requires download & build)
- cassava-0.5.4.1 (lib) (requires download & build)
- encoding-0.10.2 (lib) (requires download & build)
- http-api-data-0.7 (lib) (requires download & build)
- bifunctors-5.6.3 (lib) (requires download & build)
- witherable-0.5 (lib) (requires download & build)
- crypto-pubkey-types-0.4.3 (lib:crypto-pubkey-types) (requires download & build)
- pretty-simple-4.1.4.0 (lib) (requires download & build)
- optparse-applicative-0.19.0.0 (lib) (requires download & build)
- http-client-0.7.19 (lib) (requires download & build)
- crypton-asn1-parse-0.10.0 (lib) (requires download & build)
- crypton-asn1-encoding-0.10.0 (lib) (requires download & build)
- mlkem-0.2.0.0 (lib) (requires download & build)
- hpke-0.1.0 (lib) (requires download & build)
- cassava-megaparsec-2.1.1 (lib) (requires download & build)
- semigroupoids-6.0.2 (lib) (requires download & build)
- profunctors-5.6.3 (lib) (requires download & build)
- RSA-2.4.1 (lib) (requires download & build)
- tasty-1.5.4 (lib) (requires download & build)
- crypton-x509-1.9.0 (lib) (requires download & build)
- semialign-1.3.1.1 (lib) (requires download & build)
- modern-uri-0.3.6.1 (lib) (requires download & build)
- authenticate-oauth-1.7 (lib) (requires download & build)
- tasty-hunit-0.10.2 (lib) (requires download & build)
- crypton-x509-store-1.9.0 (lib) (requires download & build)
- aeson-2.2.4.1 (lib) (requires download & build)
- crypton-x509-validation-1.9.0 (lib) (requires download & build)
- crypton-x509-system-1.9.0 (lib) (requires download & build)
- shakespeare-2.2.0 (lib) (requires download & build)
- aeson-pretty-0.8.10 (lib) (requires download & build)
- tls-2.4.1 (lib) (requires download & build)
- hledger-lib-1.99 (lib) (first run)
- crypton-connection-0.4.6 (lib) (requires download & build)
- http-client-tls-0.4.0 (lib) (requires download & build)
- req-3.13.4 (lib) (requires download & build)
- hledger-1.99 (lib) (first run)
- hledger-1.99 (exe:hledger) (first run)
- HUnit-1.6.2.0 (lib) (requires download & build)
- alex-3.5.4.2 (exe:alex) (requires download & build)
- attoparsec-aeson-2.2.2.0 (lib) (requires download & build)
- auto-update-0.2.6 (lib) (requires download & build)
- base-unicode-symbols-0.2.4.2 (lib:base-unicode-symbols) (requires download & build)
- bitvec-1.1.6.0 (lib) (requires download & build)
- bsb-http-chunked-0.0.0.4 (lib) (requires download & build)
- byteable-0.1.1 (lib) (requires download & build)
- cabal-doctest-1.0.12 (lib) (requires download & build)
- css-text-0.1.3.0 (lib) (requires download & build)
- easy-file-0.2.5 (lib) (requires download & build)
- email-validate-2.3.2.21 (lib) (requires download & build)
- happy-lib-2.2 (lib:grammar) (requires download & build)
- haskell-lexer-1.2.1 (lib) (requires download & build)
- hspec-discover-2.11.17 (lib) (requires download & build)
- http-date-0.0.11 (lib) (requires download & build)
- libyaml-clib-0.2.5 (lib) (requires download & build)
- lift-type-0.1.2.0 (lib) (requires download & build)
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- recv-0.1.1 (lib) (requires download & build)
- replace-megaparsec-1.5.0.1 (lib) (requires download & build)
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- happy-lib-2.2 (lib:frontend) (requires download & build)
- network-control-0.1.7 (lib) (requires download & build)
- clientsession-0.9.3.0 (lib) (requires download & build)
- xss-sanitize-0.3.7.2 (lib) (requires download & build)
- http-semantics-0.4.0 (lib) (requires download & build)
- wai-3.2.4 (lib) (requires download & build)
- hspec-core-2.11.17 (lib) (requires download & build)
- mono-traversable-1.0.21.0 (lib) (requires download & build)
- happy-lib-2.2 (lib:backend-lalr) (requires download & build)
- happy-lib-2.2 (lib:backend-glr) (requires download & build)
- http2-5.4.0 (lib) (requires download & build)
- wai-logger-2.5.0 (lib) (requires download & build)
- wai-cors-0.2.7 (lib) (requires download & build)
- hspec-2.11.17 (lib) (requires download & build)
- conduit-1.3.6.1 (lib) (requires download & build)
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- happy-2.2 (exe:happy) (requires download & build)
- wai-handler-launch-3.0.3.1 (lib:wai-handler-launch) (requires download & build)
- wai-extra-3.1.18 (lib) (requires download & build)
- yaml-0.11.11.2 (lib) (requires download & build)
- xml-conduit-1.10.1.0 (lib:xml-conduit) (requires download & build)
- monad-logger-0.3.42 (lib) (requires download & build)
- http-conduit-2.3.9.1 (lib) (requires download & build)
- crypton-conduit-0.3.0 (lib) (requires download & build)
- pretty-show-1.10 (lib) (requires download & build)
- language-javascript-0.7.1.0 (lib) (requires download & build)
- wai-app-static-3.2.1 (lib) (requires download & build)
- html-conduit-1.3.2.2 (lib) (requires download & build)
- yesod-core-1.6.29.1 (lib) (requires download & build)
- persistent-2.18.1.0 (lib) (requires download & build)
- hjsmin-0.2.1 (lib) (requires download & build)
- yesod-test-1.7.0.1 (lib) (requires download & build)
- yesod-persistent-1.6.0.8 (lib) (requires download & build)
- yesod-static-1.6.1.2 (lib) (requires download & build)
- yesod-form-1.7.9.2 (lib) (requires download & build)
- yesod-1.6.2.1 (lib) (requires download & build)
- hledger-web-1.99 (lib) (first run)
- hledger-web-1.99 (exe:hledger-web) (first run)
Both memory and its replacement ram are in this set, and both provide ByteArrayAccess. Perhaps yesod-static needs to specify ram (or memory) explicitly when importing, with PackageImports ?
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simonmichael commentedon May 1, 2026
PS: a workaround is to add this in cabal.project:
;pkg: work around a yesod-static bounds bug, in cabal builds
;pkg: cabal build workarounds: try to fix syntax
peti commentedon Jun 9, 2026
We have run into the same problem trying to package yesod-static for openSUSE Tumbleweed. It would be great if there were a fix for this issue on Hackage.
peti commentedon Jun 9, 2026
I think the problem is that
crypton-1.1.4now usesraminstead ofmemory, which is fundamentally incompatible with the current version ofyesod-static.ghc-9.12.x: don't update crypton-connection to 0.4.6
leftaroundabout commentedon Jun 12, 2026
@peti I don't think it's fundamentally incompatible, it just requires importing the module that actually contains the corresponding instances. Cf. #1916
peti commentedon Jun 22, 2026
You are right. Your PR fixes this issue. Thank you very much.
juhp commentedon Jun 29, 2026
Maybe related the testsuite also fails to compile:
Note that Stackage is moving to crypton-1.1 now
yesod-static tests fail with ram (yesodweb/yesod#1917)
disable yesod-static (yesodweb/yesod#1917)
simonmichael commentedon Aug 27, 2026
This has been broken for 4 months.. what can we do to help ?
pkg: web: drop yesod-static & hjsmin deps
pkg: web: drop yesod-static & hjsmin deps
pkg: web: drop yesod-static & hjsmin deps