DocBuilder does not support internal libraries; fails with ` installed package info from too old version of Cabal`

[andreasabel]

See https://hackage.haskell.org/package/hackage-cli-0.0.3.6/reports/1 :

hackage-cli-0.0.3.6-3Rg1GQuFChSdTyrpYySQ1 failed during the final install step. 
The exception was:
dieVerbatim: user error (cabal: '/opt/ghc/bin/ghc-pkg' exited with an error:
z-hackage-cli-z-cabal-revisions-0.0.3.6: 
installed package info from too old version of Cabal 
(key field does not match id field)
)

I have no clue what that means...