❯ cabal update && cabal install ghcid
Downloading the latest package list from hackage.haskell.org
Package list of hackage.haskell.org is up to date at index-state 2022-06-07T03:04:40Z
Resolving dependencies...
Build profile: -w ghc-9.0.2 -O1
In order, the following will be built (use -v for more details):
 - ghcid-0.8.7 (lib) (requires download & build)
 - ghcid-0.8.7 (exe:ghcid) (requires download & build)
Downloading  ghcid-0.8.7
Downloaded   ghcid-0.8.7
Starting     ghcid-0.8.7 (lib)
Starting     ghcid-0.8.7 (exe:ghcid)
Building     ghcid-0.8.7 (lib)
Building     ghcid-0.8.7 (exe:ghcid)

Failed to build ghcid-0.8.7.
Build log (
/home/rush/.cabal/logs/ghc-9.0.2/ghcid-0.8.7-4a416ee21de427ae619a0358626326974b65b72e224415e8be48aab9df3fe9c2.log
):
Warning: ghcid.cabal:1:28: Packages with 'cabal-version: 1.12' or later should
specify a specific version of the Cabal spec of the form 'cabal-version: x.y'.
Use 'cabal-version: 1.18'.
Configuring library for ghcid-0.8.7..
Preprocessing library for ghcid-0.8.7..
Building library for ghcid-0.8.7..
[1 of 6] Compiling Language.Haskell.Ghcid.Escape ( src/Language/Haskell/Ghcid/Escape.hs, dist/build/Language/Haskell/Ghcid/Escape.o, dist/build/Language/Haskell/Ghcid/Escape.dyn_o )

src/Language/Haskell/Ghcid/Escape.hs:11:1: error:
    Could not find module ‘Data.Char’
    There are files missing in the ‘base-4.15.1.0’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
11 | import Data.Char
   | ^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:12:1: error:
    Could not find module ‘Data.Either.Extra’
    There are files missing in the ‘extra-1.7.10’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
12 | import Data.Either.Extra
   | ^^^^^^^^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:13:1: error:
    Could not find module ‘Data.List.Extra’
    There are files missing in the ‘extra-1.7.10’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
13 | import Data.List.Extra
   | ^^^^^^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:14:1: error:
    Could not find module ‘Data.Maybe’
    There are files missing in the ‘base-4.15.1.0’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
14 | import Data.Maybe
   | ^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:15:1: error:
    Could not find module ‘Data.Tuple.Extra’
    There are files missing in the ‘extra-1.7.10’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
15 | import Data.Tuple.Extra
   | ^^^^^^^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:16:1: error:
    Could not find module ‘Control.Applicative’
    There are files missing in the ‘base-4.15.1.0’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
16 | import Control.Applicative
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:17:1: error:
    Could not find module ‘Prelude’
    There are files missing in the ‘base-4.15.1.0’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
17 | import Prelude
   | ^^^^^^^^^^^^^^

Failed to build exe:ghcid from ghcid-0.8.7.
Build log (
/home/rush/.cabal/logs/ghc-9.0.2/ghcid-0.8.7-e-ghcid-5031875464358456bd8a9abf6bfee1a2aa0bf3ec6321a47b77b82bfc914404f8.log
):
Warning: ghcid.cabal:1:28: Packages with 'cabal-version: 1.12' or later should
specify a specific version of the Cabal spec of the form 'cabal-version: x.y'.
Use 'cabal-version: 1.18'.
Configuring executable 'ghcid' for ghcid-0.8.7..
Preprocessing executable 'ghcid' for ghcid-0.8.7..
Building executable 'ghcid' for ghcid-0.8.7..
[ 1 of 10] Compiling Language.Haskell.Ghcid.Escape ( src/Language/Haskell/Ghcid/Escape.hs, dist/build/ghcid/ghcid-tmp/Language/Haskell/Ghcid/Escape.o )

src/Language/Haskell/Ghcid/Escape.hs:11:1: error:
    Could not find module ‘Data.Char’
    There are files missing in the ‘base-4.15.1.0’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
11 | import Data.Char
   | ^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:12:1: error:
    Could not find module ‘Data.Either.Extra’
    There are files missing in the ‘extra-1.7.10’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
12 | import Data.Either.Extra
   | ^^^^^^^^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:13:1: error:
    Could not find module ‘Data.List.Extra’
    There are files missing in the ‘extra-1.7.10’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
13 | import Data.List.Extra
   | ^^^^^^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:14:1: error:
    Could not find module ‘Data.Maybe’
    There are files missing in the ‘base-4.15.1.0’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
14 | import Data.Maybe
   | ^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:15:1: error:
    Could not find module ‘Data.Tuple.Extra’
    There are files missing in the ‘extra-1.7.10’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
15 | import Data.Tuple.Extra
   | ^^^^^^^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:16:1: error:
    Could not find module ‘Control.Applicative’
    There are files missing in the ‘base-4.15.1.0’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
16 | import Control.Applicative
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^

src/Language/Haskell/Ghcid/Escape.hs:17:1: error:
    Could not find module ‘Prelude’
    There are files missing in the ‘base-4.15.1.0’ package,
    try running 'ghc-pkg check'.
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
   |
17 | import Prelude
   | ^^^^^^^^^^^^^^
cabal: Failed to build ghcid-0.8.7. See the build log above for details.
Failed to build exe:ghcid from ghcid-0.8.7. See the build log above for
details.