Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: network-run-0.0.0 (user goal)
[__1] next goal: network (dependency of network-run)
[__1] rejecting: network-3.1.0.1, network-3.1.0.0, network-3.0.1.1,
network-3.0.1.0, network-3.0.0.1, network-3.0.0.0, network-2.8.0.1,
network-2.8.0.0, network-2.7.0.2, network-2.7.0.1, network-2.7.0.0,
network-2.6.3.6, network-2.6.3.5, network-2.6.3.3, network-2.6.3.2,
network-2.6.3.1, network-2.6.3.0, network-2.6.2.1, network-2.6.2.0,
network-2.6.1.0, network-2.6.0.2, network-2.6.0.1, network-2.6.0.0,
network-2.5.0.0, network-2.4.2.3, network-2.4.2.2, network-2.4.2.1,
network-2.4.2.0, network-2.4.1.2, network-2.4.1.1, network-2.4.1.0,
network-2.4.0.1, network-2.4.0.0, network-2.3.2.1, network-2.3.2.0,
network-2.3.1.1, network-2.3.1.0, network-2.3.0.14, network-2.3.0.13,
network-2.3.0.12, network-2.3.0.11, network-2.3.0.10, network-2.3.0.9,
network-2.3.0.8, network-2.3.0.7, network-2.3.0.6, network-2.3.0.5,
network-2.3.0.4, network-2.3.0.3, network-2.3.0.2, network-2.3.0.1,
network-2.3, network-2.2.3.1, network-2.2.3, network-2.2.1.10,
network-2.2.1.9, network-2.2.1.8, network-2.2.1.7, network-2.2.1.6,
network-2.2.1.5, network-2.2.1.4, network-2.2.1.3, network-2.2.1.2,
network-2.2.1.1, network-2.2.1, network-2.2.0.1, network-2.2.0.0,
network-2.1.0.0, network-2.0, network-2.6.3.4 (conflict: network-run =>
network>=3.1.1)
[__1] fail (backjumping, conflict set: network, network-run)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: network-run, network