Resolving dependencies...
cabal: Could not resolve dependencies:
trying: base-4.10.1.0/installed-4.1... (dependency of
ihaskell-diagrams-0.3.1.1)
trying: transformers-0.5.2.0/installed-0.5... (dependency of linear-1.20.7)
next goal: zeromq4-haskell (dependency of ipython-kernel-0.9.0.1)
rejecting: zeromq4-haskell-0.7.0, zeromq4-haskell-0.6.7,
zeromq4-haskell-0.6.6, zeromq4-haskell-0.6.5, zeromq4-haskell-0.6.4,
zeromq4-haskell-0.6.3 (conflict: requires pkg-config package libzmq>=4.0 &&
<5.0, not found in the pkg-config database)
rejecting: zeromq4-haskell-0.6.2, zeromq4-haskell-0.6.1, zeromq4-haskell-0.6
(conflict: exceptions==0.8.3, zeromq4-haskell => exceptions==0.6.*)
rejecting: zeromq4-haskell-0.5.1 (conflict: exceptions==0.8.3, zeromq4-haskell
=> exceptions>=0.4 && <0.6)
rejecting: zeromq4-haskell-0.5, zeromq4-haskell-0.4.1 (conflict: requires
pkg-config package libzmq>=4.0 && <5.0, not found in the pkg-config database)
rejecting: zeromq4-haskell-0.4 (conflict: exceptions==0.8.3, zeromq4-haskell
=> exceptions==0.4.*)
rejecting: zeromq4-haskell-0.3.2 (conflict: exceptions==0.8.3, zeromq4-haskell
=> exceptions==0.3.*)
rejecting: zeromq4-haskell-0.3.1, zeromq4-haskell-0.3 (conflict: requires
pkg-config package libzmq>=4.0 && <5.0, not found in the pkg-config database)
trying: zeromq4-haskell-0.2
next goal: MonadCatchIO-transformers (dependency of zeromq4-haskell-0.2)
rejecting: MonadCatchIO-transformers-0.3.1.3 (conflict:
base==4.10.1.0/installed-4.1..., MonadCatchIO-transformers => base<4.9)
rejecting: MonadCatchIO-transformers-0.3.1.2,
MonadCatchIO-transformers-0.3.1.1, MonadCatchIO-transformers-0.3.1.0
(conflict: base==4.10.1.0/installed-4.1..., MonadCatchIO-transformers =>
base<4.8)
rejecting: MonadCatchIO-transformers-0.3.0.0,
MonadCatchIO-transformers-0.2.2.3, MonadCatchIO-transformers-0.2.2.2,
MonadCatchIO-transformers-0.2.2.1, MonadCatchIO-transformers-0.2.2.0,
MonadCatchIO-transformers-0.2.1.0, MonadCatchIO-transformers-0.2.0.0
(conflict: base==4.10.1.0/installed-4.1..., MonadCatchIO-transformers =>
base<4.7)
rejecting: MonadCatchIO-transformers-0.1.0.1 (conflict:
transformers==0.5.2.0/installed-0.5..., MonadCatchIO-transformers =>
transformers==0.1.*)
rejecting: MonadCatchIO-transformers-0.1.0.0,
MonadCatchIO-transformers-0.0.2.0, MonadCatchIO-transformers-0.0.1.0
(conflict: transformers==0.5.2.0/installed-0.5..., MonadCatchIO-transformers
=> transformers<0.2)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).