Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hprotoc (user goal)
rejecting: hprotoc-2.1.7, 2.1.6, 2.1.5, 2.1.4, 2.1.3, 2.1.2, 2.1.0, 2.0.17,
2.0.15, 2.0.14, 2.0.13, 2.0.12, 2.0.11 (global constraint requires ==2.0.10)
trying: hprotoc-2.0.10
trying: base-4.8.1.0/installed-4f7... (dependency of hprotoc-2.0.10)
next goal: protocol-buffers (dependency of hprotoc-2.0.10)
rejecting: protocol-buffers-2.1.7, 2.1.6, 2.1.5, 2.1.4, 2.1.3, 2.1.2, 2.1.1,
2.1.0, 2.0.17, 2.0.14, 2.0.12, 2.0.11 (conflict: hprotoc =>
protocol-buffers==2.0.10)
trying: protocol-buffers-2.0.10
rejecting: protocol-buffers-2.0.10:+small_base (conflict:
base==4.8.1.0/installed-4f7..., protocol-buffers-2.0.10:small_base =>
base>=4.5 && <4.7)
rejecting: protocol-buffers-2.0.10:-small_base (conflict:
base==4.8.1.0/installed-4f7..., protocol-buffers-2.0.10:small_base =>
base==3.*)
Dependency tree exhaustively searched.