Resolving dependencies...
cabal: Could not resolve dependencies:
trying: base-4.9.0.0/installed-4.9... (dependency of Hayoo-1.2.3)
next goal: vector-algorithms (dependency of snap-server-0.7.0.1)
rejecting: vector-algorithms-0.7.0.1, vector-algorithms-0.7,
vector-algorithms-0.6.0.4, vector-algorithms-0.6.0.3,
vector-algorithms-0.6.0.2, vector-algorithms-0.6.0.1 (conflict: snap-server =>
vector-algorithms>=0.4 && <0.6)
trying: vector-algorithms-0.5.4.2
next goal: primitive (dependency of vector-algorithms-0.5.4.2)
rejecting: primitive-0.6.1.0 (conflict: vector-algorithms => primitive>=0.3 &&
<0.6)
rejecting: primitive-0.5.4.0 (conflict: base==4.9.0.0/installed-4.9...,
primitive => base>=4.3 && <4.9)
rejecting: primitive-0.5.3.0, primitive-0.5.2.1 (conflict:
base==4.9.0.0/installed-4.9..., primitive => base>=4.3 && <4.8)
rejecting: primitive-0.5.1.0 (conflict: base==4.9.0.0/installed-4.9...,
primitive => base>=4 && <4.8)
rejecting: primitive-0.5.0.1, primitive-0.5, primitive-0.4.1,
primitive-0.4.0.1, primitive-0.4, primitive-0.3.1, primitive-0.3 (conflict:
base==4.9.0.0/installed-4.9..., primitive => base>=4 && <4.7)
rejecting: primitive-0.2.1, primitive-0.2, primitive-0.1, primitive-0.6
(conflict: vector-algorithms => primitive>=0.3 && <0.6)
Dependency tree exhaustively searched.