Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: grpc-haskell-0.1.0 (user goal)
[__1] next goal: proto3-suite (dependency of grpc-haskell)
[__1] rejecting: proto3-suite-0.4.1 (conflict: grpc-haskell =>
proto3-suite>=0.4.2.0)
[__1] skipping: proto3-suite-0.4.0.2, proto3-suite-0.4.0.0,
proto3-suite-0.3.0.0 (has the same characteristics that caused the previous
version to fail: excluded by constraint '>=0.4.2.0' from 'grpc-haskell')
[__1] fail (backjumping, conflict set: grpc-haskell, proto3-suite)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: grpc-haskell, proto3-suite