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Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: tensorflow-core-ops-0.2.0.1 (user goal)
[__1] trying: tensorflow-0.2.0.1 (dependency of tensorflow-core-ops)
[__2] trying: tensorflow-proto-0.2.0.0 (dependency of tensorflow)
[__3] next goal: proto-lens-protoc (dependency of tensorflow-proto)
[__3] rejecting: proto-lens-protoc-0.5.0.0, proto-lens-protoc-0.4.0.2,
proto-lens-protoc-0.4.0.1, proto-lens-protoc-0.4.0.0,
proto-lens-protoc-0.3.1.3, proto-lens-protoc-0.3.1.2,
proto-lens-protoc-0.3.1.1, proto-lens-protoc-0.3.1.0,
proto-lens-protoc-0.3.0.0 (conflict: tensorflow-proto =>
proto-lens-protoc>=0.2.2.1 && <0.3)
[__3] trying: proto-lens-protoc-0.2.2.3
[__4] next goal: base (dependency of tensorflow-core-ops)
[__4] rejecting: base-4.12.0.0/installed-4.1... (conflict: proto-lens-protoc
=> base>=4.8 && <4.11)
[__4] rejecting: base-4.12.0.0, base-4.11.1.0, base-4.11.0.0, base-4.10.1.0,
base-4.10.0.0, base-4.9.1.0, base-4.9.0.0, base-4.8.2.0, base-4.8.1.0,
base-4.8.0.0, base-4.7.0.2, base-4.7.0.1, base-4.7.0.0, base-4.6.0.1,
base-4.6.0.0, base-4.5.1.0, base-4.5.0.0, base-4.4.1.0, base-4.4.0.0,
base-4.3.1.0, base-4.3.0.0, base-4.2.0.2, base-4.2.0.1, base-4.2.0.0,
base-4.1.0.0, base-4.0.0.0, base-3.0.3.2, base-3.0.3.1 (constraint from
non-upgradeable package requires installed instance)
[__4] fail (backjumping, conflict set: base, proto-lens-protoc,
tensorflow-core-ops)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: proto-lens-protoc, tensorflow-proto,
base, tensorflow, tensorflow-core-ops