Resolving dependencies... Error: cabal: Could not resolve dependencies: [__0] trying: hs-opentelemetry-sdk-0.1.0.0 (user goal) [__1] next goal: hs-opentelemetry-propagator-datadog (dependency of hs-opentelemetry-sdk) [__1] rejecting: hs-opentelemetry-propagator-datadog-0.0.0.0 (conflict: hs-opentelemetry-sdk==0.1.0.0, hs-opentelemetry-propagator-datadog => hs-opentelemetry-sdk>=0.0 && <0.1) [__1] fail (backjumping, conflict set: hs-opentelemetry-propagator-datadog, hs-opentelemetry-sdk) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: hs-opentelemetry-sdk, hs-opentelemetry-propagator-datadog