Resolving dependencies... cabal: Could not resolve dependencies: trying: base-4.9.0.0/installed-4.9... (dependency of twidge-1.0.6.1) trying: deepseq-1.4.2.0/installed-1.4... (dependency of bytestring-0.10.8.1/installed-0.1...) next goal: hoauth (dependency of twidge-1.0.6.1) rejecting: hoauth-0.3.5, hoauth-0.3.4, hoauth-0.3.3, hoauth-0.3.2.1, hoauth-0.3.2, hoauth-0.3.1, hoauth-0.3.0, hoauth-0.2.5, hoauth-0.2.4 (conflict: twidge => hoauth>=0.2.3 && <0.2.4) trying: hoauth-0.2.3 next goal: dataenc (dependency of hoauth-0.2.3) rejecting: dataenc-0.14.0.7 (conflict: base==4.9.0.0/installed-4.9..., dataenc => base>=3.0.0 && <4.8) rejecting: dataenc-0.14.0.6, dataenc-0.14.0.5, dataenc-0.14.0.4, dataenc-0.14.0.3 (conflict: deepseq => array==0.5.1.1/installed-0.5..., dataenc => array>=0.1.0 && <0.5) rejecting: dataenc-0.14.0.2, dataenc-0.14, dataenc-0.13.0.5, dataenc-0.13.0.4, dataenc-0.13.0.3, dataenc-0.13.0.2 (conflict: deepseq => array==0.5.1.1/installed-0.5..., dataenc => array>=0.1.0 && <0.4) rejecting: dataenc-0.13.0.1, dataenc-0.13.0.0, dataenc-0.12.1.0, dataenc-0.12, dataenc-0.11.1, dataenc-0.11, dataenc-0.10.2, dataenc-0.10.1, dataenc-0.9 (conflict: hoauth => dataenc>=0.13.0.2) Dependency tree exhaustively searched.