Resolving dependencies... cabal: Could not resolve dependencies: next goal: SVGFonts (user goal) rejecting: SVGFonts-1.5.0.0, 1.4.0.3, 1.4.0.2, 1.4.0.1, 1.4, 1.3.0.2, 1.3.0.1, 1.3, 1.2.1, 1.2, 1.1.2, 1.1.1, 1.1, 1.0, 0.4 (global constraint requires ==0.3) trying: SVGFonts-0.3 trying: base-4.8.1.0/installed-4f7... (dependency of SVGFonts-0.3) next goal: bytestring (dependency of SVGFonts-0.3) rejecting: bytestring-0.10.6.0/installed-236..., 0.10.6.0, 0.10.4.1, 0.10.4.0, 0.10.2.0, 0.10.0.2, 0.10.0.1, 0.10.0.0, 0.9.2.1, 0.9.2.0 (conflict: SVGFonts => bytestring==0.9.1.*) rejecting: bytestring-0.9.1.10, 0.9.1.9, 0.9.1.8, 0.9.1.7, 0.9.1.6, 0.9.1.5 (conflict: base==4.8.1.0/installed-4f7..., bytestring => base<4.4) rejecting: bytestring-0.9.1.4, 0.9.1.3, 0.9.1.2, 0.9.1.1, 0.9.1.0 (conflict: base==4.8.1.0/installed-4f7..., bytestring => base<4.2) rejecting: bytestring-0.9.0.4, 0.9.0.3, 0.9.0.2, 0.9.0.1, 0.9 (conflict: SVGFonts => bytestring==0.9.1.*) Dependency tree exhaustively searched.