tcfail046.hs:4: No instance for class `PrelBase.Eq' at type `Process a' tcfail046.hs:4: No instance for class `PrelBase.Eq' at type `Process a' tcfail046.hs:4: No instance for class `PrelBase.Eq' at type `Process a' tcfail046.hs:4: No instance for class `PrelBase.Eq' at type `Process a' tcfail046.hs:23: No instance for: `PrelBase.Eq (Process taVO)' arising from use of `PrelBase.==' at tcfail046.hs:23 When checking methods of an instance declaration tcfail046.hs:15: No instance for: `PrelBase.Eq (Process taZ8)' arising from use of `PrelBase.==' at tcfail046.hs:15 When checking methods of an instance declaration Compilation had errors