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T13555.hs:25:14: error:
• Couldn't match type ‘k0’ with ‘k2’
because type variable ‘k2’ would escape its scope
This (rigid, skolem) type variable is bound by
the type signature for:
crtInfo :: forall k2 (m :: k2).
Reflects m Int =>
TaggedT m Maybe (CRTInfo (GF fp d))
at T13555.hs:25:14-79
Expected type: TaggedT m Maybe (CRTInfo (GF fp d))
Actual type: TaggedT m0 Maybe (CRTInfo (GF fp d))
• When checking that instance signature for ‘crtInfo’
is more general than its signature in the class
Instance sig: forall (m :: k0).
Reflects m Int =>
TaggedT m Maybe (CRTInfo (GF fp d))
Class sig: forall k2 (m :: k2).
Reflects m Int =>
TaggedT m Maybe (CRTInfo (GF fp d))
In the instance declaration for ‘CRTrans Maybe (GF fp d)’
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