purescript-0.15.13: tests/purs/failing/ClassHeadNoVTA7.out
Error found:
in module [33mClassHeadNoVTA7[0m
at tests/purs/failing/ClassHeadNoVTA7.purs:12:8 - 12:26 (line 12, column 8 - line 12, column 26)
No type class instance was found for
[33m [0m
[33m ClassHeadNoVTA7.TestClass t1[0m
[33m t2[0m
[33m [0m
The instance head contains unknown type variables. Consider adding a type annotation.
while applying a function [33mtestMethod[0m
of type [33mTestClass @t0 t1 t2 => Maybe t1 -> Int[0m
to argument [33mNothing[0m
while checking that expression [33mtestMethod Nothing[0m
has type [33mInt[0m
in value declaration [33mtest[0m
where [33mt0[0m is an unknown type
[33mt1[0m is an unknown type
[33mt2[0m is an unknown type
See https://github.com/purescript/documentation/blob/master/errors/NoInstanceFound.md for more information,
or to contribute content related to this error.