X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2FmatitaExcPp.ml;h=24f25c5029d1c0941cd4aaae836ada8dda72bc75;hb=c4c2dc8bc7fd9729ca43ff1ff484fca9ac7b963e;hp=126b78b89fc6702d08eff63a14a1708d172c64d9;hpb=55274856efac172aba293d4216fdc659d07a89d7;p=helm.git

diff --git a/helm/software/matita/matitaExcPp.ml b/helm/software/matita/matitaExcPp.ml
index 126b78b89..24f25c502 100644
--- a/helm/software/matita/matitaExcPp.ml
+++ b/helm/software/matita/matitaExcPp.ml
@@ -159,6 +159,8 @@ let rec to_string =
      snd (to_string e)
   | NCicEnvironment.BadConstraint msg ->
      None, "NCicEnvironment bad constraint: " ^ Lazy.force msg
+  | NCicUnification.UnificationFailure msg ->
+     None, "NCicUnification failure: " ^ Lazy.force msg
   | CicTypeChecker.TypeCheckerFailure msg ->
      None, "Type checking error: " ^ Lazy.force msg
   | CicTypeChecker.AssertFailure msg ->