X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Fsoftware%2Fmatita%2FmatitaExcPp.ml;h=fa07a3d9e78b6969d9d57542eeadcdb5c4438a81;hb=96f76081892f6e66b246cae901d943e3331963ec;hp=24f25c5029d1c0941cd4aaae836ada8dda72bc75;hpb=c4c2dc8bc7fd9729ca43ff1ff484fca9ac7b963e;p=helm.git

diff --git a/helm/software/matita/matitaExcPp.ml b/helm/software/matita/matitaExcPp.ml
index 24f25c502..fa07a3d9e 100644
--- a/helm/software/matita/matitaExcPp.ml
+++ b/helm/software/matita/matitaExcPp.ml
@@ -152,6 +152,8 @@ let rec to_string =
      None, "NTypeChecker assert failure: " ^ Lazy.force msg
   | NCicEnvironment.ObjectNotFound msg ->
      None, "NCicEnvironment object not found: " ^ Lazy.force msg
+  | NCicEnvironment.AlreadyDefined msg ->
+     None, "NCicEnvironment already defined: " ^ Lazy.force msg
   | NCicRefiner.AssertFailure msg ->
      None, "NRefiner assert failure: " ^ Lazy.force msg
   | NCicEnvironment.BadDependency (msg,e) ->