Index: src/ResolvExpr/Resolver.cc
===================================================================
--- src/ResolvExpr/Resolver.cc	(revision 552775975b142e0bb26e33a21d776351992df048)
+++ src/ResolvExpr/Resolver.cc	(revision 5248789584c9c07a822b2094bcabd99fea266d92)
@@ -583,4 +583,6 @@
 									ss << "' to '";
 									arg.expr->get_result()->print( ss );
+									ss << "' with env '";
+									resultEnv.print(ss);
 									ss << "'\n";
 									SemanticError( function, ss.str() );