Add clone for error expression. Fixes #13443

[mono.git] / mcs / mcs / expression.cs

diff --git a/mcs/mcs/expression.cs b/mcs/mcs/expression.cs
index 7dd42aa141f208c66607d59477a481c6c33cbccb..d02603f90f2f399ae00741ee76ad519ffd692e01 100644 (file)
--- a/mcs/mcs/expression.cs
+++ b/mcs/mcs/expression.cs
@@ -1662,8 +1662,10 @@ namespace Mono.CSharp
                                return this;
                        }
 
-                       ec.Report.Error (39, loc, "Cannot convert type `{0}' to `{1}' via a built-in conversion",
-                               etype.GetSignatureForError (), type.GetSignatureForError ());
+                       if (etype != InternalType.ErrorType) {
+                               ec.Report.Error (39, loc, "Cannot convert type `{0}' to `{1}' via a built-in conversion",
+                                       etype.GetSignatureForError (), type.GetSignatureForError ());
+                       }
 
                        return null;
                }