1 files changed, 9 insertions, 0 deletions
diff --git a/crypto/src/asn1/BerSet.cs b/crypto/src/asn1/BerSet.cs
index 3a1163fcb..5d61db6aa 100644
--- a/crypto/src/asn1/BerSet.cs
+++ b/crypto/src/asn1/BerSet.cs
@@ -1,3 +1,7 @@
+using System;
+
+using Org.BouncyCastle.Utilities;
+
 namespace Org.BouncyCastle.Asn1
 {
     public class BerSet
@@ -44,6 +48,11 @@ namespace Org.BouncyCastle.Asn1
         {
         }
 
+        internal override int EncodedLength(bool withID)
+        {
+            throw Platform.CreateNotImplementedException("BerSet.EncodedLength");
+        }
+
         internal override void Encode(Asn1OutputStream asn1Out, bool withID)
         {
             if (asn1Out.IsBer)