fix empty sequence

neo-project · Nov 2, 2020 · b700b94 · b700b94
1 parent d2a326a
commit b700b94
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/neo/SmartContract/Native/Designate/DesignateContract.cs b/src/neo/SmartContract/Native/Designate/DesignateContract.cs
@@ -36,7 +36,7 @@ public ECPoint[] GetDesignatedByRole(StoreView snapshot, Role role, uint index)
             byte[] boundary = CreateStorageKey((byte)role).ToArray();
             return snapshot.Storages.FindRange(key, boundary, SeekDirection.Backward)
                 .Select(u => u.Value.GetInteroperable<NodeList>().ToArray())
-                .First() ?? System.Array.Empty<ECPoint>();
+                .FirstOrDefault() ?? System.Array.Empty<ECPoint>();
         }
 
         [ContractMethod(0, CallFlags.AllowModifyStates)]