From 2252ec50085c151e7998ca9a30cda6a33ee862b6 Mon Sep 17 00:00:00 2001
From: Gregory Sanders <gsanders87@gmail.com>
Date: Tue, 14 Aug 2018 14:28:29 -0400
Subject: [PATCH] Allow ConstructTransaction to not throw error with 0-input
 txn

---
 src/rpc/rawtransaction.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index 608a1b5da..314184ab0 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -436,7 +436,7 @@ CMutableTransaction ConstructTransaction(const UniValue& inputs_in, const UniVal
         }
     }
 
-    if (!rbf.isNull() && rbfOptIn != SignalsOptInRBF(rawTx)) {
+    if (!rbf.isNull() && rawTx.vin.size() > 0 && rbfOptIn != SignalsOptInRBF(rawTx)) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter combination: Sequence number(s) contradict replaceable option");
     }