From 7c18b33f99c193a9a50c52a5bbfc4cebe35b9457 Mon Sep 17 00:00:00 2001
From: Andrew Sliwinski <andrewsliwinski@acm.org>
Date: Mon, 30 Jan 2017 14:32:32 -0500
Subject: [PATCH] Continue import if opcode is not found during SB2 import.
 Resolves GH-413

---
 src/import/sb2import.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/import/sb2import.js b/src/import/sb2import.js
index 96009abb8..13983d569 100644
--- a/src/import/sb2import.js
+++ b/src/import/sb2import.js
@@ -193,6 +193,7 @@ var parseBlockList = function (blockList) {
     for (var i = 0; i < blockList.length; i++) {
         var block = blockList[i];
         var parsedBlock = parseBlock(block);
+        if (typeof parsedBlock === 'undefined') continue;
         if (previousBlock) {
             parsedBlock.parent = previousBlock.id;
             previousBlock.next = parsedBlock.id;