From bd7077c1cff6209984e8e31eafa484f73ceab86a Mon Sep 17 00:00:00 2001
From: Christian Schabesberger <chris.schabesberger@mailbox.org>
Date: Mon, 12 Sep 2016 00:56:20 +0200
Subject: [PATCH] fix rising exception for empty related videos

---
 .../services/youtube/YoutubeStreamExtractor.java      | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamExtractor.java b/app/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamExtractor.java
index aac94b355..824fe3b6c 100644
--- a/app/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamExtractor.java
+++ b/app/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamExtractor.java
@@ -668,10 +668,13 @@ public class YoutubeStreamExtractor extends StreamExtractor {
     public StreamPreviewInfoCollector getRelatedVideos() throws ParsingException {
         try {
             StreamPreviewInfoCollector collector = getStreamPreviewInfoCollector();
-            for (Element li : doc.select("ul[id=\"watch-related\"]").first().children()) {
-                // first check if we have a playlist. If so leave them out
-                if (li.select("a[class*=\"content-link\"]").first() != null) {
-                    collector.commit(extractVideoPreviewInfo(li));
+            Element ul = doc.select("ul[id=\"watch-related\"]").first();
+            if(ul != null) {
+                for (Element li : ul.children()) {
+                    // first check if we have a playlist. If so leave them out
+                    if (li.select("a[class*=\"content-link\"]").first() != null) {
+                        collector.commit(extractVideoPreviewInfo(li));
+                    }
                 }
             }
             return collector;