diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 0833b17cd..bd4202cb3 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -6,7 +6,7 @@
         <option name="distributionType" value="LOCAL" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleHome" value="$APPLICATION_HOME_DIR$/gradle/gradle-2.4" />
-        <option name="gradleJvm" value="1.7" />
+        <option name="gradleJvm" value="1.8" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 1a3eaffb4..5d1998103 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -37,7 +37,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.7" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/.gitignore b/app/.gitignore
index a7d25c7ea..0d0d2abc0 100644
--- a/app/.gitignore
+++ b/app/.gitignore
@@ -1,3 +1,3 @@
 .gitignore
 /build
-
+#app/app.iml
diff --git a/app/app.iml b/app/app.iml
index eefc8deb7..58221a4e6 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -92,12 +92,12 @@
     </content>
     <orderEntry type="jdk" jdkName="Android API 23 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" exported="" name="rhino-1.7.7" level="project" />
     <orderEntry type="library" exported="" name="recyclerview-v7-23.1.0" level="project" />
-    <orderEntry type="library" exported="" name="support-annotations-23.1.0" level="project" />
-    <orderEntry type="library" exported="" name="appcompat-v7-23.1.0" level="project" />
-    <orderEntry type="library" exported="" name="design-23.1.0" level="project" />
     <orderEntry type="library" exported="" name="jsoup-1.8.3" level="project" />
     <orderEntry type="library" exported="" name="support-v4-23.1.0" level="project" />
+    <orderEntry type="library" exported="" name="rhino-1.7.7" level="project" />
+    <orderEntry type="library" exported="" name="design-23.1.0" level="project" />
+    <orderEntry type="library" exported="" name="appcompat-v7-23.1.0" level="project" />
+    <orderEntry type="library" exported="" name="support-annotations-23.1.0" level="project" />
   </component>
 </module>
\ No newline at end of file
diff --git a/app/src/main/java/org/schabi/newpipe/youtube/YoutubeExtractor.java b/app/src/main/java/org/schabi/newpipe/youtube/YoutubeExtractor.java
index 4cacde7c1..223b200e3 100644
--- a/app/src/main/java/org/schabi/newpipe/youtube/YoutubeExtractor.java
+++ b/app/src/main/java/org/schabi/newpipe/youtube/YoutubeExtractor.java
@@ -308,12 +308,9 @@ public class YoutubeExtractor implements Extractor {
 
     private VideoInfo.AudioStream[] parseDashManifest(String dashManifest, String decryptoinCode) {
         if(!dashManifest.contains("/signature/")) {
-            String encryptedSig = "";
+            String encryptedSig = matchGroup1("/s/([a-fA-F0-9\\.]+)", dashManifest);
             String decryptedSig;
 
-            //regex methods do not throw runtime exceptions, if their arguments are valid
-            encryptedSig = matchGroup1("/s/([a-fA-F0-9\\.]+)", dashManifest);
-
             decryptedSig = decryptSignature(encryptedSig, decryptoinCode);
             dashManifest = dashManifest.replace("/s/" + encryptedSig, "/signature/" + decryptedSig);
         }