Added the debug keystore manually, hope this fixes the travis build...

.travis.yml

@@ -15,7 +15,6 @@ install:
 before_cache:
   - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
   - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
-  - keytool -genkey -v -keystore ~/.android/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"
   
 cache:
   directories:

android/build.gradle

@@ -24,6 +24,16 @@ android {
         versionCode 169
         versionName "2.10.8"
     }
+    
+    signingConfigs {
+        debug {
+            storeFile rootProject.file('debug.keystore')
+            keyAlias 'androiddebugkey'
+            keyPassword 'android'
+            storePassword 'android'
+        }
+    }
+
     buildTypes {
         release {
             minifyEnabled false