test
diff --git a/.travis.yml b/.travis.yml
index 5f3fe73..b30fcdd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -46,6 +46,7 @@
         echo "ndk.dir=$ANDROID_NDK_HOME" > android/local.properties
         ;;
       "ios")
+        apt-get install tree -y
         npm install
         cd ios && pod install --repo-update
         ;;
@@ -63,10 +64,11 @@
         ;;
       "ios")
         echo "ios/Pods/WeexSDK/weex_core/Source/core/common/view_utils.h"
-        cat ios/Pods/WeexSDK/weex_core/Source/core/common/view_utils.h | while read line
-        do
-            echo $line
-        done
+        tree
+        # cat ios/Pods/WeexSDK/weex_core/Source/core/common/view_utils.h | while read line
+        # do
+        #     echo $line
+        # done
 
         hasIosFile=$(npm run danger -- run --dangerfile ./dangerfile-ios.js)
         echo "The value of hasIosFile is ${hasIosFile}"
diff --git a/ios/WeexDemo/extend/component/WXSelectComponent.h b/ios/WeexDemo/extend/component/WXSelectComponent.h
index b4cacce..f9a4776 100644
--- a/ios/WeexDemo/extend/component/WXSelectComponent.h
+++ b/ios/WeexDemo/extend/component/WXSelectComponent.h
@@ -24,4 +24,3 @@
 
 @end
 
-