update
diff --git a/.travis.yml b/.travis.yml
index b30fcdd..be5cd8c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -46,7 +46,6 @@
         echo "ndk.dir=$ANDROID_NDK_HOME" > android/local.properties
         ;;
       "ios")
-        apt-get install tree -y
         npm install
         cd ios && pod install --repo-update
         ;;
@@ -63,12 +62,11 @@
         fi
         ;;
       "ios")
-        echo "ios/Pods/WeexSDK/weex_core/Source/core/common/view_utils.h"
-        tree
-        # cat ios/Pods/WeexSDK/weex_core/Source/core/common/view_utils.h | while read line
-        # do
-        #     echo $line
-        # done
+        echo "Pods/WeexSDK/weex_core/Source/core/common/view_utils.h"
+        cat ./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
 
-