Error in push notification

Hi all,
When i using this in config.xml the push notification receiving in ios but not working in android

< plugin name="phonegap-plugin-push" spec="~1.9.0">
< variable name="SENDER_ID" value="XXXXXX"/>
< /plugin>

using the below the push notification receiving in android but not working in ios
< plugin name="phonegap-plugin-push" spec="~1.6">
< variable name="SENDER_ID" value="XXXXXX"/>
< /plugin>

Give me the solution for supporting in both platforms