diff --git a/core/mogo-core-function-api/src/main/java/com/mogo/eagle/core/function/api/cloud/IMoGoCloudListener.kt b/core/mogo-core-function-api/src/main/java/com/mogo/eagle/core/function/api/cloud/IMoGoCloudListener.kt
index 773ee27ace..c57446b7a2 100644
--- a/core/mogo-core-function-api/src/main/java/com/mogo/eagle/core/function/api/cloud/IMoGoCloudListener.kt
+++ b/core/mogo-core-function-api/src/main/java/com/mogo/eagle/core/function/api/cloud/IMoGoCloudListener.kt
@@ -4,7 +4,7 @@ import com.mogo.eagle.core.data.v2x.V2XEvent
 
 interface IMoGoCloudListener{
 
-    fun authCrtFile(device:String, root:String)
+    fun authCrtFile(device:String, root:String){}
 
     fun tokenGot(token: String, sn: String){}