diff --git a/OCH/shuttle/driver_weaknet/src/main/java/com/mogo/och/weaknet/repository/db/MyDataBase.kt b/OCH/shuttle/driver_weaknet/src/main/java/com/mogo/och/weaknet/repository/db/MyDataBase.kt
index a765107464..06a27df739 100644
--- a/OCH/shuttle/driver_weaknet/src/main/java/com/mogo/och/weaknet/repository/db/MyDataBase.kt
+++ b/OCH/shuttle/driver_weaknet/src/main/java/com/mogo/och/weaknet/repository/db/MyDataBase.kt
@@ -90,6 +90,7 @@ abstract class MyDataBase : RoomDatabase() {
             )
                 .addMigrations(Migration1_2(1,2))
                 .addMigrations(Migration2_3(2,3))
+                .fallbackToDestructiveMigration()
                 .build()
         }
         val ROOT_PATH = Environment.getExternalStorageDirectory().absolutePath + File.separator + "Mogo" + File.separator + "APP_cache" + File.separator //程序外部存储跟目录