diff --git a/src/views/xuncha/components/patroLogDetails.vue b/src/views/xuncha/components/patroLogDetails.vue
index db3efdb..8e37481 100644
--- a/src/views/xuncha/components/patroLogDetails.vue
+++ b/src/views/xuncha/components/patroLogDetails.vue
@@ -291,8 +291,10 @@
     }
     if (newfiberMap.map.getLayer('currentPosition')) {
       newfiberMap.map.removeLayer('currentPosition');
-      newfiberMap.map.removeLayer('currentLine');
       newfiberMap.map.removeSource('currentPosition');
+    }
+    if (newfiberMap.map.getLayer('currentLine')) {
+      newfiberMap.map.removeLayer('currentLine');
       newfiberMap.map.removeSource('currentLine');
     }
     getDatatwo();