diff --git a/src/adaptive/Info.php b/src/adaptive/Info.php
index 33c8062f6d1a30664c09ab81ea6bdc7e7d3e742d..8152d38817034c8a670875d4cca04d54720bb19a 100644
--- a/src/adaptive/Info.php
+++ b/src/adaptive/Info.php
@@ -227,7 +227,7 @@ class Info
 				}
 				
 				if ($workflow['status']['wf_mode'] != 2) {
-                    if($workflow ['nexprocess']['process_type']=='node-end'){
+                    if(($workflow ['nexprocess']['process_type'] ?? '')=='node-end'){
                         $workflow['nexid'] = '';//终点节点，直接结束步骤
                     }else{
                         $workflow['nexid'] = $workflow ['nexprocess']['id'];//下一步骤