diff --git a/server/web3bcspider/metadata/factory.js b/server/web3bcspider/metadata/factory.js
index e1858b4..a3b68c3 100644
--- a/server/web3bcspider/metadata/factory.js
+++ b/server/web3bcspider/metadata/factory.js
@@ -26,7 +26,17 @@ function registerMetaClass(fileName, primKey, wrapClass) {
 function checkNetData(net) {
   net['Events'].forEach(
     (item) => {
-      console.log(item);
+      let found = false;
+      net['Contract'].forEach(
+        (c) => {
+          if (c['name'] == item['contract_name']) {
+            found = true;
+          }
+        }
+      );
+      if (!found) {
+        throw new Error('checkNetData contract found:' + utils.jsonEncode(item));
+      }
     }
   );
 }