diff --git a/lib/index.js b/lib/index.js
index 9f64b93..336d8d2 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -104,10 +104,7 @@ export async function checkUpdate(APPKEY, isRetry) {
     );
   }
   if (typeof APPKEY !== 'string') {
-    throw new Error('未检测到合法的APPKEY，请查看update.json文件是否正确生成');
-  }
-  if (typeof packageVersion !== 'string') {
-    throw new Error('未检测到原生版本号');
+    throw new Error('未检查到合法的APPKEY，请查看update.json文件是否正确生成');
   }
   logger('checking update');
   let resp;