空数据拦截

lib/core/services/version_service/impl/pm_version_impl.dart

@@ -32,7 +32,11 @@ class PMVersionImpl implements VersionService {
       return null;
     }
 
-    var details = result?["detailVo"];
+    final details = result?["detailVo"];
+
+    if (details == null) {
+      return null;
+    }
 
     // 返回升级版本信息
     return VersionInfo(