diff --git a/build/builder/common/env_checker.py b/build/builder/common/env_checker.py
index 8ca0415623b911ffdad3b7d2acb71b8d3d7a0b5d..ea21e77183481af7d3d04e916e71ddaa698785d5 100755
--- a/build/builder/common/env_checker.py
+++ b/build/builder/common/env_checker.py
@@ -30,6 +30,9 @@ class Checker:
         return cls._instance
 
     def __init__(self):
+        self.os_id = None
+        self.os_version = None
+                
         with open('/etc/os-release', 'r') as f:
             for line in f:
                 if line.startswith('ID='):