diff --git a/learnware/client/learnware_client.py b/learnware/client/learnware_client.py
index 2876863..2b8a84b 100644
--- a/learnware/client/learnware_client.py
+++ b/learnware/client/learnware_client.py
@@ -381,14 +381,14 @@ class LearnwareClient:
 
     @staticmethod
     def _check_semantic_specification(semantic_spec):
-        return EasySemanticChecker.check_semantic_spec(semantic_spec) != BaseChecker.INVALID_LEARNWARE
+        return EasySemanticChecker.check_semantic_spec(semantic_spec)[0] != BaseChecker.INVALID_LEARNWARE
 
     @staticmethod
     def _check_stat_specification(learnware):
         from ..market import CondaChecker
 
         stat_checker = CondaChecker(inner_checker=EasyStatChecker())
-        return stat_checker(learnware) != BaseChecker.INVALID_LEARNWARE
+        return stat_checker(learnware)[0] != BaseChecker.INVALID_LEARNWARE
 
     @staticmethod
     def check_learnware(learnware_zip_path, semantic_specification=None):
diff --git a/learnware/market/base.py b/learnware/market/base.py
index cfac135..12837fa 100644
--- a/learnware/market/base.py
+++ b/learnware/market/base.py
@@ -84,7 +84,7 @@ class LearnwareMarket:
                     )
                     for name in checker_names:
                         checker = self.learnware_checker[name]
-                        check_status = checker(pending_learnware)
+                        check_status, message = checker(pending_learnware)
                         final_status = max(final_status, check_status)
 
                         if check_status == BaseChecker.INVALID_LEARNWARE:
diff --git a/learnware/market/classes.py b/learnware/market/classes.py
index 560fd48..0c15309 100644
--- a/learnware/market/classes.py
+++ b/learnware/market/classes.py
@@ -16,11 +16,11 @@ class CondaChecker(BaseChecker):
         try:
             with LearnwaresContainer(learnware, ignore_error=False) as env_container:
                 learnwares = env_container.get_learnwares_with_container()
-                check_status = self.inner_checker(learnwares[0])
+                check_status, message = self.inner_checker(learnwares[0])
         except Exception as e:
             traceback.print_exc()
             message = f"Conda Checker failed due to installed learnware failed and {e}"
             logger.warning(message)
             message += "\n" + traceback.format_exc()
             return BaseChecker.INVALID_LEARNWARE, message
-        return check_status
+        return check_status, message