change warnings into debug information since node does not malfunction.

Signed-off-by: Tomoya.Fujita <Tomoya.Fujita@sony.com>

Author: fujitatomoya

rclcpp/src/rclcpp/parameter_service.cpp

@@ -47,7 +47,7 @@ ParameterService::ParameterService(
           response->values.push_back(param.get_value_message());
         }
       } catch (const rclcpp::exceptions::ParameterNotDeclaredException & ex) {
-        RCLCPP_WARN(rclcpp::get_logger("rclcpp"), "Failed to get parameters: %s", ex.what());
+        RCLCPP_DEBUG(rclcpp::get_logger("rclcpp"), "Failed to get parameters: %s", ex.what());
       }
     },
     qos_profile, nullptr);
@@ -68,7 +68,7 @@ ParameterService::ParameterService(
             return static_cast<rclcpp::ParameterType>(type);
           });
       } catch (const rclcpp::exceptions::ParameterNotDeclaredException & ex) {
-        RCLCPP_WARN(rclcpp::get_logger("rclcpp"), "Failed to get parameter types: %s", ex.what());
+        RCLCPP_DEBUG(rclcpp::get_logger("rclcpp"), "Failed to get parameter types: %s", ex.what());
       }
     },
     qos_profile, nullptr);
@@ -89,7 +89,7 @@ ParameterService::ParameterService(
           result = node_params->set_parameters_atomically(
             {rclcpp::Parameter::from_parameter_msg(p)});
         } catch (const rclcpp::exceptions::ParameterNotDeclaredException & ex) {
-          RCLCPP_WARN(rclcpp::get_logger("rclcpp"), "Failed to set parameter: %s", ex.what());
+          RCLCPP_DEBUG(rclcpp::get_logger("rclcpp"), "Failed to set parameter: %s", ex.what());
           result.successful = false;
           result.reason = ex.what();
         }
@@ -117,7 +117,7 @@ ParameterService::ParameterService(
         auto result = node_params->set_parameters_atomically(pvariants);
         response->result = result;
       } catch (const rclcpp::exceptions::ParameterNotDeclaredException & ex) {
-        RCLCPP_WARN(
+        RCLCPP_DEBUG(
           rclcpp::get_logger("rclcpp"), "Failed to set parameters atomically: %s", ex.what());
         response->result.successful = false;
         response->result.reason = "One or more parameters were not declared before setting";
@@ -137,7 +137,7 @@ ParameterService::ParameterService(
         auto descriptors = node_params->describe_parameters(request->names);
         response->descriptors = descriptors;
       } catch (const rclcpp::exceptions::ParameterNotDeclaredException & ex) {
-        RCLCPP_WARN(rclcpp::get_logger("rclcpp"), "Failed to describe parameters: %s", ex.what());
+        RCLCPP_DEBUG(rclcpp::get_logger("rclcpp"), "Failed to describe parameters: %s", ex.what());
       }
     },
     qos_profile, nullptr);