Use Info loglevel if SystemConfigBlueprint is not available

sim/src/core/opSimulation/importer/systemConfigImporter.cpp

@@ -249,6 +249,12 @@ xmlDocPtr SystemConfigImporter::ImportSystemConfigContent(const std::string& fil
 {
   xmlInitParser();
 
+  if (!std::filesystem::exists(filename))
+  {
+    LOG_INTERN(LogLevel::Info) << filename + " does not exist";
+    return nullptr;
+  }
+
   xmlDocPtr document
       = xmlReadFile(filename.c_str(),
                     NULL,  // NOLINT(modernize-use-nullptr)
@@ -466,7 +472,7 @@ bool SystemConfigImporter::Import(const std::string& filename,
   }
   catch (const std::runtime_error& e)
   {
-    LOG_INTERN(LogLevel::Error) << "SystemConfig import failed: " + std::string(e.what());
+    LOG_INTERN(LogLevel::Info) << "SystemConfig import failed: " + std::string(e.what());
     return false;
   }
 }