Index: sources/storage/Settings.cpp
===================================================================
diff -u -rd8c73c14f41d548e3ffecdb6948e6b7bb54523f2 -r2ef03b2ce51b4dc507f66e9671953a8e0824bde9
--- sources/storage/Settings.cpp	(.../Settings.cpp)	(revision d8c73c14f41d548e3ffecdb6948e6b7bb54523f2)
+++ sources/storage/Settings.cpp	(.../Settings.cpp)	(revision 2ef03b2ce51b4dc507f66e9671953a8e0824bde9)
@@ -1,13 +1,13 @@
 /*!
  *
- * Copyright (c) 2021-2023 Diality Inc. - All Rights Reserved.
+ * Copyright (c) 2021-2024 Diality Inc. - All Rights Reserved.
  * \copyright
  * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
  * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
  *
  * \file    Settings.cpp
  * \author  (last)      Behrouz NematiPour
- * \date    (last)      18-Jul-2023
+ * \date    (last)      08-Aug-2023
  * \author  (original)  Behrouz NematiPour
  * \date    (original)  29-Mar-2021
  *
@@ -52,33 +52,36 @@
 /*!
  * \brief   Settings::doRead
  * \details Reads all the configuration files
+ * \return  non-zero, error value on error, and zero on success.
  */
 int Settings::read()
 {
-    int err = Settings::Settings_Error::eError_None;
+    int             err             = Settings::Settings_Error::eError_None;
     QStringList     fileFilter      = QStringList() << QString("*.%1").arg(_settingsExt);
     QFileInfoList   settingFiles    = FileHandler::find      (Storage::Settings_Path(), fileFilter);
     QStringList     settingFolders  = FileHandler::subFolders(Storage::Settings_Path());
 
     if ( ! settingFolders.count() ) {
         err = Settings::Settings_Error::eError_No_SettingsFolder;
-        LOG_DEBUG(errorMessage(err).arg(Storage::Settings_Path()));
+        LOG_APPED_PO(errorMessage(err).arg(Storage::Settings_Path()));
         return err;
     }
 
     for ( QString &settingFolder : settingFolders ) {
         QString folder = settingFolder.prepend(Storage::Settings_Path());
         settingFiles += FileHandler::find(folder, fileFilter);
     }
+
     // DEBUG:
     // settingFiles =
     // {
     //     QFileInfo("/home/denali/Projects/application/resources/settings/Confirm/Confirm.conf"),
     //     QFileInfo("/home/denali/Projects/application/resources/settings/Alarms/Alarms.conf")
     // };
+
     if ( ! settingFiles.count() ) {
         err = Settings::Settings_Error::eError_No_SettingsFile;
-        LOG_DEBUG(errorMessage(err).arg(Storage::Settings_Path()));
+        LOG_APPED_PO(errorMessage(err).arg(Storage::Settings_Path()));
         return err;
     }
 
@@ -87,14 +90,24 @@
         if (! isValid(settingFile.absoluteFilePath())) continue;
 
         QFile file(settingFile.absoluteFilePath());
-        if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
-            Detail detail;
-            detail.content    = file.readAll().trimmed();
-            if (detail.content.isEmpty()) continue;
-            detail.location   = settingFile.absolutePath() + "/";
-            detail.category   = QString(detail.location + settingFile.baseName()).remove(Storage::Settings_Path());
-            details += detail;
+        if (! file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+            err = Settings::Settings_Error::eError_Read;
+            LOG_APPED_PO(errorMessage(err).arg(Storage::Settings_Path()));
+            return err;
         }
+
+        Detail detail;
+        detail.content    = file.readAll().trimmed();
+        if (detail.content.isEmpty()) {
+            //TODO  Do not error out for now, the list of the config files which can be empty or not needs to be defined.
+            // err = Settings::Settings_Error::eError_Empty;
+            LOG_APPED_PO(errorMessage(Settings::Settings_Error::eError_Empty).arg(settingFile.fileName()));
+            continue;
+        }
+
+        detail.location   = settingFile.absolutePath() + "/";
+        detail.category   = QString(detail.location + settingFile.baseName()).remove(Storage::Settings_Path());
+        details += detail;
     }
 
     for (const auto &detail : details) {
@@ -125,7 +138,7 @@
                     else if ( line == attribute.arg(_duplicate_key_off ) ) { enableDuplicateKey = false ;}
 
                     else    {
-                        LOG_APPED_UI(( "Unknown '" + line + "' attribute in %1").arg(detail.category));
+                        LOG_APPED_PO(( "Unknown '" + line + "' attribute in %1").arg(detail.category));
                     }
                 }