diff --git a/RedPandaIDE/compiler/projectcompiler.cpp b/RedPandaIDE/compiler/projectcompiler.cpp
index f01288d2..82277466 100644
--- a/RedPandaIDE/compiler/projectcompiler.cpp
+++ b/RedPandaIDE/compiler/projectcompiler.cpp
@@ -478,7 +478,7 @@ void ProjectCompiler::writeMakeObjFilesRules(QFile &file)
                 if (sourceEncoding==ENCODING_SYSTEM_DEFAULT)
                     sourceEncoding = defaultSystemEncoding;
 
-                if (sourceEncoding!=targetEncoding) {
+                if (QString::compare(sourceEncoding,targetEncoding,Qt::CaseInsensitive)!=0) {
                     encodingStr = QString(" -finput-charset=%1 -fexec-charset=%2")
                             .arg(QString(sourceEncoding),
                                  QString(targetEncoding));
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index b875b9b4..3ee5eefa 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -399,10 +399,10 @@ MainWindow::MainWindow(QWidget *parent)
     m=ui->treeFiles->selectionModel();
     ui->treeFiles->setModel(&mFileSystemModel);
     delete m;
-    connect(&mFileSystemModel, &QFileSystemModel::layoutChanged,
-            this, &MainWindow::onFileSystemModelLayoutChanged, Qt::QueuedConnection);
-    connect(&mFileSystemModel, &QFileSystemModel::fileRenamed,
-            this, &MainWindow::onFileSystemModelLayoutChanged, Qt::QueuedConnection);
+    // connect(&mFileSystemModel, &QFileSystemModel::layoutChanged,
+    //         this, &MainWindow::onFileSystemModelLayoutChanged, Qt::QueuedConnection);
+    // connect(&mFileSystemModel, &QFileSystemModel::fileRenamed,
+    //         this, &MainWindow::onFileSystemModelLayoutChanged, Qt::QueuedConnection);
     connect(&mFileSystemModel, &QFileSystemModel::fileRenamed,
             this, &MainWindow::onFileRenamedInFileSystemModel);
     mFileSystemModel.setReadOnly(false);