diff --git a/NEWS.md b/NEWS.md
index 3c72a454..4751a081 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -2,6 +2,7 @@ Red Panda C++ Version 2.0
 
   - redesign the project parser, more efficient and correct
   - enhancement: todo parser for project
+  - fix: save/load bookmark doesn't work
 
 Red Panda C++ Version 1.5
 
diff --git a/RedPandaIDE/debugger.cpp b/RedPandaIDE/debugger.cpp
index e14fb10c..6b9d88a6 100644
--- a/RedPandaIDE/debugger.cpp
+++ b/RedPandaIDE/debugger.cpp
@@ -310,6 +310,12 @@ void Debugger::setIsForProject(bool newIsForProject)
     }
 }
 
+void Debugger::clearForProject()
+{
+    mBreakpointModel->clear(true);
+    mWatchModel->clear(true);
+}
+
 void Debugger::addBreakpoint(int line, const Editor* editor)
 {
     addBreakpoint(line,editor->filename(), editor->inProject());
@@ -2197,6 +2203,16 @@ void WatchModel::clear()
     endResetModel();
 }
 
+void WatchModel::clear(bool forProject)
+{
+    if (mIsForProject == forProject)
+        beginResetModel();
+    QList<PWatchVar> &vars=(forProject?mProjectWatchVars:mWatchVars);
+    vars.clear();
+    if (mIsForProject == forProject)
+        endResetModel();
+}
+
 const QList<PWatchVar> &WatchModel::watchVars() const
 {
     return watchVars(mIsForProject);
diff --git a/RedPandaIDE/debugger.h b/RedPandaIDE/debugger.h
index 3d9acf1a..cd709d9d 100644
--- a/RedPandaIDE/debugger.h
+++ b/RedPandaIDE/debugger.h
@@ -196,6 +196,7 @@ public:
     void removeWatchVar(const QString& expression);
     void removeWatchVar(const QModelIndex& index);
     void clear();
+    void clear(bool forProject);
     PWatchVar findWatchVar(const QModelIndex& index);
     PWatchVar findWatchVar(const QString& expr);
     void resetAllVarInfos();
@@ -307,6 +308,7 @@ public:
 
     bool isForProject() const;
     void setIsForProject(bool newIsForProject);
+    void clearForProject();
 
     //breakpoints
     void addBreakpoint(int line, const Editor* editor);
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 051982c3..6243bb4e 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -4474,8 +4474,11 @@ void MainWindow::closeProject(bool refreshEditor)
         mClassBrowserModel.endUpdate();
 
         if (!mQuitting) {
+            mBookmarkModel->clear(true);
             mBookmarkModel->setIsForProject(false);
+            mDebugger->clearForProject();
             mDebugger->setIsForProject(false);
+            mTodoModel.clear(true);
             mTodoModel.setIsForProject(false);
             // Clear error browser
             clearIssues();
diff --git a/RedPandaIDE/todoparser.cpp b/RedPandaIDE/todoparser.cpp
index ba7eea79..c616c03b 100644
--- a/RedPandaIDE/todoparser.cpp
+++ b/RedPandaIDE/todoparser.cpp
@@ -131,11 +131,10 @@ void TodoThread::doParseFile(const QString &filename, QSynedit::PHighlighter hig
             attr = highlighter->getTokenAttribute();
             if (attr == commentAttr) {
                 QString token = highlighter->getToken();
-                qDebug()<<token;
                 int pos = token.indexOf("TODO:",0,Qt::CaseInsensitive);
                 if (pos>=0) {
                     emit todoFound(
-                                mFilename,
+                                filename,
                                 i+1,
                                 pos+highlighter->getTokenPos(),
                                 lines[i].trimmed()
@@ -196,6 +195,16 @@ void TodoModel::clear()
     endResetModel();
 }
 
+void TodoModel::clear(bool forProject)
+{
+    if (mIsForProject == forProject)
+        beginResetModel();
+    QList<PTodoItem> &items=getItems(forProject);
+    items.clear();
+    if (mIsForProject == forProject)
+        endResetModel();
+}
+
 PTodoItem TodoModel::getItem(const QModelIndex &index)
 {
     if (!index.isValid())
diff --git a/RedPandaIDE/todoparser.h b/RedPandaIDE/todoparser.h
index 59576613..bf8980a7 100644
--- a/RedPandaIDE/todoparser.h
+++ b/RedPandaIDE/todoparser.h
@@ -41,6 +41,7 @@ public:
                  int ch, const QString& line);
     void removeTodosForFile(const QString& filename);
     void clear();
+    void clear(bool forProject);
     PTodoItem getItem(const QModelIndex& index);
 private:
     QList<PTodoItem> &getItems(bool forProject);
diff --git a/RedPandaIDE/widgets/bookmarkmodel.cpp b/RedPandaIDE/widgets/bookmarkmodel.cpp
index 927aa14e..313ec63b 100644
--- a/RedPandaIDE/widgets/bookmarkmodel.cpp
+++ b/RedPandaIDE/widgets/bookmarkmodel.cpp
@@ -194,37 +194,31 @@ void BookmarkModel::save(const QString &filename, const QString& projectFolder)
 {
     bool forProject = !projectFolder.isEmpty();
     qint64 t,fileTimestamp;
-    QList<PBookmark> bookmarks;
+    QHash<QString,int> compareHash;
+    QList<PBookmark> &list=forProject?mProjectBookmarks:mBookmarks;
     if (forProject) {
         t=mLastLoadProjectBookmarksTimestamp;
-        foreach (const PBookmark& bookmark, mProjectBookmarks) {
-            PBookmark newBookmark=std::make_shared<Bookmark>();
-            newBookmark->description = bookmark->description;
-            newBookmark->filename = extractRelativePath(projectFolder, bookmark->filename);
-            newBookmark->line = bookmark->line;
-            newBookmark->timestamp = bookmark->timestamp;
-            bookmarks.append(newBookmark);
-        }
     } else {
         t=mLastLoadBookmarksTimestamp;
-        bookmarks = mBookmarks;
+    }
+    for (int i=0;i<list.count();i++) {
+        const PBookmark& bookmark=list[i];
+        QString filename = forProject?extractRelativePath(projectFolder, bookmark->filename):bookmark->filename;
+        QString key = QString("%1-%2").arg(filename).arg(bookmark->line);
+        compareHash.insert(key,i);
     }
     QList<PBookmark> fileBookmarks=load(filename, t,&fileTimestamp);
     QFile file(filename);
     if (file.open(QFile::WriteOnly | QFile::Truncate)) {        
-        QHash<QString,int> compareHash;
+
         QList<PBookmark> saveBookmarks;
-        for (int i=0; i<bookmarks.count(); i++) {
-            PBookmark& bookmark=bookmarks[i];
-            QString key = QString("%1-%2").arg(bookmark->filename).arg(bookmark->line);
-            compareHash.insert(key,i);;
-        }
+
         QDir dir(projectFolder);
         foreach (const PBookmark& bookmark, fileBookmarks) {
             QString key = QString("%1-%2").arg(bookmark->filename).arg(bookmark->line);
             int idx = compareHash.value(key,-1);
             if (idx<0) {
-                int count=forProject?mProjectBookmarks.count():mBookmarks.count();
+                int count=list.count();
                 compareHash.insert(key,count);
                 if (forProject == mIsForProject) {
                     beginInsertRows(QModelIndex(),count,count);
@@ -232,12 +226,11 @@ void BookmarkModel::save(const QString &filename, const QString& projectFolder)
                 if (forProject) {
                     bookmark->filename = dir.absoluteFilePath(bookmark->filename);
                 }
-                QList<PBookmark> &list=forProject?mProjectBookmarks:mBookmarks;
+
                 list.append(bookmark);
                 if (forProject == mIsForProject)
                     endInsertRows();
             } else {
-                const QList<PBookmark> &list=forProject?mProjectBookmarks:mBookmarks;
                 PBookmark pTemp = list[idx];
                 if (pTemp->timestamp<=bookmark->timestamp) {
                     bookmark->description = pTemp->timestamp;
@@ -258,10 +251,10 @@ void BookmarkModel::save(const QString &filename, const QString& projectFolder)
         QJsonObject rootObj;
         rootObj["timestamp"]=QString("%1").arg(saveTime);
         QJsonArray array;
-        const QList<PBookmark> &list=forProject?mProjectBookmarks:mBookmarks;
         foreach (const PBookmark& bookmark, list) {
             QJsonObject obj;
-            obj["filename"]=bookmark->filename;
+            QString filename = forProject?extractRelativePath(projectFolder, bookmark->filename):bookmark->filename;
+            obj["filename"]=filename;
             obj["line"]=bookmark->line;
             obj["description"]=bookmark->description;
             obj["timestamp"]=QString("%1").arg(bookmark->timestamp);
@@ -298,7 +291,7 @@ QList<PBookmark> BookmarkModel::load(const QString& filename, qint64 criteriaTim
                             .arg(error.offset)
                             .arg(error.errorString()));
         }
-        QJsonObject rootObj;
+        QJsonObject rootObj=doc.object();
         bool ok;
         qint64 timestamp = rootObj["timestamp"].toString().toLongLong(&ok);
         if (!ok || timestamp<=criteriaTimestamp)
@@ -309,6 +302,7 @@ QList<PBookmark> BookmarkModel::load(const QString& filename, qint64 criteriaTim
             QJsonValue value = array[i];
             QJsonObject obj=value.toObject();
             qint64 bookmarkTimestamp = obj["timestamp"].toString().toULongLong(&ok);
+            qDebug()<<bookmarkTimestamp<<"??"<<criteriaTimestamp;
             if (ok && bookmarkTimestamp>criteriaTimestamp) {
                 PBookmark bookmark = std::make_shared<Bookmark>();
                 bookmark->filename = obj["filename"].toString();
@@ -338,7 +332,9 @@ void BookmarkModel::loadProjectBookmarks(const QString &filename, const QString&
     mLastLoadProjectBookmarksTimestamp = QDateTime::currentMSecsSinceEpoch();
     mProjectBookmarks = load(filename,0,&t);
     QDir folder(projectFolder);
+    qDebug()<<"load books"<<filename;
     foreach (PBookmark bookmark, mProjectBookmarks) {
+        qDebug()<<bookmark->filename;
         bookmark->filename=folder.absoluteFilePath(bookmark->filename);
     }
     if (mIsForProject)
diff --git a/libs/qsynedit/qsynedit/TextBuffer.cpp b/libs/qsynedit/qsynedit/TextBuffer.cpp
index a496faf3..7ae67cec 100644
--- a/libs/qsynedit/qsynedit/TextBuffer.cpp
+++ b/libs/qsynedit/qsynedit/TextBuffer.cpp
@@ -595,12 +595,12 @@ void Document::loadFromFile(const QString& filename, const QByteArray& encoding,
                 realEncoding = ENCODING_ASCII;
             return;
         }
-         realEncoding = pCharsetInfoManager->getDefaultSystemEncoding();
+        realEncoding = pCharsetInfoManager->getDefaultSystemEncoding();
+        if (tryLoadFileByEncoding(realEncoding,file)) {
+            return;
+        }
         QList<PCharsetInfo> charsets = pCharsetInfoManager->findCharsetByLocale(pCharsetInfoManager->localeName());
         if (!charsets.isEmpty()) {
-            if (tryLoadFileByEncoding(realEncoding,file)) {
-                return;
-            }
 
             QSet<QByteArray> encodingSet;
             for (int i=0;i<charsets.size();i++) {
diff --git a/libs/redpanda_qt_utils/qt_utils/utils.cpp b/libs/redpanda_qt_utils/qt_utils/utils.cpp
index 175f73e7..00f29393 100644
--- a/libs/redpanda_qt_utils/qt_utils/utils.cpp
+++ b/libs/redpanda_qt_utils/qt_utils/utils.cpp
@@ -37,6 +37,7 @@
 #include <QMimeDatabase>
 #include <windows.h>
 #endif
+#include "charsetinfo.h"
 
 BaseError::BaseError(const QString &reason):
 mReason(reason)
@@ -301,51 +302,68 @@ void readFileToLines(const QString &fileName, QTextCodec *codec, LineProcessFunc
     }
 }
 
+static QStringList tryLoadFileByEncoding(QByteArray encodingName, QFile& file, bool* isOk) {
+    QStringList result;
+    *isOk=false;
+    QTextCodec* codec = QTextCodec::codecForName(encodingName);
+    if (!codec)
+        return result;
+    file.reset();
+    QTextCodec::ConverterState state;
+    while (true) {
+        if (file.atEnd()){
+            break;
+        }
+        QByteArray line = file.readLine();
+        if (line.endsWith("\r\n")) {
+            line.remove(line.length()-2,2);
+        } else if (line.endsWith("\r")) {
+            line.remove(line.length()-1,1);
+        } else if (line.endsWith("\n")){
+            line.remove(line.length()-1,1);
+        }
+        QString newLine = codec->toUnicode(line.constData(),line.length(),&state);
+        if (state.invalidChars>0) {
+            return QStringList();
+        }
+        result.append(newLine);
+    }
+    *isOk=true;
+    return result;
+}
+
 QStringList readFileToLines(const QString &fileName)
 {
     QFile file(fileName);
     if (file.size()<=0)
         return QStringList();
-    QTextCodec* codec = QTextCodec::codecForLocale();
     QStringList result;
-    QTextCodec::ConverterState state;
-    bool ok = true;
     if (file.open(QFile::ReadOnly)) {
-        while (!file.atEnd()) {
-            QByteArray array = file.readLine();
-            QString s = codec->toUnicode(array,array.length(),&state);
-            if (state.invalidChars>0) {
-                ok=false;
-                break;
-            }
-            if (s.endsWith("\r\n")) {
-                s.remove(s.length()-2,2);
-            } else if (s.endsWith("\r")) {
-                s.remove(s.length()-1,1);
-            } else if (s.endsWith("\n")){
-                s.remove(s.length()-1,1);
-            }
-            result.append(s);
+        bool ok;
+        result = tryLoadFileByEncoding("UTF-8",file,&ok);
+        if (ok) {
+            return result;
         }
-        if (!ok) {
-            file.seek(0);
-            result.clear();
-            codec = QTextCodec::codecForName("UTF-8");
-            while (!file.atEnd()) {
-                QByteArray array = file.readLine();
-                QString s = codec->toUnicode(array,array.length(),&state);
-                if (state.invalidChars>0) {
-                    result.clear();
-                    break;
+
+        QByteArray realEncoding = pCharsetInfoManager->getDefaultSystemEncoding();
+        result = tryLoadFileByEncoding(realEncoding,file,&ok);
+        if (ok) {
+            return result;
+        }
+        QList<PCharsetInfo> charsets = pCharsetInfoManager->findCharsetByLocale(pCharsetInfoManager->localeName());
+        if (!charsets.isEmpty()) {
+            QSet<QByteArray> encodingSet;
+            for (int i=0;i<charsets.size();i++) {
+                encodingSet.insert(charsets[i]->name);
+            }
+            encodingSet.remove(realEncoding);
+            foreach (const QByteArray& encodingName,encodingSet) {
+                if (encodingName == ENCODING_UTF8)
+                    continue;
+                result = tryLoadFileByEncoding("UTF-8",file,&ok);
+                if (ok) {
+                    return result;
                 }
-                if (s.endsWith("\r\n")) {
-                    s.remove(s.length()-2,2);
-                } else if (s.endsWith("\r")) {
-                    s.remove(s.length()-1,1);
-                } else if (s.endsWith("\n")){
-                    s.remove(s.length()-1,1);
-                }
-                result.append(s);
             }
         }
     }