diff --git a/NEWS.md b/NEWS.md
index 33530898..90a09e4e 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,6 +1,9 @@
 Version 0.8.4 For Dev-C++ 7 Beta
  - enhancement: auto save/load the default open folder in the configuration file
  - fix: shouldn't auto add '()' when char succeeding the completed function name is '('
+ - fix: can't show code completion popup if symbol is proceed with an operator '~' ( and it's not a destructor)
+ - fix: can't show code completion popup when define MACRO
+ - fix: can't debug files with chinese characters in the path
 
 Version 0.8.3 For Dev-C++ 7 Beta
  - enhancement: View menu
diff --git a/RedPandaIDE/debugger.cpp b/RedPandaIDE/debugger.cpp
index 5458682e..b2b23d05 100644
--- a/RedPandaIDE/debugger.cpp
+++ b/RedPandaIDE/debugger.cpp
@@ -1580,9 +1580,9 @@ void DebugReader::runNextCmd()
         emit cmdStarted();
 
     QByteArray s;
-    s=pCmd->command.toUtf8();
+    s=pCmd->command.toLocal8Bit();
     if (!pCmd->params.isEmpty()) {
-        s+=' '+pCmd->params.toUtf8();
+        s+= ' '+pCmd->params.toLocal8Bit();
     }
     s+= "\n";
     if (mProcess->write(s)<0) {
@@ -1817,6 +1817,7 @@ void DebugReader::run()
         readed = mProcess->readAll();
         buffer += readed;
 
+
         if ( readed.endsWith("\r\n")&& outputTerminated(buffer)) {
             processDebugOutput(QString::fromUtf8(buffer));
             buffer.clear();
diff --git a/RedPandaIDE/editor.cpp b/RedPandaIDE/editor.cpp
index fb34914f..33866062 100644
--- a/RedPandaIDE/editor.cpp
+++ b/RedPandaIDE/editor.cpp
@@ -2279,8 +2279,7 @@ void Editor::showCompletion(bool autoComplete)
         if (tokenType == SynHighlighterTokenType::PreprocessDirective) {//Preprocessor
             word = getWordAtPosition(this,caretXY(),pBeginPos,pEndPos, WordPurpose::wpDirective);
             if (!word.startsWith('#')) {
-                //showTabnineCompletion();
-                return;
+                word = "";
             }
         } else if (tokenType == SynHighlighterTokenType::Comment) { //Comment, javadoc tag
             word = getWordAtPosition(this,caretXY(),pBeginPos,pEndPos, WordPurpose::wpJavadoc);
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 36672c4c..09e10683 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -1296,7 +1296,6 @@ void MainWindow::debug()
         if (!mDebugger->start())
             return;
         filePath.replace('\\','/');
-        mDebugger->sendCommand("-gdb-set","host-charset UTF-8");
         mDebugger->sendCommand("-file-exec-and-symbols", '"' + filePath + '"');
 
         if (mProject->options().type == ProjectType::DynamicLib) {
@@ -1375,7 +1374,6 @@ void MainWindow::debug()
                 mDebugger->setUseUTF8(e->fileEncoding() == ENCODING_UTF8 || e->fileEncoding() == ENCODING_UTF8_BOM);
                 if (!mDebugger->start())
                     return;
-                mDebugger->sendCommand("-gdb-set","host-charset UTF-8");
                 mDebugger->sendCommand("-file-exec-and-symbols", QString("\"%1\"").arg(debugFile.filePath().replace('\\','/')));
             }
         }
diff --git a/RedPandaIDE/mainwindow.ui b/RedPandaIDE/mainwindow.ui
index 4a8c0f8a..507115f3 100644
--- a/RedPandaIDE/mainwindow.ui
+++ b/RedPandaIDE/mainwindow.ui
@@ -85,7 +85,7 @@
             <enum>QTabWidget::West</enum>
            </property>
            <property name="currentIndex">
-            <number>0</number>
+            <number>1</number>
            </property>
            <property name="usesScrollButtons">
             <bool>true</bool>
@@ -171,10 +171,10 @@
                 <enum>Qt::ElideNone</enum>
                </property>
                <property name="wordWrap">
-                <bool>true</bool>
-               </property>
-               <attribute name="headerVisible">
                 <bool>false</bool>
+               </property>
+               <attribute name="headerDefaultSectionSize">
+                <number>50</number>
                </attribute>
               </widget>
              </item>
diff --git a/RedPandaIDE/widgets/codecompletionpopup.cpp b/RedPandaIDE/widgets/codecompletionpopup.cpp
index b5587591..9bc19456 100644
--- a/RedPandaIDE/widgets/codecompletionpopup.cpp
+++ b/RedPandaIDE/widgets/codecompletionpopup.cpp
@@ -72,6 +72,11 @@ void CodeCompletionPopup::prepareSearch(const QString &phrase, const QString &fi
     mIncludedFiles = mParser->getFileIncludes(filename);
     getCompletionFor(filename,phrase,line);
 
+    if (mFullCompletionStatementList.isEmpty() && phrase.startsWith('~')) {
+        mPhrase = phrase.mid(1);
+        getCompletionFor(filename,mPhrase,line);
+    }
+
     //todo: notify model
 //CodeComplForm.lbCompletion.Font.Size := FontSize;
 //CodeComplForm.lbCompletion.ItemHeight := CodeComplForm.lbCompletion.Canvas.TextHeight('F')+6;
@@ -110,6 +115,13 @@ bool CodeCompletionPopup::search(const QString &phrase, bool autoHideOnSingleRes
     QString symbol = phrase.mid(i);
     // filter fFullCompletionStatementList to fCompletionStatementList
     filterList(symbol);
+
+    //if can't find a destructor, maybe '~' is only an operator
+    if (mCompletionStatementList.isEmpty() && phrase.startsWith('~')) {
+        symbol = phrase.mid(1);
+        filterList(symbol);
+    }
+
     mModel->notifyUpdated();
     setCursor(oldCursor);