diff --git a/WsNovelParser/WsNovelParser.vcxproj.user b/WsNovelParser/WsNovelParser.vcxproj.user
index 0de2f02..aa22114 100644
--- a/WsNovelParser/WsNovelParser.vcxproj.user
+++ b/WsNovelParser/WsNovelParser.vcxproj.user
@@ -6,7 +6,7 @@
     <LocalDebuggerCommandArguments>--path "D:\Projects\Cpp\WsNovelParser\x64\test_file" --dest E:\</LocalDebuggerCommandArguments>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <LocalDebuggerCommandArguments>--path "D:\CustomNovels\科学+修仙+创造世界" --dest E:\</LocalDebuggerCommandArguments>
+    <LocalDebuggerCommandArguments>--path "D:\Projects\Cpp\WsNovelParser\x64\test_file" --dest E:\</LocalDebuggerCommandArguments>
     <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
     <LocalDebuggerWorkingDirectory>$(SolutionDir)$(Platform)\$(Configuration)\</LocalDebuggerWorkingDirectory>
   </PropertyGroup>
diff --git a/libSyntax/libsyntax.cpp b/libSyntax/libsyntax.cpp
index 3333631..05a7fcf 100644
--- a/libSyntax/libsyntax.cpp
+++ b/libSyntax/libsyntax.cpp
@@ -339,12 +339,13 @@ void MatchCursor::enterExprs() {
 }
 
 void lib_syntax::MatchCursor::logExprsError(std::shared_ptr<const lib_words::IPrimitiveWord> t, const QString& msg) {
-	if(!this->_total_errors.contains(t->position()))
-		this->_total_errors[t->position()] = QStringList();
+	auto pos_key = t?t->position():0;
+	if(!this->_total_errors.contains(pos_key))
+		this->_total_errors[pos_key] = QStringList();
 
-	auto exists = this->_total_errors[t->position()];
+	auto exists = this->_total_errors[pos_key];
 	exists.append(msg);
-	this->_total_errors[t->position()] = exists;
+	this->_total_errors[pos_key] = exists;
 
 	this->_exprs_errors.last()->addError(t, msg);