public static void Init()
{
Type type = typeof(StackTraceUtility);
FieldInfo field = type.GetField("projectFolder", BindingFlags.Static | BindingFlags.GetField | BindingFlags.NonPublic);
LuaException.projectFolder = (string)field.GetValue(null);
projectFolder = projectFolder.Replace('\\', '/');
#if DEVELOPER
Debugger.Log("projectFolder is {0}", projectFolder);
#endif
}