Glyphicon Symbole werden nicht angezeigt

Hallo Leute, folgender Code zeigt keines der Glyphicon Symbole an. Weder glyphicon-user, noch glyphicon-home, rein gar nix. Alle CSS - und JS Dateien wurden korrekt geladen. Der Debugger zeigt keinerlei Fehler an. Woran könnte das liegen? Was muss ich machen ,damit die Symbole angezeigt werden?

Der hier verwendete Code

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <script src="/js_webseite/jquery.js"></script> <link rel="stylesheet" href="/css_webseite/bootstrap.css"> <link href="/css_webseite/twitter-bootstrap.min.css" rel="stylesheet"> </head> <body> <nav class="navbar navbar-inverse navbar-fixed-top" role="navigation"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="#menu-toggle" id="menu-toggle"><span class="glyphicon glyphicon-list" aria-hidden="true"></span></a> </div> <div id="navbar" class="navbar-collapse collapse"> <label class="navbar-text text-center text-primary" style="vertical-align:10px;font-size:medium ">HelpEachOther </label> <label class="navbar-text text-center text-primary" style="vertical-align:10px;font-size:medium ">Hello <font style="font-size:13px"> admin!</font> </label> </div> </nav> <div id="wrapper" class="toggled"> <div class="container-fluid"> <!-- Sidebar --> <div id="sidebar-wrapper"> <ul class="sidebar-nav"> <li class="sidebar-brand"> <br> </li> <li class="sidebar-brand"> <a href="#" class="navbar-brand"> <span class="glyphicon glyphicon-user" aria-hidden="true"></span> T.Kipp </a> </li> <li> <a href="index.php"><span class="glyphicon glyphicon-home" aria-hidden="true"></span> <font style="color:white"> Home </font></a> </li> <li> <a href="index.php"><span class="glyphicon glyphicon-tasks" aria-hidden="true"></span> My Task</a> </li> <li> <li> </ul> </div> <!-- /#sidebar-wrapper --> <!-- /#page-content-wrapper --> </div> </div> <!-- /#wrapper --> <div id="page-content-wrapper"> <div class="container-fluid"> <div class="row"> <div class="col-lg-12"> <br> </div> </div> <div class="row"> <div class="col-lg-12"> <div> </div> </div> </div> </div> </div> <!-- Menu Toggle Script --> <script> $("#menu-toggle").click(function (e) { e.preventDefault(); $("#wrapper").toggleClass("toggled"); }); </script> </body> </html>