Thread:Extension talk:MsUpload/The "select file" no function

When I add "$wgDefaultUserOptions['usebetatoolbar'] = 1;" in Localsettings.php or active them in my perfernces, the "Select files" button have no function. But before, it is worked. mediawiki version: 1.19.1 wikieditor: in the mediawiki package msuploadversion: 9.2 How can I active the button again? Thanks.