[1、无法获取授权](1%E3%80%81%E6%97%A0%E6%B3%95%E8%8E%B7%E5%8F%96%E6%8E%88%E6%9D%83.md) [2、无法播放课件](2%E3%80%81%E6%97%A0%E6%B3%95%E6%92%AD%E6%94%BE%E8%AF%BE%E4%BB%B6.md) [3、提示缺少****.dll](3%E3%80%81%E6%8F%90%E7%A4%BA%E7%BC%BA%E5%B0%91.dll.md)