我有这个问题，一个博客的帮助下解决了这个问题。
首先，我们应该有SD卡。
第二次下载TTS * .apk文件
打开CMD（在Windows环境下）
亚行键入TTS instll * .apk文件（这将安装TTS到Android模拟器）

I had this problem and solved it with the help of one blog. First we should have SDcard. Second download tts*.apk open the cmd(in windows environment) type adb instll tts*.apk (this will install tts to android emulator)

以下步骤这将是确定
好运气

following this steps will be OK good luck