App inventor 最新工具包在哪有下载

请问有那位大神知道 app inventor 最新工具包在哪下载
还有为什么应用下载到手机会提示,此应用是旧版的安卓打造可能运行不了,怎么解决这个问题

Please say your question briefly.

This shouldn't happen if you are working with the current version of AI2 (nb186a).
http://ai2.appinventor.mit.edu.ezproxy.canberra.edu.au/
Are you using an offline version of AI2? If so, which?

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