Why in Android NDK not Install Software?

I Start the Android NDK and create error in Console "ObjectAid Sequence Diagram is not availab开发者_运维问答le because no valid license was found"..

Please give me Solution.

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That has most likely nothing to do with the Android NDK, but another software called ObjectAid Sequence Diagram which requires an evaluation or paid license:

Note that you need a license to use the Sequence Diagram Editor. To obtain a license, first create an account by clicking on Account. Once your account has been activated, you can request a single evaluation license or purchase single-user licenses for 19 USD each.

from http://www.objectaid.com/download