Make complaints

First of all, I think it is an official demo that should be responsible to the developer. The downloaded example cannot be compiled, and the Appsearch version number needs to be manually modified. Secondly, after the modification, it can be compiled and passed, but it will crash when it is started and run. Finally, please revise ASAP or don't give this example.

No sample, file, test, or failing stack trace is identified. Start by downloading the example and reproducing the compilation and startup failures, then inspect its build configuration and AppSearch dependency version; done means it builds without manual version edits and starts without crashing.

Written by the indexing model from the issue text.