Travel-sample data seems empty

I am following the tutorial “Using Next.js with Couchbase NodeJS SDK” and I have the app running and connected to my cluster but when I try the first API example to GET an airline, it returns “Airline not found”.

So, I went to the Data Tools tab for my cluster and tried the sample queries but they’re all returning 0 results, e.g.

SELECT * FROM travel-sample.inventory.airport limit 10;

returns

P.S. Right after posting this question, the following related question was suggested:

Per that answer I deleted the travel-sample bucket and re-imported it. Now I can see and query data on the Data Tools tab.

My app is now giving a different, protocol_error. If I can’t figure that out I’ll post a new question.