Tag: 트러블슈팅
All the articles with the tag "트러블슈팅".
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Real-Device Testing on App-in-Toss — Stuck on Direct Phone Connection, Solved with ait deploy
Starting the August vibe coding challenge, I tried real-device testing on App-in-Toss with my Galaxy Flip4 and only got 'A problem occurred while running the app.' I checked wifi, logs, and even TCP settings but couldn't fix it — turns out the whole approach was wrong. The answer was to build a bundle with `npx ait deploy` and send a test push.
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Daily 08:00 Ingestion Stopped — 'Yesterday by Calendar' Had No Data Yet
The automated ingestion pipeline failed, the gate worked correctly, and the wrong thing was my assumption. A record of the cost of computing external data publish delays by calendar, and discovering a test that gave false green lights.
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The Day Before Launch, I Overhauled Performance — And One Thing I Never Fixed
A tuning retrospective from the day before launching a solo-developed app: TTFB 3.15s → 10ms, LCP 22.1s → 1.4s. And the story of the PWA bottom system bar color I burned a whole day on but never fixed on the web.
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The Screen Froze for a Moment When I Tapped — Tracing the Cause
Tracing an intermittent tab-switch stutter, I confused my tools (Lighthouse ≠ INP), misdiagnosed Realtime, fixed an obvious waste with little payoff, and concluded it wasn't a single bug but a structural cost of SPA navigation. A retrospective that keeps the failures in.