Buglyst Blog
Learn to debug under pressure.
Playbooks for fast pattern recognition, guides for the full investigation, and articles for the engineering judgment around the edges.
17 playbooks · 509 guides · 95 articles · 12 linked practice labs ·skip to practice
Fast pattern recognition for the production failures engineers see most often.
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Structured investigations for the failure modes engineers meet in real systems.
Angular Standalone Component Import Error: What Actually Works
A debugging guide for Angular standalone component import errors – the import-not-found and unexpected directive issues you hit in real projects.
Angular Signals Not Updating the Template: Debugging Guide
A practical guide to debugging Angular Signals that fail to trigger template updates. Covers change detection, signal creation, and common pitfalls.
Angular HTTP Interceptor Not Firing: Real Causes and Fixes
Is your Angular HTTP interceptor silently failing? This guide covers the non-obvious reasons—from provider scoping to AOT issues—with concrete commands to verify.
ASP.NET Core Captive Dependency Scope Error: Diagnosis and Fixes
A practical guide to diagnosing and fixing captive dependency scope errors in ASP.NET Core DI, with real-world commands and code patterns.
Android ANR (Application Not Responding) Debugging: From Input Dispatch to Watchdog Timeouts
A field guide for Android engineers on diagnosing and fixing Application Not Responding (ANR) errors, covering input dispatch, broadcast receivers, and service timeouts.
Flutter setState Not Rebuilding Widget – Debugging Stale UI
Diagnose why setState doesn't trigger a rebuild in Flutter: missing context, wrong state class, or identity issues. Includes concrete commands and fixes.
Long-form thinking on debugging habits, observability, and the systems around the bug.
5 Questions to Ask Yourself Before Filing a Bug Report
A senior engineer's pre-flight checklist for bug reports — forged in the fire of a production incident that turned a 5-minute fix into a 3-hour hunt.
Binary Search for Bugs: Cutting Down Bisection Time with git bisect run
Automating git bisect with a script turns days of manual hunting into minutes. Here's how to build a reliable bisection harness for your codebase.
Reading a Call Stack: What Each Frame Actually Tells You
A call stack shows you the path your code took to crash. But most developers only look at the top frame. Here’s how to read the whole thing — including async traces, native frames, and minified code.
Using Breakpoints Effectively: Beyond Step and Continue
Most engineers know F9 to set a breakpoint and F5 to run. But breakpoints have hidden superpowers — conditional, logpoint, hit-count, and data breakpoints — that can cut debugging time in half. Here's how to use them with real examples.
Conditional Breakpoints: When and How to Use Them Beyond the Basics
Conditional breakpoints stop only when a specific condition is true, reducing noise in loops and high-frequency code. Here's how to wield them in Chrome DevTools, VS Code, and IntelliJ, plus a war story about a subtle race condition.
Debugging Character Encoding Problems: From Gibberish to Unicode
A practical guide to identifying and fixing character encoding problems, from broken UTF-8 to hidden BOM bytes, with real debugging examples.