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The Mobile track.

Flutter, Kotlin, Android, Swift and Xcode — ship mobile apps without the obscure build errors. Built as a curriculum — 5 chapters, recommended spine if you're new, side-quests when you're ready.

⏱ ~2h 20m total 10 beginner · 10 intermediate · 0 advanced 📚 20 topics

You'll cover: Flutter, Kotlin, Android — then go deeper.

Start here: RenderFlex Overflow: Fix the Yellow Stripe Fast → setState After Dispose: Guard Async Callbacks → Gradle Build Failed: Fix the Minimum Version →

Continue from RenderFlex Overflow: Fix the Yellow Stripe Fast → Complete Mobile guide

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CURRICULUM

5 chapters · 20 topics

01

Flutter

SPINEBeginner

7 topics · ~49m · 0/7 read

RenderFlex Overflow: Fix the Yellow Stripe Fast setState After Dispose: Guard Async Callbacks Gradle Build Failed: Fix the Minimum Version Hot Reload Not Working: When to Restart LateInitializationError: Assign Before You Read+2 more

02

Kotlin

SPINEIntermediate

5 topics · ~35m · 0/5 read

Kotlin NullPointerException on Platform Types from Java Kotlin lateinit Property Has Not Been Initialized Kotlin Coroutine JobCancellationException — Scope Leaks Kotlin suspend Function Called From Non-Coroutine Context Kotlin Unresolved Reference After Adding Dependency

03

Android

SPINEIntermediate

3 topics · ~21m · 0/3 read

Android app:mergeDebugResources Duplicate Resources Android Default FirebaseApp Is Not Initialized Android Room Cannot Verify Data Integrity — Schema Migration

04

Swift

Beginner

3 topics · ~21m · 0/3 read

Swift Unexpectedly Found Nil While Unwrapping an Optional Swift Index Out of Range in Array Access Swift Publishing Changes From Background Threads Not Allowed

05

Xcode

Beginner

2 topics · ~14m · 0/2 read

Xcode Code Signing Error: No Profiles Found Xcode Module Not Found After Swift Package Manager Add

START HERE · CHAPTER 01

Flutter

7 topics · Begin with RenderFlex Overflow: Fix the Yellow Stripe Fast

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