Kotlin🟡 Intermediate📖 8-12 min read
Fix Android ViewModel Scope Leaked via Retained Fragment
ViewModel instances leak memory when retained fragments hold references to destroyed Activity contexts or views.
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Kotlin fixes
Published troubleshooting guides for kotlin issues.
41 guides available
Kotlin🟡 Intermediate📖 8-12 min read
Fix Jetpack Compose Recomposition Infinite Loop State Change
Jetpack Compose enters an infinite recomposition loop when a state change during composition triggers another recomposition, freezing the UI.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Kotlin Coroutines Dispatchers IO Thread Starvation
Dispatchers.IO thread pool is exhausted when too many coroutines perform blocking I/O, causing new coroutines to wait indefinitely.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Kotlin Serialization JSON Polymorphic Class Discriminator Error
kotlinx.serialization fails to deserialize polymorphic JSON when the class discriminator is missing or does not match registered subclasses.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Koin Dependency Injection Circle Detected Error
Koin throws StackOverflowError when two or more dependencies form a circular reference, preventing application startup.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Android Lifecycle Coroutine Cancelled on Screen Rotation
Coroutines launched with lifecycleScope are cancelled on configuration change, losing in-flight network requests and user progress.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix OkHttp Connection Pool Exhausted Unclosed Response Bodies
OkHttp connection pool runs out of available connections when response bodies are not closed, causing requests to hang indefinitely.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Moshi JsonDataException Required Property Absent
Moshi throws JsonDataException when a required non-null property is missing from the JSON response, failing deserialization entirely.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Gson StackOverflowError on Circular Reference Serialization
Gson throws StackOverflowError when serializing objects with circular references, causing app crashes during JSON conversion.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Room Migration Failed Version Mismatch Error
Room database migration fails when the schema version does not match the expected version or the migration path is incomplete.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Kotlin Flow collect Not Receiving SharedFlow Emissions
Kotlin SharedFlow collectors miss emissions because the flow has no replay value or the collector starts after the emission occurred.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Gradle Build Daemon OOM Killed by System
Gradle build daemon is killed by the OS out-of-memory killer during large builds, causing abrupt build failures with no Java stack trace.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Retrofit Response Body Null Error on Successful Request
Retrofit returns null response body on successful HTTP requests when the server returns empty body or mismatched content type.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Kotlin NullPointerException Lateinit Property Not Initialized
Accessing a lateinit var before initialization throws UninitializedPropertyAccessException, a common Kotlin runtime error in Android development.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Fix Kotlin Coroutine CancellationException Caught in Try-Catch
Catching Exception in a coroutine swallows CancellationException, preventing proper coroutine cancellation and causing resource leaks.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 1
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 10
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 11
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 12
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 13
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 14
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 15
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 16
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 17
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 18
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 19
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 2
Deep dive into Kotlin issue resolution with production-tested solutions.
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Kotlin Advanced Troubleshooting Topic 20
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 21
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 22
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 23
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 24
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 3
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 4
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 5
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 6
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 7
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 8
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Advanced Troubleshooting Topic 9
Deep dive into Kotlin issue resolution with production-tested solutions.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin Coroutine Cancellation Exception Handling
Handle cancellation properly with isActive checks and non-cancellable blocks.
Open guide Kotlin🟡 Intermediate📖 8-12 min read
Kotlin NullPointerException Platform Type Fix
Fix null safety issues with Java interop and platform type handling.
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