Sentry Android SDK Skill

All Skills > SDK Setup > Android SDK

Sentry Android SDK

Opinionated wizard that scans your Android project and guides you through complete Sentry setup — error monitoring, tracing, profiling, session replay, logging, and more.

Invoke This Skill When

User asks to "add Sentry to Android" or "set up Sentry" in an Android app
User wants error monitoring, crash reporting, ANR detection, tracing, profiling, session replay, or logging in Android
User mentions sentry-android, io.sentry:sentry-android, mobile crash tracking, or Sentry for Kotlin/Java Android
User wants to monitor native (NDK) crashes, application not responding (ANR) events, or app startup performance

Note: SDK versions and APIs below reflect current Sentry docs at time of writing (io.sentry:sentry-android:8.33.0, Gradle plugin 6.1.0). Always verify against docs.sentry.io/platforms/android/ before implementing.

Phase 1: Detect

Run these commands to understand the project before making any recommendations:

# Detect project structure and build system
ls build.gradle build.gradle.kts settings.gradle settings.gradle.kts 2>/dev/null

# Check AGP version and existing Sentry
grep -r '"com.android.application"' build.gradle* app/build.gradle* 2>/dev/null | head -3
grep -ri sentry build.gradle* app/build.gradle* 2>/dev/null | head -10

# Check app-level build file (Groovy vs KTS)
ls app/build.gradle app/build.gradle.kts 2>/dev/null

# Detect Kotlin vs Java
find app/src/main -name "*.kt" 2>/dev/null | head -3
find app/src/main -name "*.java" 2>/dev/null | head -3

# Check minSdk, targetSdk
grep -E 'minSdk|targetSdk|compileSdk|minSdkVersion|targetSdkVersion' app/build.gradle app/build.gradle.kts 2>/dev/null | head -6

# Detect Jetpack Compose
grep -E 'compose|androidx.compose' app/build.gradle app/build.gradle.kts 2>/dev/null | head -5

# Detect OkHttp (popular HTTP client — has dedicated integration)
grep -E 'okhttp|retrofit' app/build.gradle app/build.gradle.kts 2>/dev/null | head -3

# Detect Room or SQLite
grep -E 'androidx.room|androidx.sqlite' app/build.gradle app/build.gradle.kts 2>/dev/null | head -3

# Detect Timber (logging library)
grep -E 'timber' app/build.gradle app/build.gradle.kts 2>/dev/null | head -3

# Detect Jetpack Navigation
grep -E 'androidx.navigation' app/build.gradle app/build.gradle.kts 2>/dev/null | head -3

# Detect Apollo (GraphQL)
grep -E 'apollo' app/build.gradle app/build.gradle.kts 2>/dev/null | head -3

# Check existing Sentry initialization
grep -r "SentryAndroid.init\|io.sentry.Sentry" app/src/ 2>/dev/null | head -5

# Check Application class
find app/src/main -name "*.kt" -o -name "*.java" 2>/dev/null | xargs grep -l "Application()" 2>/dev/null | head -3

# Adjacent backend (for cross-linking)
ls ../backend ../server ../api 2>/dev/null
find .. -maxdepth 2 \( -name "go.mod" -o -name "requirements.txt" -o -name "Gemfile" \) 2>/dev/null | grep -v node_modules | head -5

What to determine:

| Question | Impact | |----------|--------| | build.gradle.kts present? | Use Kotlin DSL syntax in all examples | | minSdk < 26? | Note Session Replay requires API 26+ — silent no-op below that | | Compose detected? | Recommend sentry-compose-android and Compose-specific masking | | OkHttp present? | Recommend sentry-okhttp interceptor or Gradle plugin bytecode auto-instrumentation | | Room/SQLite present? | Recommend sentry-android-sqlite or plugin bytecode instrumentation | | Timber present? | Recommend sentry-android-timber integration | | Jetpack Navigation? | Recommend sentry-android-navigation for screen tracking | | Already has SentryAndroid.init()? | Skip install, jump to feature config | | Application subclass exists? | That's where SentryAndroid.init() goes |

Phase 2: Recommend

Present a concrete recommendation based on what you found. Don't ask open-ended questions — lead with a proposal:

Recommended (core coverage — always set up these):

✅ Error Monitoring — captures uncaught exceptions, ANRs, and native NDK crashes automatically
✅ Tracing — auto-instruments Activity lifecycle, app start, HTTP requests, and database queries
✅ Session Replay — records screen captures and user interactions for debugging (API 26+)

Optional (enhanced observability):

⚡ Profiling — continuous UI profiling (recommended) or transaction-based sampling
⚡ Logging — structured logs via Sentry.logger(), with optional Timber bridge
⚡ User Feedback — collect user-submitted bug reports from inside the app

Recommendation logic:

| Feature | Recommend when... | |---------|------------------| | Error Monitoring | Always — non-negotiable baseline for any Android app | | Tracing | Always for Android — app start time, Activity lifecycle, network latency matter | | Session Replay | User-facing production app on API 26+; visual debugging of user issues | | Profiling | Performance-sensitive apps, startup time investigations, production perf analysis | | Logging | App uses structured logging or you want log-to-trace correlation in Sentry | | User Feedback | Beta or customer-facing app where you want user-submitted bug reports |

Propose: "For your [Kotlin / Java] Android app (minSdk X), I recommend setting up Error Monitoring + Tracing + Session Replay. Want me to also add Profiling and Logging?"

Phase 3: Guide

Determine Your Setup Path

| Project type | Recommended setup | Complexity | |-------------|------------------|------------| | New project, no existing Sentry | Gradle plugin (recommended) | Low — plugin handles most config | | Existing project, no Sentry | Gradle plugin or manual init | Medium — add dependency + Application class | | Manual full control | SentryAndroid.init() in Application | Medium — explicit config, most flexible |

Option 1: Wizard (Recommended)

You need to run this yourself — the wizard opens a browser for login and requires interactive input that the agent can't handle. Copy-paste into your terminal:
npx @sentry/wizard@latest -i android
It handles login, org/project selection, Gradle plugin setup, dependency installation, DSN configuration, and ProGuard/R8 mapping upload.

Once it finishes, come back and skip to Verification.

If the user skips the wizard, proceed with Option 2 (Manual Setup) below.

Option 2: Manual Setup

Path A: Gradle Plugin (Recommended)

The Sentry Gradle plugin is the easiest setup path. It:

Uploads ProGuard/R8 mapping files automatically on release builds
Injects source context into stack frames
Optionally instruments OkHttp, Room/SQLite, File I/O, Compose navigation, and android.util.Log via bytecode transforms (zero source changes)

Step 1 — Add the plugin to build.gradle[.kts] (project-level)

Groovy DSL (build.gradle):

plugins {
    id "io.sentry.android.gradle" version "6.1.0" apply false
}

Kotlin DSL (build.gradle.kts):

plugins {
    id("io.sentry.android.gradle") version "6.1.0" apply false
}

Step 2 — Apply plugin + add dependencies in app/build.gradle[.kts]

Groovy DSL:

plugins {
    id "com.android.application"
    id "io.sentry.android.gradle"
}

android {
    // ...
}

dependencies {
    // Use BOM for consistent versions across sentry modules
    implementation platform("io.sentry:sentry-bom:8.33.0")
    implementation "io.sentry:sentry-android"

    // Optional integrations (add what's relevant):
    // implementation "io.sentry:sentry-android-timber"     // Timber bridge
    // implementation "io.sentry:sentry-android-fragment"   // Fragment lifecycle tracing
    // implementation "io.sentry:sentry-compose-android"    // Jetpack Compose support
    // implementation "io.sentry:sentry-android-navigation"  // Jetpack Navigation
    // implementation "io.sentry:sentry-okhttp"             // OkHttp interceptor
    // implementation "io.sentry:sentry-android-sqlite"     // Room/SQLite tracing
    // implementation "io.sentry:sentry-kotlin-extensions"  // Coroutine context propagation
}

sentry {
    org = "YOUR_ORG_SLUG"
    projectName = "YOUR_PROJECT_SLUG"
    authToken = System.getenv("SENTRY_AUTH_TOKEN")

    // Enable auto-instrumentation via bytecode transforms (no source changes needed)
    tracingInstrumentation {
        enabled = true
        features = [InstrumentationFeature.DATABASE, InstrumentationFeature.FILE_IO,
                    InstrumentationFeature.OKHTTP, InstrumentationFeature.COMPOSE]
    }

    // Upload ProGuard mapping and source context on release
    autoUploadProguardMapping = true
    includeSourceContext = true
}

Kotlin DSL (app/build.gradle.kts):

plugins {
    id("com.android.application")
    id("io.sentry.android.gradle")
}

dependencies {
    implementation(platform("io.sentry:sentry-bom:8.33.0"))
    implementation("io.sentry:sentry-android")

    // Optional integrations:
    // implementation("io.sentry:sentry-android-timber")
    // implementation("io.sentry:sentry-android-fragment")
    // implementation("io.sentry:sentry-compose-android")
    // implementation("io.sentry:sentry-android-navigation")
    // implementation("io.sentry:sentry-okhttp")
    // implementation("io.sentry:sentry-android-sqlite")
    // implementation("io.sentry:sentry-kotlin-extensions")
}

sentry {
    org = "YOUR_ORG_SLUG"
    projectName = "YOUR_PROJECT_SLUG"
    authToken = System.getenv("SENTRY_AUTH_TOKEN")

    tracingInstrumentation {
        enabled = true
        features = setOf(
            InstrumentationFeature.DATABASE,
            InstrumentationFeature.FILE_IO,
            InstrumentationFeature.OKHTTP,
            InstrumentationFeature.COMPOSE,
        )
    }

    autoUploadProguardMapping = true
    includeSourceContext = true
}

Step 3 — Initialize Sentry in your Application class

If you don't have an Application subclass, create one:

// MyApplication.kt
import android.app.Application
import io.sentry.SentryLevel
import io.sentry.android.core.SentryAndroid
import io.sentry.android.replay.SentryReplayOptions

class MyApplication : Application() {
    override fun onCreate() {
        super.onCreate()

        SentryAndroid.init(this) { options ->
            options.dsn = "YOUR_SENTRY_DSN"

            // Tracing — lower to 0.1–0.2 in high-traffic production
            options.tracesSampleRate = 1.0

            // Profiling — use continuous UI profiling (recommended, SDK ≥ 8.7.0)
            options.profileSessionSampleRate = 1.0

            // Session Replay (API 26+ only; silent no-op below API 26)
            options.sessionReplay.sessionSampleRate = 0.1    // 10% of all sessions
            options.sessionReplay.onErrorSampleRate = 1.0    // 100% on error

            // Structured logging
            options.logs.isEnabled = true

            // Environment
            options.environment = BuildConfig.BUILD_TYPE
        }
    }
}

Java equivalent:

// MyApplication.java
import android.app.Application;
import io.sentry.android.core.SentryAndroid;

public class MyApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();

        SentryAndroid.init(this, options -> {
            options.setDsn("YOUR_SENTRY_DSN");
            options.setTracesSampleRate(1.0);
            options.setProfileSessionSampleRate(1.0);
            options.getSessionReplay().setSessionSampleRate(0.1);
            options.getSessionReplay().setOnErrorSampleRate(1.0);
            options.getLogs().setEnabled(true);
            options.setEnvironment(BuildConfig.BUILD_TYPE);
        });
    }
}

Step 4 — Register Application in AndroidManifest.xml

<application
    android:name=".MyApplication"
    ... >

Path B: Manual Setup (No Gradle Plugin)

Use this if you can't use the Gradle plugin (e.g., non-standard build setups).

Step 1 — Add dependency in app/build.gradle[.kts]

dependencies {
    implementation(platform("io.sentry:sentry-bom:8.33.0"))
    implementation("io.sentry:sentry-android")
}

Step 2 — Initialize in Application class (same as Path A, Step 3)

Step 3 — Configure ProGuard/R8 manually

The Sentry SDK ships a ProGuard rules file automatically. For manual mapping upload, install sentry-cli and add to your CI:

sentry-cli releases files "my-app@1.0.0+42" upload-proguard \
  --org YOUR_ORG --project YOUR_PROJECT \
  app/build/outputs/mapping/release/mapping.txt

Quick Reference: Full-Featured `SentryAndroid.init()`

SentryAndroid.init(this) { options ->
    options.dsn = "YOUR_SENTRY_DSN"

    // Environment and release
    options.environment = BuildConfig.BUILD_TYPE     // "debug", "release", etc.
    options.release = "${BuildConfig.APPLICATION_ID}@${BuildConfig.VERSION_NAME}+${BuildConfig.VERSION_CODE}"

    // Tracing — sample 100% in dev, lower to 10–20% in production
    options.tracesSampleRate = 1.0

    // Continuous UI profiling (recommended over transaction-based)
    options.profileSessionSampleRate = 1.0

    // Session Replay (API 26+; silent no-op on API 21–25)
    options.sessionReplay.sessionSampleRate = 0.1
    options.sessionReplay.onErrorSampleRate = 1.0
    options.sessionReplay.maskAllText = true         // mask text for privacy
    options.sessionReplay.maskAllImages = true       // mask images for privacy

    // Structured logging
    options.logs.isEnabled = true

    // Error enrichment
    options.isAttachScreenshot = true                // capture screenshot on error
    options.isAttachViewHierarchy = true             // attach view hierarchy JSON

    // ANR detection (5s default; watchdog + ApplicationExitInfo API 30+)
    options.isAnrEnabled = true

    // NDK native crash handling (enabled by default)
    options.isEnableNdk = true

    // Send PII: IP address, user data
    options.sendDefaultPii = true

    // Trace propagation (backend distributed tracing)
    options.tracePropagationTargets = listOf("api.yourapp.com", ".*\\.yourapp\\.com")

    // Verbose logging — disable in production
    options.isDebug = BuildConfig.DEBUG
}

For Each Agreed Feature

Walk through features one at a time. Load the reference file for each, follow its steps, then verify before moving on:

| Feature | Reference | Load when... | |---------|-----------|-------------| | Error Monitoring | ${SKILL_ROOT}/references/error-monitoring.md | Always (baseline) | | Tracing & Performance | ${SKILL_ROOT}/references/tracing.md | Always for Android (Activity lifecycle, network) | | Profiling | ${SKILL_ROOT}/references/profiling.md | Performance-sensitive production apps | | Session Replay | ${SKILL_ROOT}/references/session-replay.md | User-facing apps (API 26+) | | Logging | ${SKILL_ROOT}/references/logging.md | Structured logging / log-to-trace correlation | | Metrics | ${SKILL_ROOT}/references/metrics.md | Custom metric tracking (Beta, SDK ≥ 8.30.0) | | Crons | ${SKILL_ROOT}/references/crons.md | Scheduled jobs, WorkManager check-ins |

For each feature: Read ${SKILL_ROOT}/references/<feature>.md, follow steps exactly, verify it works.

Integration Reference

Built-in (Auto-Enabled)

These integrations activate automatically when SentryAndroid.init() is called:

| Integration | What it does | |-------------|-------------| | UncaughtExceptionHandlerIntegration | Captures all uncaught Java/Kotlin exceptions | | AnrIntegration | ANR detection via watchdog thread (5s) + ApplicationExitInfo (API 30+) | | NdkIntegration | Native (C/C++) crash capture via sentry-native | | ActivityLifecycleIntegration | Auto-instruments Activity create/resume/pause for TTID/TTFD | | AppStartMetrics | Measures cold/warm/hot app start time | | NetworkBreadcrumbsIntegration | Records connectivity changes as breadcrumbs | | SystemEventsBreadcrumbsIntegration | Records battery, screen on/off, etc. | | AppLifecycleIntegration | Records foreground/background transitions | | UserInteractionIntegration | Breadcrumbs for taps, swipes, input events | | CurrentActivityIntegration | Tracks active Activity for context |

Optional Integrations

Add the artifact to your dependencies {} block (versions managed by BOM):

| Integration | Artifact | When to add | |-------------|---------|-------------| | Timber | io.sentry:sentry-android-timber | App uses Timber for logging | | Fragment | io.sentry:sentry-android-fragment | App uses Jetpack Fragments (lifecycle tracing) | | Compose | io.sentry:sentry-compose-android | App uses Jetpack Compose (navigation + masking) | | Navigation | io.sentry:sentry-android-navigation | App uses Jetpack Navigation Component | | OkHttp | io.sentry:sentry-okhttp | App uses OkHttp or Retrofit | | Room/SQLite | io.sentry:sentry-android-sqlite | App uses Room or raw SQLite | | Apollo 3 | io.sentry:sentry-apollo-3 | App uses Apollo GraphQL v3 | | Apollo 4 | io.sentry:sentry-apollo-4 | App uses Apollo GraphQL v4 | | Kotlin Extensions | io.sentry:sentry-kotlin-extensions | Kotlin coroutines context propagation | | Ktor Client | io.sentry:sentry-ktor-client | App uses Ktor HTTP client | | LaunchDarkly | io.sentry:sentry-launchdarkly-android | App uses LaunchDarkly feature flags |

Gradle Plugin Bytecode Instrumentation

The plugin can inject instrumentation automatically (no source changes):

| Feature | Instruments | Enable via | |---------|-------------|-----------| | DATABASE | Room DAO, SupportSQLiteOpenHelper | tracingInstrumentation.features | | FILE_IO | FileInputStream, FileOutputStream | tracingInstrumentation.features | | OKHTTP | OkHttpClient.Builder automatically | tracingInstrumentation.features | | COMPOSE | NavHostController auto-instrumentation | tracingInstrumentation.features | | LOGCAT | android.util.Log capturing | tracingInstrumentation.features |

Configuration Reference

Core `SentryOptions` (via `SentryAndroid.init`)

| Option | Type | Default | Purpose | |--------|------|---------|---------| | dsn | String | — | Required. Project DSN; SDK silently disabled if empty | | environment | String | — | e.g., "production", "staging". Env: SENTRY_ENVIRONMENT | | release | String | — | App version, e.g., "my-app@1.0.0+42". Env: SENTRY_RELEASE | | dist | String | — | Build variant / distribution identifier | | sendDefaultPii | Boolean | false | Include PII: IP address, user data | | sampleRate | Double | 1.0 | Error event sampling (0.0–1.0) | | maxBreadcrumbs | Int | 100 | Max breadcrumbs per event | | isAttachStacktrace | Boolean | true | Auto-attach stack traces to message events | | isAttachScreenshot | Boolean | false | Capture screenshot on error | | isAttachViewHierarchy | Boolean | false | Attach JSON view hierarchy as attachment | | isDebug | Boolean | false | Verbose SDK output. Never use in production | | isEnabled | Boolean | true | Disable SDK entirely (e.g., for testing) | | beforeSend | SentryOptions.BeforeSendCallback | — | Modify or drop error events before sending | | beforeBreadcrumb | SentryOptions.BeforeBreadcrumbCallback | — | Filter breadcrumbs before storage |

Tracing Options

| Option | Type | Default | Purpose | |--------|------|---------|---------| | tracesSampleRate | Double | 0.0 | Transaction sample rate (0–1). Use 1.0 in dev | | tracesSampler | TracesSamplerCallback | — | Per-transaction sampling; overrides tracesSampleRate | | tracePropagationTargets | List<String> | [".*"] | Hosts/URLs to receive sentry-trace and baggage headers | | isEnableAutoActivityLifecycleTracing | Boolean | true | Auto-instrument Activity lifecycle | | isEnableTimeToFullDisplayTracing | Boolean | false | TTFD spans (requires Sentry.reportFullyDisplayed()) | | isEnableUserInteractionTracing | Boolean | false | Auto-instrument user gestures as transactions |

Profiling Options

| Option | Type | Default | Purpose | |--------|------|---------|---------| | profileSessionSampleRate | Double | 0.0 | Continuous profiling sample rate (SDK ≥ 8.7.0, API 22+) | | profilesSampleRate | Double | 0.0 | Legacy transaction profiling rate (mutually exclusive with continuous) | | isProfilingStartOnAppStart | Boolean | false | Auto-start profiling session on app launch |

ANR Options

| Option | Type | Default | Purpose | |--------|------|---------|---------| | isAnrEnabled | Boolean | true | Enable ANR watchdog thread | | anrTimeoutIntervalMillis | Long | 5000 | Milliseconds before reporting ANR | | isAnrReportInDebug | Boolean | false | Report ANRs in debug builds (noisy in debugger) |

NDK Options

| Option | Type | Default | Purpose | |--------|------|---------|---------| | isEnableNdk | Boolean | true | Enable native crash capture via sentry-native | | isEnableScopeSync | Boolean | true | Sync Java scope (user, tags) to NDK layer | | isEnableTombstoneFetchJob | Boolean | true | Fetch NDK tombstone files for enrichment |

Session Replay Options (`options.sessionReplay`)

| Option | Type | Default | Purpose | |--------|------|---------|---------| | sessionSampleRate | Double | 0.0 | Fraction of all sessions to record | | onErrorSampleRate | Double | 0.0 | Fraction of error sessions to record | | maskAllText | Boolean | true | Mask all text in replays | | maskAllImages | Boolean | true | Mask all images in replays | | quality | SentryReplayQuality | MEDIUM | Video quality: LOW, MEDIUM, HIGH |

Logging Options (`options.logs`)

| Option | Type | Default | Purpose | |--------|------|---------|---------| | isEnabled | Boolean | false | Enable Sentry.logger() API (SDK ≥ 8.12.0) | | setBeforeSend | BeforeSendLogCallback | — | Filter/modify log entries before sending |

Environment Variables

| Variable | Purpose | Notes | |----------|---------|-------| | SENTRY_DSN | Data Source Name | Set in CI; SDK reads from environment at init | | SENTRY_AUTH_TOKEN | Upload ProGuard mappings and source context | Never commit — use CI/CD secrets | | SENTRY_ORG | Organization slug | Used by Gradle plugin sentry.org | | SENTRY_PROJECT | Project slug | Used by Gradle plugin sentry.projectName | | SENTRY_RELEASE | Release identifier | Falls back from options.release | | SENTRY_ENVIRONMENT | Environment name | Falls back from options.environment |

You can also configure DSN and many options via AndroidManifest.xml meta-data:

<application>
    <meta-data android:name="io.sentry.dsn" android:value="YOUR_DSN" />
    <meta-data android:name="io.sentry.traces-sample-rate" android:value="1.0" />
    <meta-data android:name="io.sentry.environment" android:value="production" />
    <meta-data android:name="io.sentry.anr.enable" android:value="true" />
    <meta-data android:name="io.sentry.attach-screenshot" android:value="true" />
    <meta-data android:name="io.sentry.attach-view-hierarchy" android:value="true" />
</application>

⚠️ Manifest meta-data is a convenient alternative but does not support the full option set. For complex configuration (session replay, profiling, hooks), use SentryAndroid.init().

Verification

After setup, verify Sentry is receiving events:

Test error capture:

// In an Activity or Fragment
try {
    throw RuntimeException("Sentry Android SDK test")
} catch (e: Exception) {
    Sentry.captureException(e)
}

Test tracing:

val transaction = Sentry.startTransaction("test-task", "task")
val span = transaction.startChild("test-span", "description")
span.finish()
transaction.finish()

Test structured logging (SDK ≥ 8.12.0):

Sentry.logger().info("Sentry logging test")
Sentry.logger().error("Error log test", Exception("test error"))

Check the Sentry dashboard:

Issues → your test exception should appear within seconds
Traces → look for test-task transaction with child span
Replays → session recording visible after app interaction (requires API 26+)
Logs → structured log entries visible under Logs tab

If nothing appears:

Set options.isDebug = true — SDK logs to Logcat
Verify DSN is correct and matches your Sentry project
Check that your Application class is registered in AndroidManifest.xml as android:name
Confirm the device/emulator has internet connectivity
For NDK crashes, ensure isEnableNdk = true (default) and build with NDK support

Phase 4: Cross-Link

After completing Android setup, check for a backend or web frontend missing Sentry coverage:

# Adjacent backend directories
ls ../backend ../server ../api 2>/dev/null
cat ../go.mod 2>/dev/null | head -3
cat ../requirements.txt ../pyproject.toml 2>/dev/null | head -5
cat ../Gemfile 2>/dev/null | head -3
ls ../backend/package.json ../server/package.json 2>/dev/null

# iOS counterpart app
ls ../ios ../YourApp-iOS 2>/dev/null
find .. -maxdepth 3 -name "*.xcodeproj" 2>/dev/null | head -3

If a backend or related platform exists without Sentry, suggest the matching skill:

| Detected | Suggest skill | |----------|--------------| | Go backend (go.mod) | sentry-go-sdk | | Python backend (requirements.txt, pyproject.toml) | sentry-python-sdk | | Ruby backend (Gemfile) | sentry-ruby-sdk | | Node.js backend | @sentry/node — see docs.sentry.io/platforms/javascript/guides/express/ | | iOS app (.xcodeproj) | sentry-cocoa-sdk | | React Native (package.json with react-native) | sentry-react-native-sdk | | React / Next.js web | sentry-react-sdk or sentry-nextjs-sdk |

Distributed tracing setup — if the backend skill is added, configure tracePropagationTargets in Android to propagate trace context to your API:

options.tracePropagationTargets = listOf(
    "api.yourapp.com",
    ".*\\.yourapp\\.com"
)

This links mobile transactions to backend traces in the Sentry waterfall view.

Troubleshooting

| Issue | Solution | |-------|----------| | Events not appearing in Sentry | Set isDebug = true, check Logcat for SDK errors; verify DSN is correct and matches your project | | SentryAndroid.init() not called | Confirm android:name=".MyApplication" is set in AndroidManifest.xml; Application class not abstract | | Gradle plugin not found | Add the plugin to project-level build.gradle.kts first, then apply false; verify version 6.1.0 | | ProGuard mapping not uploading | Set SENTRY_AUTH_TOKEN env var; ensure autoUploadProguardMapping = true in sentry {} block | | NDK crashes not captured | Verify isEnableNdk = true (default); ensure project has NDK configured in android.ndkVersion | | ANR reported in debugger | Set isAnrReportInDebug = false (default); ANR watchdog fires when debugger pauses threads | | Session replay not recording | Requires API 26+; verify sessionSampleRate > 0 or onErrorSampleRate > 0; check Logcat for replay errors | | Session replay shows blank screen | PixelCopy (default) requires hardware acceleration; try SentryReplayOptions.screenshotQuality = CANVAS | | Replay masking misaligned | Views with translationX/Y or clipToPadding=false can offset masks; report to github.com/getsentry/sentry-java | | beforeSend not firing | beforeSend only intercepts managed (Java/Kotlin) events; NDK native crashes bypass it | | OkHttp spans not appearing | Add SentryOkHttpInterceptor to your OkHttpClient, or use Gradle plugin OKHTTP bytecode instrumentation | | Spans not attached to transaction | Ensure TransactionOptions().setBindToScope(true) when starting transaction; child spans look for scope root | | Tracing not recording | Verify tracesSampleRate > 0; Activity instrumentation requires isEnableAutoActivityLifecycleTracing = true (default) | | Continuous profiling not working | SDK ≥ 8.7.0 required; API 22+ required; set profileSessionSampleRate > 0; don't also set profilesSampleRate | | Both profiling modes set | profilesSampleRate and profileSessionSampleRate are mutually exclusive — use only one | | TTFD spans missing | Set isEnableTimeToFullDisplayTracing = true and call Sentry.reportFullyDisplayed() when screen is ready | | Kotlin coroutine scope lost | Add sentry-kotlin-extensions dependency; use Sentry.cloneMainContext() to propagate trace context | | Release build stack traces unreadable | ProGuard mapping not uploaded; confirm Gradle plugin autoUploadProguardMapping = true and auth token set | | Source context not showing in Sentry | Enable includeSourceContext = true in sentry {} block (Gradle plugin required) | | BOM version conflict | Use implementation(platform("io.sentry:sentry-bom:8.33.0")) and omit versions from all other io.sentry:* entries | | SENTRY_AUTH_TOKEN exposed | Auth token is build-time only — never pass it to SentryAndroid.init() or embed in the APK |

Agent Skills: Sentry Android SDK

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