Error map
Module 'x' not found (iOS build) Xcode: Module 'firebase_core' not found — flutter build ios fails after adding a plugin
Flutter / Dart · layer 1, On your device
Centre: this error. First ring: errors it is linked with (12). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.
Directly related (12)
CocoaPods could not find compatible versions for pod
pod install can’t satisfy the version constraints — outdated spec repo, a higher deployment target required, or two pods needing…
[!] CDN: trunk URL couldn't be downloaded: https://cdn.cocoapods.org/...
CocoaPods couldn’t reach its CDN spec repo — network/proxy issues, rate limiting, or an outdated CocoaPods.
[!] Unable to find a specification for `X` depended upon by `Y`
CocoaPods can’t find the pod (or version) in its spec repos — stale local specs, a private spec repo not added, or a typo.
Xcode: Command PhaseScriptExecution failed with a nonzero exit code
A Run Script build phase (CocoaPods, React Native, Flutter, SwiftLint, Crashlytics…) failed. The real error is above this line in…
ld: library not found for -lPods-AppName / framework not found Pods_App
The linker can’t find the CocoaPods library — usually because the .xcodeproj was opened instead of the .xcworkspace, or pods were…
Flutter: BoxConstraints forces an infinite width. These invalid constraints were provided to RenderStack's layout() function (TextField in a Row)
A widget that needs a finite width, like a `TextField` or `Container` with no size, was placed where the parent offers unlimited…
Flutter: MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/shared_preferences)
Dart called a plugin's native method but the native side is not registered, usually because the app was not fully rebuilt after a…
iOS: The resource could not be loaded because the App Transport Security policy requires the use of a secure connection (NSURLErrorDomain -1022)
iOS blocks plain HTTP connections by default unless the domain is allowed in `Info.plist`.
Flutter iOS: Error running pod install — CocoaPods not installed or out of date / [!] CocoaPods could not find compatible versions for pod
The iOS build cannot install its native dependencies because CocoaPods is missing, outdated or a pod's version constraints confli…
Xcode: No profiles for 'com.example.app' were found: Xcode couldn't find any iOS App Development provisioning profiles matching
Xcode could not sign the app because no provisioning profile or development team is set for the bundle identifier.
Android Gradle: Execution failed for task ':app:checkDebugAarMetadata'. Dependency requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs
A dependency was built against a newer Android API than your project's `compileSdk`.
flutter doctor: Android license status unknown. Run `flutter doctor --android-licenses` to accept the SDK licenses
The Android SDK licenses have not been accepted, so builds cannot download or use SDK components.
Two steps away (33)
npm ERR! code ERESOLVE — unable to resolve dependency tree
npm 7+ found conflicting peer dependency requirements and refuses to install a broken tree.
Gradle: Could not resolve all files for configuration / Could not resolve dependency
Gradle couldn’t download a dependency — wrong coordinates/version, missing repository, offline mode, or network/proxy issues.
Xcode: Multiple commands produce '…/Info.plist' (or another file)
Two build steps write the same output file — usually Info.plist or an asset added to “Copy Bundle Resources”, or duplicate files…
Error: connect ECONNREFUSED 127.0.0.1:5432
Nothing is listening at that host:port — the target service is down or you’re connecting to the wrong address.
HTTP 407 Proxy Authentication Required
A proxy between you and the server requires credentials before it will forward your request.
HTTP 408 Request Timeout
The server closed the connection because the client took too long to send the complete request.
Dependency 'androidx.x:1.y' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs
A library needs a higher compileSdk than your module uses (checkAarMetadata task).
Swift: No such module 'X' (module not found)
Xcode can’t find a Swift package, pod or framework you import.
Dart pub: Because app depends on intl ^0.19.0 and flutter_localizations from sdk depends on intl 0.18.1, version solving failed
`flutter pub get` cannot find a set of package versions that satisfy every dependency's constraints.
bash: command not found
The shell can’t find an executable with that name in any directory on your PATH.
Xcode: No signing certificate "iOS Development" found
Xcode can’t find a valid code-signing certificate + private key for the selected team in your keychain.
Undefined symbol(s) for architecture arm64 — linker command failed with exit code 1
The linker can’t find the implementation of a symbol your code uses — a missing framework/library, a file not in the target, or a…
Building for iOS Simulator, but linking in object file built for iOS, for architecture arm64
A library contains device-only arm64 code; Apple Silicon simulators also run arm64 and need a separate simulator slice.
C/C++: undefined reference to `function' — collect2: error: ld returned 1 exit status
The linker can’t find the definition of a function or variable that was declared and used.
Jetpack Compose: Vertically scrollable component was measured with an infinity maximum height constraints, which is disallowed
A LazyColumn (or verticalScroll) is placed inside another vertically scrolling container, so it gets infinite height.
Flutter: A RenderFlex overflowed by x pixels on the right/bottom
A Row or Column’s children need more space than available, so Flutter draws the yellow-black overflow stripes.
Flutter: RenderBox was not laid out: RenderFlex#a1b2c relayoutBoundary=up2 NEEDS-PAINT — Failed assertion: 'hasSize'
A widget was asked for its size or painted before layout finished, usually because a parent gave it unbounded or conflicting cons…
Flutter: PlatformException(sign_in_failed, com.google.android.gms.common.api.ApiException: 10: , null, null)
Google Sign-In failed on Android because the app's SHA-1 fingerprint or package name is not registered for the OAuth client.
Flutter (Android): java.io.IOException: Cleartext HTTP traffic to api.example.com not permitted
Android 9+ blocks plain `http://` requests by default; the app must use HTTPS or explicitly allow cleartext for that host.
Flutter: [core/no-app] No Firebase App '[DEFAULT]' has been created - call Firebase.initializeApp()
A Firebase service was used before `Firebase.initializeApp()` ran and completed.
android.os.NetworkOnMainThreadException
The app made a network call on the main (UI) thread, which Android forbids.
Error Domain=NSURLErrorDomain Code=-1009 "The Internet connection appears to be offline."
URLSession couldn’t reach the network — the device is offline, the app’s cellular data is disabled, or the simulator lost network…
Error Domain=NSURLErrorDomain Code=-1001 "The request timed out."
The server didn’t respond within URLSession’s timeout (60 s default) — slow server, unreachable host on this network, or a stalle…
flutter run: No connected devices found; check 'flutter doctor'. Expected at least one device
Flutter cannot see any emulator, simulator, browser or phone to run on.
Android: INSTALL_FAILED_UPDATE_INCOMPATIBLE
An app with the same package name but a different signing key is already installed on the device.
INSTALL_PARSE_FAILED_NO_CERTIFICATES / App not installed as package appears to be invalid
The APK isn’t signed (or the signature is invalid for this Android version), so it can’t be installed.
Play Console: You uploaded an APK or Android App Bundle that was signed in debug mode. You need to sign your APK or Android App Bundle in release mode
The bundle was signed with the debug keystore; Play only accepts release-signed uploads.
Manifest merger failed: android:exported needs to be explicitly specified
Targeting Android 12 (API 31)+ requires `android:exported` on every activity, service or receiver that has an intent-filter.
Duplicate class X found in modules A and B
Two dependencies ship the same class — typically old Android Support libraries mixed with AndroidX, or Kotlin stdlib-jdk7/jdk8 ve…
Gradle: Unsupported class file major version / Android Gradle plugin requires Java 17 to run
The JDK running Gradle doesn’t match what the Gradle version or Android Gradle Plugin (AGP) supports.
adb server version (41) doesn't match this client (39); killing...
Two different adb binaries are running — e.g. Android Studio’s SDK adb and another one on PATH (Homebrew, Genymotion, older SDK).
SDK location not found. Define a valid SDK location with an ANDROID_HOME environment variable or by setting the sdk.dir path in local.properties
Gradle doesn’t know where the Android SDK is installed.
IllegalStateException: Default FirebaseApp is not initialized in this process
Firebase couldn’t initialise because google-services.json or the Google Services Gradle plugin is missing/misapplied, or initiali…
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Popular: 500403400ORA-009331064Critical errorFileNotFoundException assemblyTypeError