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{# This content gets published to the following location: #} {# https://firebase.google.com/docs/crashlytics/get-deobfuscated-reports?platform=flutter #}

By default, {{firebase_crashlytics}} automatically instruments your Flutter project to upload the necessary symbol files that ensure crash reports are deobfuscated and human readable.

Unfortunately, there are cases that can result in the project not being fully configured. This guide outlines what the automation does and provides first steps to debug your project setup.

Apple platforms {: #apple}

Check your configuration for uploading dSYM files {: #apple-upload-dsym-script-configuration}

Adding the {{crashlytics}} Flutter plugin and running the flutterfire configure command will attempt to add a run script to your project’s Xcode workspace that finds and uploads the necessary dSYM symbol files to {{crashlytics}}. Without these files, you’ll see a "Missing dSYM" alert in the {{crashlytics}} dashboard and exceptions will be held by the backend until the missing files are uploaded.

If you have this issue, first make sure that you have the run script installed:

  1. Locate and open the Xcode workspace file in your project’s iOS directory (FLUTTER_PROJECT_NAME/ios/Runner.xcworkspace).

  2. Identify whether a run script titled [firebase_crashlytics] Crashlytics Upload Symbols has been added to the Runner target’s Build Phases.

    See the applicable section below for whether the run script does not exist or the run script exists.

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Run script for auto-upload of dSYMs does _not_ exist

If this run script does not exist, you can add it manually:

  1. Locate the Firebase App ID for your Apple app. Here are two different places where you can find this ID:

    • In the {{name_appmanager}}, go to your settings > Project settings. Scroll down to the Your apps card, then click on your Firebase Apple App to view the app's information, including its App ID.

    • In your Flutter project's top-level directory, find your firebase_options.dart file. The Firebase App ID for your Apple app is labeled as GOOGLE_APP_ID.

  2. Click add > New Run Script Phase.

    Make sure this new Run Script phase is your project's last build phase. Otherwise, {{crashlytics}} can't properly process dSYMs.

  3. Expand the new Run Script section.

    Note: For the remaining substeps, copy-and-paste the paths exactly as specified, and Xcode will resolve them. However, if you have issues with Xcode resolving these paths or a unique project structure, you can manually specify the paths instead.

  4. In the script field (located under the Shell label), add the following run scripts.

    These scripts process your dSYM files and upload the files to {{crashlytics}}.

    $PODS_ROOT/FirebaseCrashlytics/upload-symbols --build-phase --validate -ai FIREBASE_APP_ID -- $DWARF_DSYM_FOLDER_PATH/App.framework.dSYM
    $PODS_ROOT/FirebaseCrashlytics/upload-symbols --build-phase -ai FIREBASE_APP_ID -- $DWARF_DSYM_FOLDER_PATH/App.framework.dSYM
    • FIREBASE_APP_ID: Your Firebase Apple App ID (not your Apple bundle ID)
      Example Firebase Apple App ID: 1:1234567890:ios:321abc456def7890

    {{ '

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    Need to find your Firebase App ID?

    Here are two ways to find your Firebase App ID:

    • In your GoogleService-Info.plist file, your App ID is the GOOGLE_APP_ID value; or

    • In the {{name_appmanager}}, go to your Project settings{: .external}. Scroll down to the Your apps card, then click on the desired Firebase App to find its App ID.

    {{ '

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  5. In the Input Files section, add the paths for the locations of the following files:

    ${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}
    ${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}/Contents/Resources/DWARF/${PRODUCT_NAME}
    ${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}/Contents/Info.plist
    $(TARGET_BUILD_DIR)/$(UNLOCALIZED_RESOURCES_FOLDER_PATH)/GoogleService-Info.plist
    $(TARGET_BUILD_DIR)/$(EXECUTABLE_PATH)

    Understand why the locations of these files are needed

    Xcode looks in the specified locations for these input files to ensure that the build files are available for the run script. Also, if User Script Sandboxing is enabled, Xcode only allows the run script to access files specified in the Input Files.

    • Providing the location of your project's dSYM files enables {{crashlytics}} to process dSYMs.
    • Providing the location of your app's built GoogleService-Info.plist file enables {{crashlytics}} to associate the dSYMs with your Firebase app.
    • Providing the location of your app's executable allows the run script to prevent duplicate uploads of the same dSYM. Note that app binaries are not uploaded.

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Run script for auto-upload of dSYMs exists

If the run script does exist, refer to the Apple-specific guide for troubleshooting dSYM issues. You’ll need to take the following additional steps if you choose to upload your dSYM files via the described process:

  1. Locate the Firebase App ID for your Apple app. Here are two different places where you can find this ID:

    • In the {{name_appmanager}}, go to your settings > Project settings. Scroll down to the Your apps card, then click on your Firebase Apple App to view the app's information, including its App ID.

    • In your Flutter project's top-level directory, find your firebase_options.dart file. The Firebase App ID for your Apple app is labeled as GOOGLE_APP_ID.

  2. When running the upload-symbols script, use -ai FIREBASE_APPLE_APP_ID instead of -gsp /path/to/GoogleService-Info.plist.

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Check your version configuration for Flutter and {{crashlytics}} (if using the --split-debug-info flag) {: #apple-split-debug-info}

If your Flutter project uses the --split-debug-info flag (and, optionally, also the --obfuscate flag), additional steps are required to show readable stack traces for your app.

Make sure that your project is using the recommended version configuration (Flutter 3.12.0+ and {{crashlytics}} Flutter plugin 3.3.4+) so that your project can automatically generate and upload Flutter symbols (dSYM files) to {{crashlytics}}.

Android {: #android}

Check your dependency configuration {: #android-dependency-configuration}

The flutterfire configure command attempts to add necessary dependencies to your project’s Gradle build files. Without these dependencies, crash reports in the {{name_appmanager}} may end up obfuscated if obfuscation is turned on.

Make sure the following lines are present in the project-level build.gradle and in the app-level build.gradle:

  • In the project-level build file (android/build.gradle), check for the following line:

    dependencies {
  // ... other dependencies

  classpath 'com.google.gms:google-services:4.3.5'
  classpath 'com.google.firebase:firebase-crashlytics-gradle:2.7.1'
}

  • In the app-level build file (android/app/build.gradle), check for the following line:

    // ... other imports

android {
  // ... your android config
}

dependencies {
  // ... your dependencies
}

// This section must appear at the bottom of the file
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'

Check that you're using the {{cli}} to upload Flutter symbols (if using the --split-debug-info flag) {: #android-split-debug-info}

If your Flutter project uses the --split-debug-info flag (and, optionally, also the --obfuscate flag), additional steps are required to show readable stack traces for your app.

Use the {{firebase_cli}} (v.11.9.0+) to upload Flutter debug symbols. You need to upload the debug symbols before reporting a crash from an obfuscated code build.

From the root directory of your Flutter project, run the following command:

firebase crashlytics:symbols:upload --app=FIREBASE_APP_ID PATH/TO/symbols

  • FIREBASE_APP_ID: Your Firebase Android App ID (not your package name)
    Example Firebase Android App ID: 1:567383003300:android:17104a2ced0c9b9b

    {{ '

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    Need to find your Firebase App ID?

    Here are two ways to find your Firebase App ID:

    • In your google-services.json file, your App ID is the mobilesdk_app_id value; or

    • In the {{name_appmanager}}, go to your Project settings{: .external}. Scroll down to the Your apps card, then click on the desired Firebase App to find its App ID.

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  • PATH/TO/symbols: The same directory that you pass to the --split-debug-info flag when building the application

If problems persist, refer to the Android-specific guide for troubleshooting obfuscated reports.