# Android Build Issues ![](https://docs.pixelstrap.net/laravel/taxido/assets/images/icons/errors.png) Common Errors in APK Generation (Android Build Issues)
----------------------- 1. **Task :app:bundleReleaseJsAndAssets FAILED**
* Error Message :
```html Task :app:bundleReleaseJsAndAssets FAILED ``` * Possible Solutions * Run the following command before building :
```html npx react-native start --reset-cache ``` * Try cleaning and rebuilding: ```html cd android && ./gradlew clean ``` ```html cd.. ``` ```html npx react-native run-android --variant=release ``` 2. **Keystore file not found for signing config release**
* Error Message :
```html Keystore file '/android/app/release.keystore' not found for signing config 'release' ``` * Possible Solutions : * Ensure your keystore file is placed in **android/app/**. * Check your **android/app/build.gradle for** :
```html signingConfigs { release { storeFile file('release.keystore') storePassword 'your-password' keyAlias 'your-key-alias' keyPassword 'your-key-password' } } ``` * If missing, create a new keystore :
```html keytool -genkey -v -keystore release.keystore -alias my-key-alias -keyalg RSA -keysize 2048 -validity 10000 ``` 3. **SDK location not found**
1. Error Message :
```html SDK location not found. Define location with sdk.dir in the local.properties file. ```
2. Possible Solutions :
* Open android/local.properties and set the correct SDK path :
```html sdk.dir=/Users/your-username/Library/Android/sdk (Mac) ``` ```html sdk.dir=C:\\Users\\your-username\\AppData\\Local\\Android\\Sdk (Windows) ``` * If missing, create the file and add the path manually.\
4. **app-release.apk not found after build**\ \ Possible Solutions : * Ensure you have built the APK correctly :
```html cd android && ./gradlew assembleRelease ``` * The APK will be located at :
```html android/app/build/outputs/apk/release/app-release.apk ```
5. **Unable to resolve dependency for ':app\@release/compileClasspath'**\ \ Possible Solutions : * Run :
```html cd android && ./gradlew clean ``` ```html ./gradlew --refresh-dependencies ``` * Check if any library is missing in package.json and reinstall :
```html npm install ``` 6. **React Native Hermes: Release build fails**
1. Error Message :
```html error: no suitable constructor found ``` 2. Possible Solutions :
* If using Hermes, ensure it's enabled :
```html enableHermes: true ``` * Try :
```html cd android && ./gradlew clean ```
7. **Execution failed for task ':app:mergeDexRelease'** 1. Error Message :
```html Execution failed for task ':app:mergeDexRelease'. ``` 2. Possible Solutions : ```html defaultConfig { multiDexEnabled true } ``` 8. **Install Multidex :**
```html npm install @react-native-community/multidex ``` 9. **Rebuild the app :**
```html cd android && ./gradlew clean ``` ```html npx react-native run-android --variant=release ```
10. **Could not determine the dependencies of task ':app:compileReleaseJavaWithJavac'**\ \ Possible Solutions : * Ensure JDK 17 is installed :
```html java -version ``` * If not Java 17, update it :
```html export JAVA_HOME=$(/usr/libexec/java_home -v 17) ``` * Rebuild the app.
11. **minCompileSdk (31) is greater than compileSdkVersion (30)** \ \ Error Message :
```html Android dependency 'androidx.core:core' has different version for the compile ``` \ Possible Solutions :\ * Update your android/build.gradle :
```html compileSdkVersion = 33 targetSdkVersion = 33 ``` * Rebuild the project : ``` cd android && ./gradlew clean npx react-native run-android --variant=releas ``` 12. **Execution failed for task StyleSizeLength is not supported.**
12. Error Message :
```html Invariant Violation: StyleSizeLength is not supported. You need to replace StyleSizeLength with StyleLength. ```
Possible Solutions :\ * Delete the `.cxx` folder
```html rm -rf android/app/.cxx ``` * **Modify the file in node\_modules** Navigate to:
```html node_modules/react-native-svg/common/cpp/react/renderer/components/rnsvg/RNSVGLayoutableShadowNode.cpp ``` * Open the file and **replace all occurrences of** `StyleSizeLength` with `StyleLength`.
```html StyleSizeLengthReplace with StyleLength ``` 13. ``` Error Message :
``` ```` ```html Invariant Violation: StyleSizeLength is not supported. You need to replace StyleSizeLength with StyleLength. ```
Possible Solutions :\ * Delete the `.cxx` folder
```html rm -rf android/app/.cxx ``` * **Modify the file in node\_modules** Navigate to:
```html node_modules/react-native-svg/common/cpp/react/renderer/components/rnsvg/RNSVGLayoutableShadowNode.cpp ``` * Open the file and **replace all occurrences of** `StyleSizeLength` with `StyleLength`.
```html StyleSizeLengthReplace with StyleLength ``` ```` Rebuild the project : ``` cd android && ./gradlew clean npx react-native run-android or ./grdalew assebelDebug ``` 13. Build failed due to **Firebase package version mismatch**.\ \ Possible Solution:
Please make sure **all Firebase packages are using the same version** to avoid compatibility issues.
Use the following versions: ```json "@react-native-firebase/app": "21.11.0", "@react-native-firebase/auth": "21.11.0", "@react-native-firebase/messaging": "21.11.0", "@react-native-firebase/storage": "21.11.0" ``` #### Error Message Build failed due to **Firebase package version mismatch**.\ Firebase native modules require all `@react-native-firebase/*` packages to be on the **same version**.\ If versions are different, Android/iOS build may fail. ## **General Fix for APK Issues** 
cd android

./gradlew clean

For Debug APK: ./gradlew assembleDebug 

For Release APK: ./gradlew assembleRelease
{% hint style="warning" %} Note: Make sure that you do not use the ^ (caret) symbol while installing this package. Using ^ allows npm to automatically install a newer version, which can again lead to version mismatch problems. {% endhint %} ##