App Does Not Compile

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Introduction

When developing mobile applications using React Native, encountering compilation errors can be frustrating and time-consuming. In this article, we will focus on troubleshooting a specific issue that arises after upgrading to the latest version of the react-native-in-app-review package. We will explore the error message, its causes, and provide step-by-step solutions to resolve the issue.

Error Message

After upgrading to version "react-native-in-app-review": "4.3.4", you may encounter the following error message:

Task failed with an exception.
-----------
* What went wrong:
A problem occurred configuring project ':react-native-in-app-review'.
> compileSdkVersion is not specified. Please add it to build.gradle

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.
==============================================================================

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

For more on this, please refer to https://docs.gradle.org/8.6/userguide/command_line_interface.html#sec:command_line_warnings in the Gradle documentation.

BUILD FAILED in 10s
5 actionable tasks: 1 executed, 4 up-to-date
make: *** [clean] Error 1

Causes of the Error

The error message indicates that the compileSdkVersion is not specified in the build.gradle file. This is a critical configuration setting that tells the Android build system which version of the Android SDK to use for compilation.

Solution 1: Specify the Compile SDK Version

To resolve the issue, you need to specify the compileSdkVersion in the build.gradle file. You can do this by adding the following line of code:

android {
    compileSdkVersion 32 // or the desired version
}

Replace 32 with the desired version of the Android SDK. For example, if you want to use Android 11, you would use compileSdkVersion 30.

Solution 2: Update Gradle Version

The error message also mentions that the Gradle version is deprecated and incompatible with Gradle 9.0. To resolve this issue, you need to update the Gradle version in your project. You can do this by adding the following line of code in the build.gradle file:

buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:7.3.0' // or the desired version
    }
}

Replace 7.3.0 with the desired version of the Gradle plugin.

Solution 3: Clean and Rebuild the Project

After making the necessary changes to the build.gradle file, you need to clean and rebuild the project. You can do this by running the following command in your terminal:

npx react-native clean
npx react-native run-android

This will clean the project and rebuild it using the updated Gradle version.

Conclusion

In this article, we explored the error message that arises after upgrading to the latest version of the react-native-in-app-review package. We identified the causes of the error and provided step-by-step solutions to resolve the issue. By specifying the compileSdkVersion and updating the Gradle version, you can resolve the compilation error and continue developing your mobile application using React Native.

Additional Tips

  • Make sure to update the android block in the build.gradle file to match the desired version of the Android SDK.
  • Use the --stacktrace option to get the stack trace of the error message.
  • Use the --info or --debug option to get more log output.
  • Use the --scan option to get full insights into the build process.

Q&A: Troubleshooting Compilation Errors in React Native

Q: What is the cause of the compilation error after upgrading to the latest version of react-native-in-app-review? A: The compilation error is caused by the missing compileSdkVersion in the build.gradle file. This is a critical configuration setting that tells the Android build system which version of the Android SDK to use for compilation.

Q: How do I specify the compileSdkVersion in the build.gradle file? A: To specify the compileSdkVersion, you need to add the following line of code in the build.gradle file:

android {
    compileSdkVersion 32 // or the desired version
}

Replace 32 with the desired version of the Android SDK.

Q: What is the difference between compileSdkVersion and targetSdkVersion? A: compileSdkVersion specifies the version of the Android SDK to use for compilation, while targetSdkVersion specifies the version of the Android SDK to use for testing and deployment.

Q: How do I update the Gradle version in my project? A: To update the Gradle version, you need to add the following line of code in the build.gradle file:

buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:7.3.0' // or the desired version
    }
}

Replace 7.3.0 with the desired version of the Gradle plugin.

Q: What is the purpose of the --stacktrace option? A: The --stacktrace option is used to get the stack trace of the error message. This can be helpful in identifying the root cause of the compilation error.

Q: How do I use the --info or --debug option? A: The --info or --debug option is used to get more log output. This can be helpful in identifying the root cause of the compilation error.

Q: What is the purpose of the --scan option? A: The --scan option is used to get full insights into the build process. This can be helpful in identifying the root cause of the compilation error.

Q: How do I clean and rebuild the project? A: To clean and rebuild the project, you need to run the following command in your terminal:

npx react-native clean
npx react-native run-android

This will clean the project and rebuild it using the updated Gradle version.

Q: What are some additional tips for troubleshooting compilation errors in React Native? A: Some additional tips for troubleshooting compilation errors in React Native include:

  • Make sure to update the android block in the build.gradle file to match the desired version of the Android SDK.
  • Use the --stacktrace option to get the stack trace of the error message.
  • Use the --info or --debug option to get more log output.
  • Use the --scan option to get full insights into the build process.

By following these tips and solutions, you can troubleshoot and resolve compilation errors in React Native and continue developing your mobile application.