Could not open settings generic class cache for settings file ”

The Inconsistent Java Version Conundrum: A Step-by-Step Solution

If you’re facing the issue “Could not open settings generic class cache for settings file ””, chances are that your problem lies in an inconsistency between the Java version installed on your machine, the default Java version configured on your Android Studio, and the Gradle version specified in your project’s configuration.

The Solution: Tackling the Inconsistency

Building upon the insightful answer provided by Tafita Raza, we can tackle this issue by following a series of steps that ensure consistency across all three versions:

Step 1: Identify Your Java Version

Firstly, navigate to your terminal and execute the command `java -version`. This will reveal the version of Java installed on your machine. Remember this version for later reference.

java -version

Step 2: Update Android Studio’s Default Java Version

Head over to the installation path of your Android Studio. If you’re using a newer version, you’ll find the configuration file in `Andriod Studio/jbe`. For older versions, it resides in `Android Studio/jre/`. Edit the file named “release” and replace the value of `JAVA_VERSION` with the Java version installed on your machine. Ensure this value matches the one you noted down earlier.

// In newer versions:
cd Android Studio/jbe
nano release

// In older versions:
cd Android Studio/jre/
nano release

Step 3: Verify Gradle Version Compatibility

Now, navigate to your project folder and check the compatibility of your Gradle version with the Java installed on your machine. The following table (as of 2023-11-12) will guide you in selecting the correct Gradle version:

I had Java version 19 installed on my system, so according to the table, I needed Gradle version 7.6 to build a project. You can also refer to the official website of Gradle at https://docs.gradle.org/current/userguide/compatibility.html if your Java version is not listed.

Step 4: Update Your Project’s Gradle Version

Now, navigate to your project folder and head over to `project_name/android/gradle/wrapper`. Edit the file named `gradle-wrapper.properties` and replace the `distributionUrl` with the version of Gradle compatible with the Java version on your system.

cd project_name/android/gradle/wrapper
nano gradle-wrapper.properties

Conclusion

By following these steps, you’ve ensured consistency across all three versions: the Java version installed on your machine, the default Java version configured in Android Studio, and the Gradle version specified in your project’s configuration. This should resolve the issue “Could not open settings generic class cache for settings file ”” and allow you to build your project successfully.