There are a few ways to find your Gradle version. One way is to open the Gradle build file for your project and look for the line that starts with 'distributionUrl'. The version will be listed after 'distributionUrl=https\\://services.gradle.org/distributions/gradle-' and before '.zip'.
Another way to find your Gradle version is to run the 'gradle -v' command from the command line.
If you are using Android Studio, you can also find your Gradle version by opening the "Preferences" dialog, clicking on the "Build, Execution, Deployment" category, and selecting "Gradle" from the left panel. The Gradle version will be listed in the "Gradle version" field.