If the project comes with Gradle support, you will see a
build.gradle file in your project root.
IntelliJ IDEA has the Gradle plugin installed by default. If you have disabled it, go to
Plugins to re-enable it.
If your project involves GUI programming, similarly ensure the JavaFX plugin has not been disabled.
Open. Otherwise, click
Gradle JVMmatches the JDK being used for the project.
Gradle Toolbarin the IDEA interface e.g., look for the elephant icon (on Windows, this appears on the right-edge of the IDE window) and click it.