# gradle > An open source build automation system. > More information: . - Compile a package: `gradle build` - Exclude test task: `gradle build -x {{test}}` - Run in offline mode to prevent Gradle from accessing the network during builds: `gradle build --offline` - Clear the build directory: `gradle clean` - Build an Android Package (APK) in release mode: `gradle assembleRelease` - List the main tasks: `gradle tasks` - List all the tasks: `gradle tasks --all`