Bottom Line: It is 100% safe to clear ~/.gradle/daemon. Daemons store build log outputs and lock files. Stopping active daemons and deleting logs frees drive space.
What is the Gradle Daemon Folder?
Located at ~/.gradle/daemon/ (or %USERPROFILE%\.gradle\daemon), Gradle spawns background daemon worker processes to speed up Android and Java builds.
How to Clean Up Gradle Daemons
./gradlew --stop
rm -rf ~/.gradle/daemon/*
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