/usr/lib/kafka/bin/kafka-run-class.sh: line 24: uname: command not found /usr/lib/kafka/bin/kafka-run-class.sh: line 24: uname: command not found /usr/lib/kafka/bin/kafka-run-class.sh: line 24: uname: command not found /usr/lib/kafka/bin/kafka-run-class.sh: line 49: dirname: command not found /usr/lib/kafka/bin/kafka-run-class.sh: line 59: cut: command not found /usr/lib/kafka/bin/kafka-run-class.sh: line 79: dirname: command not found /usr/lib/kafka/bin/kafka-run-class.sh: line 80: dirname: command not found /usr/lib/kafka/bin/kafka-run-class.sh: line 81: dirname: command not found Classpath is empty. Please build the project first e.g. by running './gradlew jar -PscalaVersion=2.13.16'