错误
Communication error with Jack server (60), try 'jack-diagnose' or see Jack server log
FAILED: /bin/bash -c "(prebuilts/sdk/tools/jack-admin install-server prebuilts/sdk/tools/jack-launcher.jar prebuilts/sdk/tools/jack-server-4.8.ALPHA.jar 2>&1 || (exit 0) ) && (JACK_SERVER_VM_ARGUMENTS=\"-Dfile.encoding=UTF-8 -XX:+TieredCompilation\" prebuilts/sdk/tools/jack-admin start-server 2>&1 || exit 0 ) && (prebuilts/sdk/tools/jack-admin update server prebuilts/sdk/tools/jack-server-4.8.ALPHA.jar 4.8.ALPHA 2>&1 || exit 0 ) && (prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-2.28.RELEASE.jar 2.28.RELEASE || exit 47; prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-3.36.CANDIDATE.jar 3.36.CANDIDATE || exit 47; prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-4.7.BETA.jar 4.7.BETA || exit 47 )"
Jack server already installed in "/home/leo/.jack-server"
Communication error with Jack server (77), try 'jack-diagnose' or see Jack server log
Failed to contact Jack server: Problem reading /home/leo/.jack-server/server.pem. Try 'jack-diagnose'
Failed to contact Jack server: Problem reading /home/leo/.jack-server/server.pem. Try 'jack-diagnose'
[ 0% 76/33166] target Executable: trunks_test (out/target/product/angler/obj/EXECUTABLES/trunks_test_intermediates/LINKED/trunks_test)
ninja: build stopped: subcommand failed.
make: *** [ninja_wrapper] 错误 1
错误组件
jack-server无法连接，它可能正在被服务器内的其他用户使用。
解决
ps aux | grep jack-server
找到对应的PID，把它杀掉（确认安全）。- 进入
prebuilts/sdk/tools重新安装jack-server
./jack-admin stop-server; ./jack-admin uninstall-server;./jack-admin install-server jack-launcher.jar jack-server-4.8.ALPHA.jar
安装、启动成功的打印：
Stopping background server
No Jack server running. Try 'jack-admin start-server'
Removing jack server from "/mnt/zhonghongyu/.jack-server"
nstalling jack server in "/mnt/zhonghongyu/.jack-server"
- 开始编译即可